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E070001  Combined safety. Rupture disk directly in front of the safety valve

          [Abstract]: Safety considerations when combining rupture discs  in series with a safety valve are considered. This includes the use of a non-splintering disc. The combination of the two systems results in the advantages of both. The rupture disk and the re-closing of relief out-lets by the valve allows plant operations to continue.    

E070002  Tyco fulfills all tanker valve requirements

          [Abstract]: The UK road tanker manufacturer Clayton Commercials has met most of its tanker valve requirements using a single source, Tyco Valves and Controls. Tankers produced by Clayton are used throughout industry for transporting a wide range of products, from food to hazardous chemicals and bitumen. The valve requirements are dictated by the application itself or the end user's specifications. For use on chemical carrying road tankers, Tyco supplies a large number of lined butterfly valves from its Neotecha range, incorporating PTFE-lined bodies and PFA encapsulated-discs. These can withstand the majority of chemical products. To meet the special requirements of its bitumen road tankers, Clayton uses Winn high performance butterfly valves with plasma nitrided discs and inconel nitrided seats. Inherently fire-safe, these metal to metal valves are ideal for withstanding the abrasive nature of the bitumen and the extreme temperatures of up to 250°C. For hygienic duties, Clayton uses Keystone rubber lined butterfly valves with a one-piece wafer-thin disc/stem providing positive disc control with minimum flow obstruction. Featuring a crevice-free design, the Keystone valve eliminates the possibility of product entrapment and contamination. Clayton also uses a number of one-piece Ultra-Seal ball valves from the Hindle range for air lines, sampling points and when users have specified ball valves.

E070003  Check valve caused plant explosion

          [Abstract]: A new report from the US EPA and OSHA indicates that the internal failure and blowout of a check valve was to blame for a chemicals explosion at Shell Chemical’s plant at Deer Park, TX in 1997. This caused a flammable gas leak and vapour cloud which ignited. A copy of the report can be found athttp://www.epa.gov/ceppo/acchis.html. This includes recommendations on preventing such an accident from occurring in the future.    

E070004  Fires,vessels and the pressure relief valve

          [Abstract]: Pressure relief valve (PRV) design for vessel protection from fire is not straightforward and four scenarios: a liquid full vessel; an adequate liquid level; an inadequate liquid level; and gas or vapour filled vessel, must be considered. The application of appropriate equations to determine the area of an external fire zone, heat transferred to liquids in protected vessels, the venting rate and finally to calculate the PRV area, for the first two scenarios are described and complement the two other scenarios examined in an earlier article.

E070005  New diaphragm valve interlock will not jam

         [Abstract]:  Smith Flow Control has introduced the new Ellis type GG safety interlock which is designed for use with diaphragm valves. This can be adjusted to any variations in the valve's final closed position to enable the key to be freed. Under normal operating environments, the closed position of a diaphragm valve can vary; as most interlocks require valves to have a set closing position before the key can be released to lock the valve, this variation can have an adverse effect on an interlock's operational effectiveness. It can even result in the key becoming jammed. The Ellis GG interlock overcomes this problem by allowing the closed, key-release position to be easily adjusted to accommodate any variations in the diaphragm valve's positioning.  

E070006  Innovative safety solution for valve change-over procedure

         [Abstract]: Process safety specialist Smith Flow Control has designed an innovative interlocking system for the change-over sequence between relief valves at Norsk Hydro's Rafnes Petrochemical Refinery in southern Norway. At the refinery, the change-over of relief valves for the cooling water system is achieved using handwheel-operated 3-way diverter globe valves, which divert the process flow from one relief valve to another. Under these conditions, partial valve operation to its mid-position must be strictly controlled.     

E070007  Oil Well Discovers Smart Technology

         [Abstract]: Editor's Note: Joe Gross will tell you that years of experience with offshore oil wells have taught him that the oil production process can be a demanding master."0il wells are sensitive creatures," he says. "They are sbject to upset at the slightest provocation. " An upset oil well led Gross, the president of Alaskan- based Alpine Valve & Control Systems, to Unocal Alaska' s Monopod offshore platform in the Upper Cook Inlet. Unoca] is a leading natural gas and crude oil exploration and production company. Installed in 1967, its Monopod platform was one of the first deployed in the Cook Inlet. Gross worked closely with Just us Hinks, a Unocal production engineer, to stabilize the well's performance and thus increase revenue. In the following article, they share their experience determining what was behind the well's production problems and how they developed a solution.

E070008  Drain Valve

         [Abstract] :The EDV-2006 Terminator solenoid drain valve is designed as a reliable means of removing condensate from air systems. It drains compressed air equipment including filters, dryers, drop legs, receiver tanks, separators, and aftercoolers. This valve has adjustable opentimes and cycle times, an integrated "Y" strainer, and a convenient test function which enhances performance. 'This drain valve is suitable for both indoor and outdoor installation, and has a NEMA 4 rating with a Lexan enclosure. Van Air Systems, Lake City, PA, SO0 840 9906.

E070009   Conbraco Industries. Inc.        

[Abstract] :Apollo ball valves have a following in the CPI. Research shows that Apollo ball valves are used in 65% of U.S. chemical plants. Consistently the first or second choice of valve specifiers, they're known for their long life and lower installed costs in tough applications. That' s why chemical industry valve users around the globe depend on Apollo top entry and end entry ball valves. Whether you choose carbon steel, stainless steel or exotic alloys, they are 100 % American-made,  industrial strength workhorses.

E070010  Flowserve Corporation                       

        [Abstract] :Flowserve has more than one million pumps working in a broad range of industrial applications, and is the premier manufacturer of pumps for the chemical processing petroleum and power generating industries. Flowserve valves, valve actuators and valve automation systems are widely insta11ed in refineries, chemical plants, pharmaceutical, food and other processing applications.

E070011  A class of discontinuous dynamical systems I. An ideal gas -liquid system

         [Abstract]: When a liquid and a gas are sent into a closed system and withdrawn through a single outlet, discontinuous behaviour results. Two different models are applicable to this system depending on whether the liquid or the gas flows out. The system switches between the gas flow and the liquid flow incessant]y, reaching a state of sliding motion (F i ] ippov, Differential Equations with Discontinous Right and Sides. Mathematics and its Applications (Soviet Series), Kluwer, Dordrecht, 1988). It is shown that the state of sliding motion is reached from all starting positions. The sliding motion is also shown to be stable. The steady state of the sliding motion can also be considered as a time- averaged steady state. Simulation results support these predictions. Similar results are obtained in the presence of a control valve.

E070012  Accuracy of Safety Valve Flushing Two-phase Mass Flow Capacity Sizing

         [Abstract] :The method specified in ISO/CD 4126-10 exhibits the highest accuracy compared to other models used in industry and academia. At the same time it allows for an oversizing of the necessary relief area under all test conditions. The average or statistical reproductive accuracy is characterized by an unacceptable logarithmic scatter of about 80%.

E070013  Rising plug style Valve for Process Instrumentation Applications

        [Abstract] :Parker Instrumentation has developed a new rising plug style valve for process instrumentation applications. A patented design provides users with a valve solution for applications where contaminated media can lead to premature valve failure. Called the HRPV Series, the rising plug valve's "straight-through" design supports higher flow rates than needle valves, helping to avoid the build - up of deposits. It additionally allows cleaning to take place by rodding.

E070014  Instruments Directly Connected to Process Piping      

        [Abstract]: With the Close Coupled instrument Mounting Solution(CCIMS), Parker Instrumentation has launched a new integrated mounting and manifold block that connects instruments directly to process piping, thereby reducing the number of joints, and therefore potential leak paths. CCIMS allows pressure transmitters to be mounted directly onto an orifice plate assembly in less than 30 min, typically replacing hand crafted assemblies of discrete tubing, joint and.- valve components that can take anywhere from one to three man-days to fabricate.

E070015  Free Guide to Ball Valve Family

        [Abstract]:Parker Instrumentation has published a guide to its high-performance instrumentation ball valve family for instrument and process applications, called Hi-Pro. The novel two-piece Construction reduces potential leak paths to a minimum.                          

E070016  Antitamper Valve Lock

         [Abstract]: The new Anti-Tamper Lock (ATL) from Smith Flow Control secures companies’ assets by ensuring valves and actuators are only operated by authorized individuals. The way ATL works is very simple: The standard condition of the device in service is locked (key-free), with the handwheel free-rotating.

E070017  Forged Steel Valve Division Sold

         [Abstract]: Conbraco Industries Inc. has completed the sale of its RP&C forged steel valve division to Bonney Forge Corporation of Mt. Union, Pennsylvania. The RP&C sales off ice as well as all inventory will move to the Bonney Forge headquarters in Pennsylvania.

E070018  Flow Reaction Forces upon Blowdown of Safety Valves          

          [Abstract] :'The activation of safety valves causes the development of flow reaction forces that have to be transferred in an adequate way via the piping to the steel structure or via the connected vessel, into the foundation.  If the safety valve outlet piping is connected to a blowdown system or, in case of blowing off into the atmosphere, are equipped with a T-piece at the outlet,  the stationary reaction forces are compensated completely. The transient opening process, however, develops flow reaction forces which culminate in peaks of short duration.  In this article, a simple method will be proposed for the estimation of the resulting reaction forces as a function of the length of the pipe at the safety valve outlet. CFD calculations and blowdown tests executed with a full-lift safety valve have confirmed this method on principle. Special importance is attributed to the short duration of the effect of the reaction forces which seems to have only a negligible impact on the supporting steel structure.

E070019  Safety board cites lack of valve in worker death

         [Abstract]: The lack of a tank emergency pressure valve resulted in the death of one worker and the evacuation of 26 residents and a “shelter in place” warning for 1500 others living near the D.D.Williamson & Co. chemical plant in Louisville.

E070020  Weir flow and liquid height on sieve and valve trays

         [Abstract]：Mechanisms for the flow of liquid over outlet weirs of distillation and absorption trays are described in this paper. Weir flow contributes to the liquid height on a tray, and this height is important for the design and operation of trayed columns. Comparisons of available

experimental data with Francis' weir equation and with new stochastic liquid flow models showed that the traditionally used Francis' equation needs modification. The stochastic flow models link the weir flow to the flow mechanisms upstream of the tray outlet. These upstream mechanisms provide the input needed for a new weir crest equation. The existence of a so-called 'edge-vortex' (a horizontal roll cell at the boundary of the gassed and the ungassed region) is shown to play an important role, when a calming zone is present upstream of the outlet weir.

E070021  On the lower operating range of sieve and valve trays

          [Abstract]: A model of the lower operating limits of distillation and absorption trays is described in this paper. The model requires the simultaneous solution of two equations describing (1) liquid flow across the tray and over the outlet weir, and (2) countercurrent liquid flow through the free hole area of the tray. The second equation stems from models of a tray without downcomers; this equation was validated by means of available test data. The model gives liquid height and weep fraction as a function of gas and liquid flow rates, for a given tray layout. As shown, it permits calculation of the gas flow rate at weep and seal point, in a coherent way. Examples illustrate the use of the method in calculating the pt. sition of the weeping range of a tray and its relation to tray efficiency.

E070022  Gas-- non Newtonian Liquid flow Through Globe and Gate Valves

         [Abstract] :Experimental investigations have been carried out to evaluate the two-phase pressure drop across half inch globe and gate valves for gas non-Newtonian Liquid flow. The non Newtonian liquids used were different concentrations of dilute solutions of the sodium salt of carboxymethyl cellulose (SCMC), which behaved as pseudo plastic liquids. Generalized correlations in terms of the various physical and dynamic variables of the system have been developed for prediction of the two phase frictional pressure drop for each valve.Statistical analysis of the correlations suggest that they are of acceptable accuracy.

E070023  Color indicators show when valves are open or closed

         [Abstract]: Mininert (photo bottom left) valves for laboratory glassware and syringes offer push button operation with color coding--green to open and red to close. Valve bodies are PTFE with a stainless-steel stem. When used in laboratory glassware, these valves provide leak- tight closure with syringe access to screw-cap and crimp- top vials, test tubes. flasks and reaction chambers.

E070024  Operate valves easily, and eliminate operator fatigue

          [Abstract]: Easi-Drive (photo, middle) is a portable valve-operating system for use with manual valves in situations where valve size, pressure rating or work environment would otherwise demand a dedicated actuator. This system contains three elements: drive gun, valve coupler and power pack.

E070025  This pneumatically operated valve handles a variety of fluids

         [Abstract]:The Type  2712 Pneumatically operated Globe Control Valve incorporates a self adjusting gland tested at more than 2 million cycles. This valve handles neutra] and aggressive fluids, 150-psi steam and gases up to 365 deg F.

E070026  Severe duty applications are served by these ball valves           

          [Abstract] :This line of 0.5 in. trunion style ball valves (photo right) was designed specifically for severe-duty applications. Available in two- way and three way configurations, these valves are rated to 10,000 psi. The two way ball valve offers complete shutoff with a 1/4 turn while the three way valve requires a 1/2 turn to change port outlets.

E070027  These sealless valves prevent excess system pressure              

[Abstract] :These regulating valves are designed with a tapered plunger and valve seat that are isolated by a Viton or Teflon diaphragm between the wet end of the valve and the valve top. When excess pressure overcomes the adjustable spring- pressure on the plunger, the plunger lifts off the seat allowing fluid to bypass and reduce system pressure.

E070028  This valve controls boiler feed-pump recirculation          

         [Abstract] :The Multi-Z, severe-service control valve[photo right), is designed to handle high pressure drop applications where entrained solids are a problem. The valve features a multi stage trim design that eliminates cavitation and provides extended trim life.

E070029  Meter industrial process-fluid or plant-water flow

         [Abstract] :With its advanced differential-pressure flow technology, the new V2 System flow meter (photo, upper center) features built-in flow conditioning and requires minimum upstream and downstream straight-run piping when installed. The V2 System can measure flows from 40 to 7,500gal/min, depending on the line size, and comes ready to install with a built-in 3-way valve that isolates the transmitter from the process-fluid flow for easy maintenance.

E070030  Control Valves for Corrosive Service

         [Abstract] :When dealing with corrosive fluids, not only is material compatibility a concern but also the type of stem seal. The most common valve seal is the Teflon~R chevron ring. If additional sealing is required, an environmental packing system such as the REK packing is available. For the fluids that just can't leak, a bellow-sealed valve is the best choice. A bellow-sealed bonnet utilizes a metal bellow to seal the process fluid from the valve stem. This allows for the valve stem to move while maintaining a positive seal. These are used in applications where the fluid is toxic, corrosive, or expensive.

E070031  A multiport valve enhances counter current ion exchange

         [Abstract]: PuriTech (Dessel, Beilgium; Edlinks che.com/6514-536) has developed a continuous ion-exchange system, called Ionex, which uses up to 75% less water and requires about half the volume of ion-exchange resin, compared with traditional fixed-bed systems, says PuriTech projects director Filip Rochette.

E070032  Market change and growth

[Abstract]: New requirements for LNG, ethanol, tar sands nanotechnology, and biotechnology will boost the industrial valve market to a record.

E070033  News from the VMA

          [Abstract]: The valve manufacturers association of America (VMA, Washington, D.C.) reports an optimistic view of 2005, according to a survey of its members all respondents to the December 2005 survey said they expected to end2005 with higher sales than in 2004.

E070034  The better safety choice

          [Abstract]:In pressure relief applications, the rupture pin has simplicity and superior accuracy for pollution--free operation and rapid valve resetting, with uses in pressure relief', pressure isolation or flow diverting. Unlike rupture disks, the pin is not subject to premature fatigue failures or accuracy variations with ambient temperature changes.

E070035  These check valves are both reliable and versatile

          [Abstract] :Since 1958, Check All -Valve Mfg. Co. has manufactured a complete line of in-line spring-loaded piston-type check valves. With worldwide service, Check-All Valve serves a wide range of industries including chemicals, petrochemicals, pharmaceuticals, food and beverage, water treatment and many others. Lightweight efficient, and rugged, every Check-All valve is designed and built to perform to exact needs and specifications. The company is ISO 9001 2000 certified and manufactures product lines compliant with CE/PED requirements. Canadian Registration Number guide lines, 3A Sanitary Standards and others.

E070036  Control valve is an industry leader

          [Abstract] :Emerson Process Management has a new Fisher GX control valve that the company says delivers industry-leading smart technology, flexibility, and ease of use. The Design GX brings the benefits of' unmatched technology and reliability to control valves.

E070037  Pristine Processing

         [Abstract] :Valve selection is a critical consideration in the design of any high purity processing system. The chosen valve must be fully drainable to ensure the complete discharge of the process fluid, and it must seal the fluid in a manner that minimizes entrapment of any residue.

E070038  Improving Rotary Valve Performance

         [Abstract]: One component that is sometimes overlooked when troubleshooting pneumatic conveying systems is the rotary valve that feeds bulk materials into the system. Nevertheless, gas leakage from a rotary valve can indeed interfere with the flaw of solids into the valve, especially if the leakage is not considered when the conveying gas blower is sized or a suitable compensation method for the gas leakage is not provided.

E070039  FOCUS ON Solids Feeding

         [Abstract]: The Material Master Power Fill FIBC Filling System (photo, top left) features a patent-pending rotating and traversing bag--fill head that lowers and extends toward the operator, to ease bag loading. The modular unit features powered frame-height adjustment, an electro polished material inlet tube, an inflatable spout seal, an inlet fill  valve with bulk and dribble positions, an Allen-Bradley PLC with a touch screen operator interface.

E070040  Valve that reflects European thinking is now available in North America

         [Abstract] : An integrated, digital control-valve platform that has already made its mark in Europe and Asia is being introduced to the North American market by Emerson Process Management' s Fisher Controls Div. (Marshalltown, Iowa; edlinks, che. com/4818 537) The GX-DVC2000 valve offers a variety of features, among them compactness, ease of maintenance (a field reversible actuator, fewer parts, and an anticorrosion finish standard, For example).reduced engineering time(a link age free, non contact interface, and no need for actuator sizing), ease of commissioning, and high reliability, says the firm.

E070041  Customize your' high purity valve-round, square, big or small

         [Abstract] :This Firm has introduced a compact PTFE Bellows solenoid valve that can be customized for almost any high purity liquid application. The basic valve design is pressure balanced, and is rated for inlet pressures to 140 psi. Depending on the orifice size that is specified, back pressure is rated up to 70 psi. While the valve is designed for quick opening, normally closed applications, it can be modified for many types of service. In larger pipe sizes, a "pilot- assisted" design is available For higher flow requirements. Customizable attributes include the size, shape, mounting, body material, port configuration, piping connections and coil type.

E070042  Hygienic diaphragm valves don't call for special treatment

         [Abstract] :This firm now offers low -sulfur -content forged bodies with extended weld tangents in its Pure-Flo Hygienic Diaphragm valve product line(photo),The line features forged 316L stainless steel material, with sulfur content compliant to ASME Bioprocessing Equipment 2002 Standard, Table DT-3. Additionally the weld tangents of the valve bodies are equivalent to the weld tangent lengths specified for ASME  BPE compliant fittings.

E070043  Gaining Digital Capabilities with An Intelligent Valve Interface

         [Abstract] :Over the past decade, operating companies throughout the chemical process industries (CPI) have experienced changes in their work environments that have irrevocably changed many plant operating environments. Among the paradigm shifts that now  characterize many CPI work environments: The work force is routinely being challenged with more tasks and responsibilities with fewer personnel.

E070044  Size Safety-Relief Valves for Any Conditions

         [Abstract] :Safety-relief valves(SRVs)and rupture disks are typically used to protect equipment from excessive overpressure. Typical scenarios that can result in such overpressure in excess of the vessels MAWP (maximum-allowable working pressure) include external fire, blocked outlet line, power failure, loss of cooling water or steam, thermal expansion, excess inlet flow, accumulation of non condensables, failure of check or control valve, exchanger tube rupture, runaway reaction, and human error (for example, opening or closing the wrong valve). These and other scenarios are (discussed in more detail elsewhere [1].

E070045  TRAY COLUMN DESIGN :Keep Control of the Details

         [Abstract] :When a process engineer specifies a trayed distillation or stripping tower, the task of choosing the right kind of tray  sieve tray, valve tray or any of a variety of proprietary cross flow trays, for example - is an obvious one and has been widely covered in the engineering literature. Less obvious, however, are the importance of interacting intelligently with the equipment vendor about a host of other tray and column- related details, and of aiming for proper engineering coordination between various parties involved during column design and fabrication to ensure a smooth erection and startup.

E070046  CONTROL VALVES WITH BUILT IN DIAGNOSTICS

         [Abstract] :If the industrial valve market can be taken a marker for economic growth, then things are looking up. Sales of industrial valves worldwide are projected to teach US 50 billion by 2010, compared to the just under US 40 billion mark set in 2004, according to a report of the Mcllvaine Co. (Northfield, 111). However, last year, the ARC Advisory Group (Dedham, Mass) saw China as the only country world wide with double-digit growth for control valve Suppliers, with a compunded-annual-growth rate approaching 11% through 2008.

E070047  Cavitation not a problem for this control valve

         [Abstract]: The Multi-Z control valve (photo, top center) is specifically designed to handle high-pressure-drop applications where entrained solids are a problem. The valve is “ideal” for system start up and boiler-feed water recirculation.

E070048  High cycle valve

         [Abstract]:Although Metso Automation' s Shrewsbury, Mass;edlinks. che. com/,4823-538) Jamesbury Wafer--Sphere high-performance butterfly valve was commercialized over five years ago, its performance in high cycle applications has now been demonstrated. After years of installed service at air separation plants, the valve's life-cycle have been shown to be 4-5 times longer than those recorded for valves using conventional components, says marketing manager Brian Bombard.

E070049  Plastic ball valve provides graduated flow control

         [Abstract ] : By combining the strength of linear flow output with the proven ball design of this company' s Type 346 Ball Valve (photo top left), the new Type 110 Control Ball Valve provides a cost-effective way to allow for a gradual increase in flow.

E070050  Software can help you decide if pinch points are valve-related

         [Abstract] :The Smart Draw Process Designer fluid-flow simulation software, which is part of this firm' s Sinet//Chemproprocess engineering suite, is a handy tool to help engineers identify and rectify pinch points in utility systems (photo, lower left).

E070051  This chatter -proof, leak proof check valve seals in any position

         [Abstract] :Regardless of its mounting position the Series CKM diaphragm check valves are said to maintain a bubble-tight seal, giving them a performance advantage over conventional ball type check valves. The patented diaphragm automatically positions itself against the valve seat in an identical location every time, says the firm improving reliability, reducing wear and extending service,

E070052  Control valve is suited for severe boiler-feed water conditions

         [Abstract] :The flowserve Multi-Z is designed to handle high--pressure drop applications where entrained solids are a problem. As such, it is said to be particularly well suited for boiler-feed water recirculation and system startup (photo far left).

E070053  Linear valve monitors are ideal for sanitary applications          

         [Abstract]:Many sanitary diaphragm valves must be closely monitored and controlled. However, conventional monitors that are often used in these applications rely on mechanical switches with complex linkages, which are prone to reliability problems and are not designed to withstand the rigorous wash downs that are typical of high-purity process environments.

E070054  This control, valve diagnoses potential problems early on

         [Abstract]:The Fisher Fieldvue Digital Valve Controller has added new performance -diagnostics capabilities, which aim to simplify control--valve maintenance by detecting emerging conditions at the valve that could lead to valve failure.

E070055  This transfer valve outperforms conventional cast plug valves

         [Abstract]:The patented Series JR- 33 "Zero Leak" transfer valve is said to be the only transfer valve available with retractable, fully covered elastomer shoes (photo, above left). This design reduces operating torque and avoids dragging an 0-ring seal around the valve (which can result in seal wear and damage the valve-body bore).

E070056  Pick the Right Valve        

         [Abstract] :Know the pros and cons of each valve type to help select the right one for the job. Valves are used in pipeline systems to control the flow rate, the pressure, or the flow direction of a fluid. They can turn on, turn off, regulate, modulate or isolate the fluid.

E070057  Full Steam Ahead!

         [Abstract] :Are your desuper heaters and spray nozzles creating water problems? SAMSON Series 3280 Steam Conditioning Valves will let you keep cool and your steam dry! Cooling water is injected through a specially designed flow divider directly into the valve body. This process atomizes the water, ensuring complete evaporation. With no water droplets to worry about, trim erosion is a thing of the past. What's more, SAMSON valves are guaranteed to provide unparalleled accuracy and range ability for applications up to ANSI 2500.

E070058  Valve Selection Handbook. Fifth Edition. By Peter Smith and R.W. Zappe. Gulf Professional

         [Abstract]:Many types of valves are used in the process industries. This book has been written to help the piping specifying engineer choose valves for a specific application, ones that meet the design parameters of the process service. This new edition has been edited and contributed to by Mr. Smith, and it is based upon the original text (with some subtle changes) written by Mr. Zappe. The editor has added new chapters on actuators, double block and bleed ball valves, and valve locking devices.

E070059  Pressure relief for fail cars of an hydrous ammonia

         [Abstract] :A newly designed pressure relief valve (PRV) is available for railcars that handle an hydrous ammonia  (photo, bottom left).Stainless steel is used only for critical seating surfaces, such as seats and retainers, and a stainless steel overlay and retainer prevents rust buildup and corrosion that is commonly experienced in ammonia service-at a cost below that of an all-stainless steel valve. Wire seals yield a tamper evident design, and serial numbers are used to assure trace-ability.

E070060  New services manage loops, alarms or network security

        [Abstract] :This firm now offers life Time Performance Improvement Services, which includes Loop Management, Alarm Management and Network Security services. These services work together to help customers maximize the performance of their installed automation assets. The loop Management Services, for instance, begin with a thorough evaluation of all current plant or unit control loops. The evaluation includes comprehensive online diagnostics of all control valves. Loop and valve diagnostics are performed utilizing models created from a combination of real time data and historical information (collected via OPC).The service is available for virtually all process control systems and all field devices Foundation field bus or other digital field protocols are not required. Critical under- performing loops are prioritized for remediation, and if' desired, the firm's process control experts can perform the actual loop turning and recommend valve maintenance activities. A report is provided that documents the loop Performance improvements that were achieved; and ongoing remote monitoring, reporting, prioritization and onsite remediation services are available to help ensure optimal loop performance over time.

E070061  For Sampling, Match the Value to the Task

         [Abstract] :Instrumentation has come a long way in its ability to measure process temperature, pressure, conductivity, pH turbidity, density and other parameters online. Even so, there remains a wide range of industrial (as Well as commercial) situations in which paints need to take samples of their process streams or batches for offline laboratory analysis or validation. Sometimes over looked is the importance of choosing the right kind of valve for doing so.  

E070062  Ball valve: A new ball valve from George Fischer

         [Abstract]: The new 2-way ball valve type 546 is setting new standards in piping systems. George Fischer, a leading provider of plastic piping systems, has developed this ball valve in response to the needs of customers and the desire to further improve an excellent product. The type 546 offers plant engineers and operators an innovative system with many useful extension modules.

E070063  Conbraco

         [Abstract]: For almost 75 years, Conbraco Industries has been a leader in the development of valve and other flow control products for industrial applications. In the 1900s Conbraco was one of the first U.S. valve manufactures to earn ISO 9001 registration. Now Conbraco is leading the industry in pursuit of product and service quality for its customers world wide.

E070064  Inline

         [Abstract]: Inline Industries, a California corporation, manufactures industrial valve products for the U.S. and international marker place. Inline specializes in the production of high performance, corrosion resistant ball valves and automated systems. We deliver exceptional value to our customers by providing the three most important elements they look for in a manufacturer: quality, availability, and price.

E070065  Predictive maintenance solution gives answers, not just data

         [Abstract]: “The undesirable behavior of control valves is the biggest single contributor to poor control-loop performance and the destabilization of process operation,” claims Bruce Hohnson, vice president of instruments for the Fisher valve division of Emerson Process Management (St. Louis, Mo. ;emerson.com).

E070066  Using the idea gas specific heat ratio for Relief-valve Sizing

         [Abstract]: In API Recommended PRCTIVE 520, The basis for evaluating the ideal gas specific heat ratio has been modified from standard conditions (in the sixth edition) to relieving conditions (in the seventh edition).

E070067  Peering inside the low –noise valve

         [Abstract]: Noise restrictions for industrial facilities have been in effect in the U.S. since 1972 and there are comparable regulations in many other countries. Table 1 summarizes the U.S. regulations set forth by the U.S. Occupational Safety and Health Administration (OSHA). Modulating control valves are typically pressure-reducing devices; and when handling gases or stem, they can create substantial sound energy as a byproduct of the pressure-reducing process. Event a pressure reduction of merely about 2:1 say from 30 psia to 15 psia, gas passing through the valve orifice reaches sonic velocity, and according generates noise.

E070068  Heavy-duty Control Valves Live Long and Prosper

         [Abstract]: There is no such thing as a universal control valve. If the velocity of the process fluid passing through the valve body is high, a heavy-duty control valve is recommended. Heavy-duty valves minimize problems with cavitation, erosion, mechanical vibration, short life, erratic control and noise.

E070069  Fires, Vessels and the Pressure Relief Valve

         [Abstract]: Determine the area of an external fire zone, the heat transferred to liquids inside protected vessels, the venting rate, and then calculate the PRV area.

E070070  How valve Performance Affects the Control Loop

         [Abstract]: control loop consists of the process, the measurement, the controller, and a final control element. Optimal process control depends on all of these components working properly. Hence, before tuning a loop, one must verify that each component is operating properly and that the design is appropriate. I  The optimal PID tuning should be chosen after making sure all of the components are working properly. Field experience has shown us that good tuning can be more important than equipment performance itself.   We will discuss a method to determine if the valve is performing well while the process is running. We will show how a poorly performing valve will have a minimal effecton control loop performance if the tuning parameters are not optimal. On the other hand, ifa control loop is tuned to achieve performance, the control valve behavior Will have a major impact on performance.

E070071  How to Choose a ‘Smart’ Valve System

         [Abstract]: Over the past few years, flow-control engineers have been catching on to the trend of installing "smart" valves in their facilities (CE, March 1998, p. 32; February 1999, p. 41). Sales of smart valves, which have a microprocessor that controls the units' positioners, have been increasing at approximately 50% a year for the past five years, according to Automation Research Corp. (Dedham, Mass.). About one third of the control valves sold today are equipped with smart positioners. Within the next ten years, it is anticipated that more than 95% of all valves sold will be equipped with smart positioners. When deciding to install these flow-control devices, plant engineers are usually bombarded with information-- and a lot of hype. This article demystifies the overwhelming task of choosing a valve system that is correct for the application at hand. An explanation of the technology is presented, as well as a step-by-step selection guide, along with the technology that will be available in the future.

E070072  Simplified Valve Sizing for Laminar Flows

         [Abstact]: Valve sizing equations for control valves are widely accepted when flow is turbulent[1]. These equations are not valid when the flow is laminar or transitional (Rev < 10,000).  A method has been derived to correct turbulent valve Cv values for laminar and transitional flow. This technique is much simpler to use than the current method [1]. The equations are derived from fundamental principles, unlike the empirical method in current use.

E070073  Stretching valve functionality

         [Abstract]: The essence of any valve is control, but that capability is usually limited to one specific function. Today, valvemakers are helping their customers in the chemical process industries (CPI) optimize control, through imaginative new designs, or additions or modifications to existing products. Everybody is looking to get their process running better, more efficiently, and with improved productivity," says Ron Bartosik, marketing director for Burkert Contromatic Corp.

E070074  Predict control valve noise

         [Abstract]: Noise is a byproduct of a control valve doing its job. However, sometimes the sound you hear may be a warning of cavitation damage. The noise, if loud enough, may also pose a health hazard to nearby employees. To protect workers from hearing damage, OSHA has set a noise-exposure limit of a weighted 90-dBA maximum over 8 hours [1]. So, it is important to know just how loud the noise from a control valve will be.

E070075  One-piece Packing Design Enhances Ball Valve’s Thermal Performance

        [Abstract]: Swagelok Co.(Solon, OH; www.swagelok.com) has enhanced its 40 series one-piece instrumentation ball valve, a workhorse that has served the chemical industry for over 40 years to address customer requirements for a wider range of operating temperatures and improved performances under thermal cycling conditions.

E070076  Electric Valve Actuators Remotely Control Rotary Devices

         [Abstract]: Electric valve actuators in the L75 series use state-of-the-art technology to provide remote control actuation of quarter-turn valves and other rotary devices, including on/off and modulating rotary valve applications.

E070077  Boiler-Blowdown System Captures Waste Energy

         [Abstract]: The BDHR series of boiler-blowdown heat-recovery systems are pre-engineered modules that include a plate heat-exchanger or optional shell- and tube heat exchanger, pressure-relief valve, isolation valve and mechanical or electrical level controls.

E070078  Get Back Pressure and Adjustable Relief in a Single Valve

         [Abstract]: SB Series back-pressure relief valves provide reliable opening and adjustable relief pressure from 3 to 150 psi. .Made for chemical dosing lines up to 4 in. these valves offer high flow rates, low hysteresis, and low over pressure, to fully open. When installed as a back-pressure valves, installed inline, and down stream of a pump, the back pressure below the metering pump is maintained. 

E070079  Ask the Experts Control Valves

         [Abstract]: When selecting control valves, one must consider the process, maintenance, reliability, process control and, above all, safety, requirements for the service application, as well as economic issues. Control valve technology falls into two categories- rotary and linear. The major different between them is the type and direction of movement utilized to vary the restriction of the valve. Rotary valves feature butterfly (lined and eccentric), plug (eccentric) and ball (segmented, full and notched ) designs.

E070080  Sanitary Valve Design Improves Sealing and Self Cleaning

         [Abstract]: The design of the SR-800 valve eliminates the interior spaces where liquids and foreign matter can accumulate. The valve has a unique piston design using O-rings behind a Teflon wall to significant improve sealing and self-cleaning.

E070081  Angle Valve

         [Abstract]: The A-721-B angle valve is profiled in a four-color technical datasheet. Newly introduced design features are detailed on a large cross-sectional photograph. PTFE seals and seat provide compatibility with most commodities, such as liquefied petroleum gas(LPG) and an hydrous ammonia, and seal changes are not required with changes in......

E070082  Compact Solenoid Valve Simulate Constant Flow        

         [Abstract]: This compact gradient valve simulates a constant flow by utilizing rapid cycling miniature solenoid valves to dispense gradients from multiple fluid streams in precise, repeatable proportions suitable for precision, high-purity diverting and mixing applications.

E070083  Butterfly Valves Feature Resilient Seat Design

         [Abstract]: The 410/412 series large-diameter butterfly valve features a bi-directional, bubble-tight shutoff pressure rating of 150 psi, high Cv ratings, heavy-duty construction, reliability and long service life. The 410 model, a wafer style body, is available in sizes from 24 in. to 36 in. The 412 mode浪, a double-flanged style body, is available in sizes from 24 into 48 in. Valve bodies are offered in cast and ductile iron, cast steel and stainless steel and comply with ASME/ANSI125/150 flange drilling standards.

E070084  Glass- Lined Valve is quick and Easy lo Clean

         [Abstract] :Designed for use on glass-lined reactors where batch-to-batch clean ability is important, the Clean Valve is a bottom-flush valve that is easy to operate and clean. The self--draining valve allows for a variety of functions (including sampling, gas dispersion, maintenance, etc. )without the need to interrupt the process and without dismantling the valve.

E070085  This Relief Valve is Designed for Lined-Metal Piping

         [Abstract]:This thermoplastic valve provides the rigidity and high purity required for lined pipe, eliminating the need for heavier and more costly lined-metal valves. The Teflon- diaphragm relief valve is equipped with an intrinsic flange, and features a plastic body, resulting in an on leaching, contamination free relief or bypass valve.

E070086  Actuator's New Positioner Option Enhances Control of Flow Throttling

         [Abstract] :Compact and Iow cost Apollo AE Series electric actuators are now available with a factory-installed 4-20-mA positioner that improves control in applications requiring flow throttling Ideal for quarter- turn valve and damper applications, the NEMA 4 and 4X positioner offers 4-20-mA control activated incremental modulation.

E070087  How Did this Happen?

         [Abstract] :The PiPer Alpha platform drilled for oil and processed natural gas from other platforms. A maintenance crew was working on a pump in the gas processing unit. As part of their work, they removed a relief valve from the pump's discharge line - but did NOT install a regular blind flange to cover the opening. They did not complete the repair work that shift, so they told the shift supervisor that the pump should not be used. Unfortunately, this message was not given to the operators on the next shift.

E070088  Magnetically Coupled Valve Will increase Safety and Reduce Environmental Conta mination

         [Abstract]: Conventional ball valves utilize elastomeric or mechanical stem seals to contain the transmitted medium. If these seals fail, the medium escapes to the environment. This is agrave concern if the medium is a potential environmental pollutant or health hazard. The Roetelmann design eliminates this potential by encapsulating the stem and seals in a welded canister, should the seals fail the medium cannot escape to the atmosphere. Previous designs were unable to provide an indication that the internal ball had rotated to the desired open or closed position when the valve was actuated. The inclusion of a non contact sensor has provided a technical solution for this problem. The valves are produced with a variety of construction and seal materials to meet customer requirements. Welded or flanged end connections, locking devices to meet OSHA requirements and actuators are available. Roetelmann GmbH www. icflow. com/roetelmann. php

E070089  Cut-off valve Is Key to Improved Operating Efficiency

         [Abstract] :The patented Spheri Valve is a fast-closing bulk materials cutoff valve featuring a long lasting dome assembly design. The valves can handle pressures up to 435 psi and material temperatures from—4° F to 900 °F. The Spheri Valve can be used for abrasive, friab]e, and toxic materials,　including foodstuffs, ores, detergents, ash, and many other materials. Valve sizes from 2in. to 20 in. are available, as are several end connection configurations. Water--cooled options are offered for applications involving temperatures in excess of 400° F, as are special features such as a solenoid valve and timer, and a quick exhaust valve. Clyde materials Handling www.clydematerials. com.

E070090  Pressure Relief Valves are Color-Coded

         [Abstract] :These compact metal relief valves can be pre -set from 0.5 to 150 psi with a setting accuracy of ±5%. They are available in sizes of lO-32, 1/4-28, 1/16, 1/8, 1/4,and 3/8threads, and special designs can be supplied. Brass construction is standard, with aluminum or Type 316 stainless steel optional. A plastic protective cap offers valve protection as well as color coding. Muffler caps and metal caps are also available. Industrial Specialties Mfg., Inc. www. industrialspec. com

E070091  Safety Is First and Foremost With This Valve

         [Abstract] Designed to eliminate the inherent dangers of current feeding and outlet systems used in coke manufacturing the Star gate-O-Port valve(model # 6701 a) is a 60-in. 300#, service valve with inlet flange and injectors for the feed media. It can handle temperatures up to 1,000 deg f and pressures to 400 psi.

E070092  This Flexible Multiposition Valve Can Handle Simple and Complex Applications

[Abstract]: The MW Type multiposition valves offer numerous flow configurations, port and fitting sizes, and actuation options. The preload design allows the rotor to be inspected or replaced without removing the valve from the actuator. If the valve is used with the firm' s complementary VICI microelectric actuator, alignment is always automatic.

E070093  Ball Valve Passes API 6FA Fire Test

         [Abstract]: The WOM Dual-Seal ball valve is certified fire-safe to APl 6FA, 3rd edition, in 8 -6 in, sizes, Although the valve's redundant sealing features incorporate elastomers, they are also pocketed inside the metal rings. In the event of extreme heat where the seals are burned out, metal-to-metal contact between the rings and the ball hold the pressure.

E070094  Firesafe Ball Valves Are Tested to APl 607 Specifications

         [Abstract]: Firesafe -tested and certified to APl-607 4th edition specifications. Triac ball valves offer wide specification choices and direct-mount compactness. The valve bodies are constructed from Type 316 stainless steel or carbon steel.

E070095  These Valves Can Withstand High Pressures

         [Abstract]: The high-pressure Series 20 Models H2I and B24 valves feature a redesigned guide pin that provides high seal ability at a lower cost. Standard operating pressures are up to 2,000 psi (H21) and 1,000 psi (H24), in gas or liquid. The Model H21 is a two way normally open valve with an orifice size of 0.6 mm and a CV factor of 0. 10.

E070096  Transfer Valves offer Patented Zero-leak Technology

         [Abstract]: Developed as an alternative to cast plugs that are prone to leakage, the Series JR- 33 "Zero leak" transfer valve features retractable fully covered elastomer shoes. This design reduces the operating torque and avoids dragging an 0-ring seal around the valve, thereby eliminating seal wear and damage.

E070097  Check Valve is Designed for Wastewater Applications

         [Abstract] :New to the Model 208T line of ball check valves is a 3 -in version that is ideal for the wastewater industry. The valves have a corrosion resistant PVC body, an E-Z access port, and threaded-NPT or socket--weld female by female connections.              

E070098  TZ Valve Software for Valve Tray Design and Rating

          [Abstract]: TZ Valve improves the ability of engineers to design new trays trouble Shoot problem towers and to evaluate existing for capacity changes or a new service. The accuracy of TZF exceeds currently available vendor products and process simulator utilities.

E070099  Bottom outlet valve cap

          [Abstract]:The 55-AL aluminum bottom-outlet-valve cap is the subject of this four-color technical data sheet. Lightweight (3.5lb) and easy to remove and install, the cap is used as a secondary closure on bottom outlet valves on general-purpose tank cars.

E070100   Valves

          [Abstract]:This brochure describes the manufacturer's non lubricated, metal seated Wedge plug valve, which is available in ASME Classes 150-900.It explains that the valve has a simple construction with only three major parts--the body, plug and bonnet.

E070101  System Minimizes Probability of Failure-on- Demand

          [Abstract]:Emergency shutdown valves (BSD) require periodic testing to ensure that their probability of failure-on-demand is minimized. The Drallim Smart Valve Monitoring (SVM) system automatically checks the entire portion of a safety instrumented system associated with the BSD. This includes the solenoid valve, quick exhaust valve, actuator, and the valve itself.

E070102  Glass--Lined Valve is Easy to Clean

          [Abstract]:The Clean Valve is bottom-flush valve designed for use on glass lined      reactors

where batch-to-batch The self-draining valve allows for a variety of functions, including sampling, gas dispersion, maintenance, etc., without the need to interrupt the process or dismantle the valve.

E070103  Ball Valve Family Expands to Include New Materials of Construction

          [Abstract]:Beta-PP (polypropylene) and polyvinylidene (PVDF) join polyvinyl chloride (PVC) and chlorinated PVC (CPVC) as materials of construction for the Type 546 ball valves. Beta-PP features excellent chemical resistance, high stiffness and maximum safety for impact stress and vibration.

E070104  PTFE-Lined Advanced Composite Butterfly Valve Provides Maximum Corrosion Resistance

          [Abstract]: The 710 Series butterfly valve's lightweight body is made of corrosion-resistant fiber glass reinforced cast epoxy. The body, successfully tested to 800psi, combines outstanding strength and durability with high heat resistance in corrosive environments.

E070105  Control Valve Offers Boiler Feed Pump Recirculation Solution

          [Abstract]: Designed to handle high-pressure- drop applications and ideal for system startup and boiler feed water recirculation, the Multi -Z control valve features a multistage trim design that eliminates cavitation and provides extended trim life. Certified and tested by a boiler feed- pump manufacturer, the valve also has a unique venturi outlet nozzle that provides further trim and seat protection from high velocity, cavitation and flashing.

E070106  Leak-free, Aluminum Bolted Pump Can Handle Large Fluid Volumes

          [Abstract]:The E3 aluminum bolted pump offers a leak -free design to enhance reliability and reduce downtime when pumping large volumes of fluid in applications such as bulk chemical transfer, resins transfer and wastewater treatment. The pump ensures continuous operation by employing innovative air valve system that eliminates stalling, icing, and the need to lubricate.

E070107  Easily Maintain Steam Traps with This Station

          [Abstract]: Designed for rapid and easy testing, isolation and change-out of steam t , traps, the USTS Universal Steam Trap Station combines an inlet isolation/blow down valve and an outlet isolation/test valve. The valves are 3-way, plug type units, Two USTS models are available.

E070108  These Solenoid Valves are long-Lasting

          [Abstract]:The Valve Actuation Series solenoid valves are ideally suited for applications in which solenoid valves must predictably and reliably actuate the movement of larger process valves to control the flow of liquids or gases. The series includes the 7300 and 2300 lines, which are available in both pipe-and Namur mounted models.

E070109  Ball Valve Series Features New Electric Actuator with long Service Life

          [Abstract]:The 130 Series of electrically actuated ball valves features the new EA 2l electric actuator, which is designed for a long service life of 250, 000 cycles. Equipped with integrated emergency manual override and automatic adjustment of voltage and frequency for on/off or process control applications, the EA 21 is available with universal automatic voltage adjustment of 1O0-230 V AC or a 24 AC/DC power module.

E070110   Valve offers precise sampling control

          [Abstract]: Employing a combination of both rising-stem and quarter-turn valves, the Quick Sampling Valve enables the liquid flow to be regulated during the sampling process. The flow can be regulated by applying a small amount of pressure against the ergonomically designed handle, or by using an automatically controlled quarter-turn rack-and-pinion actuator.

E070111  A low pressure air test for determining valve seat leakage

          [Abstract]: The Fluid Controls Institute's (FCI; Cleveland. OH;www. fluidcontrolsinstitute, org),  "Control Valve Seat Leakage standard (70-2) for rating the seat leak tightness of control valves is an established and widely accepted standard within the industry.

E070112   AMS Version 6.1 Asset Management Software

          [Abstract]:Version 6.1 of AMS asset management software is said to be the first to add web rowser-based access to instrument and valve information. Web access enables users to easily mornitor field devices,  view configuration and calibration information and analyze the history of a plant's field device assets.

E070113   Independently Test Your Pneumatic Actuators and Valves

          [Abstract]: Fitted between the valve and actuator the Easi-Test T device allows independent testing and operation of pneumatic actuators or valves (both declutchable and automatically  clutchable) on live systems. Operating the device involves the introduction of a lever tool, that automatically disengages the actuator from the valve stem.

E070114   Safety Pressure-Relief Valve Offers low-Maintenance System Protection

          [Abstract]: The Series 211 and Series 632 safety valves provide reliable overpressure protection in system components such as air or gas compressors, pressure vessels, piping, boilers and other process equipment. The valves feature a dual -ring design for easy adjustment, precise opening and high-volume, shore blow down, with high liquid -flow capacity.    

E070115   Fluids Handling Simplify Valve Operation with This System

          [Abstract]:The Easi -Drive portable valve-operating system is designed for use with manual valves in situations where valve size, pressure rating or work environment would demand a dedicated actuator or require a work crew. By reducing valve operation to a single person activity, the system eliminates operator fatigue and reduces the risk of injury.

E070116   Air Actuated Valves Handle Critical Applications

          [Abstract]:Based on a globe- style flow pattern with direct operation Of the valve shaft, the Series ASO air-actuated thermoplastic valves are designed for applications involving critical liquid processing. The new design is recognizable by its clear acrylic upper housing and heavy-duty spring.

E070117   Solenoid Valve Has a Long Service Life

          [Abstract]:The high-flow Skinner 71417 and 71477 four-way direct acting solenoid valves feature a specially designed high-performance operator assembly for reliable, long service life. The brass body valves have dual -frequency rated coils and can be mounted in any position.                                                              

E070118   Control Valves Selection- Rising Stem or Quarter Turn, Who is in Control?

          [Abstract]: Check out the valve choices that are available and make an informed decision on which one is right for your application.  

E070119   Specify Standpipes and Feeder Valves for Packed Beds

          [Abstract]:The use of a standpipe joined to an L--valve to feed or regulate solids in a gaseous stream is becoming increasingly popular. Equations are developed that predict flow, and ensure smooth and stable operation for feeding packed beds.

E070120  Minimize Valve Cavitation by Proper System Design

          [Abstract]:Mextbooks address cavitation of ideal fluids in traditional valves. Real world process fluids are seldom ideal, and valves do not always conform to textbook characteristics. This article deals with cavitation of difficult fluids controlled by high-recovery valves.  It is possible to design cavitation-tolerant systems if you understand the physics involved. Symptoms of cavitation include noise (it sounds like gravel flowing through the line), vibration,  loss of efficiency, and physical damage. Valves subject to cavitation erode until components rupture or leak.

E070121  Rapidly Design Safety Relief Valve Inlet Piping Systems

          [Abstract]:S