Thermostatic steam trap with noncorrosive and robust water hammer proof. When the bimetallic plates inside the trap heat up, they expand. Temperature control steam traps are bimetallic steam traps which do not follow the steam saturation curve. Hp45 traps are made of forged steel, and designed for draining high pressure, high temperature steam lines and processes. Chart 1 illustrates the truly universal operating principle behind the velan steam trap. These traps are equipped with a reinforced stainless steel insert within the body for protection against erosioncorrosion. The unique bimetallic element allows for tight shut off before superheat reaches the trap thus preventing steam loss. Bimetallic steam trap forged steel, high temperature steel, stainless steel. Like the balanced pressure trap, the liquid expansion trap is fully open when cold, giving good air discharge.
Armstrongs ab600 bimetallic steam trap is the ideal solution for applications where other trap styles are not resisting to tough operating conditions. During normal operating temperatures, steam and condensate enter the steam trap body, this causes the bimetallic plates to expand, which closes the condensate discharge valve. Bithermostatic bimetallic steam trap, with corrosion resistant regulator unaffected by waterhammer and superheated steam. It adjusts itself to changing conditions, as the increasing pressure on the valve is. Application thermostatic steam trap for automatic airventing and discharge of noncondensable gases and. Bimetallic steam trap, spirax sarco, abl5xx, for high capacity applications with quick air drainage. Bimetallic steam traps can conserve energy by discharging subcooled condensate in those applications which utilize sensible heat. Therefore, trap capacity will increase when colder condensate is in contact with the bimetal element. Spiraxsarco model smc32 bimetallic thermostatic steam traps. Ab600 bimetallic steam trap carbon steel for pressures to 41 barcapacities to 4 000 kgh description armstrongs ab600 bimetallic steam trap operates by the effect that rising temperature has on bimetallic elements. Gestra representatives in over 70 countries thermostatic steam traps bk 4546. Bimetallic trap is classified as temperature operated traps thermostatic trap and its by and large the most robust design amongst the various types of traps in common use. Spiraxsarco hp series bimetallic thermostatic steam traps. It may be necessary to increase the length of cooling leg to.
Thermostatic steam traps bk with duo stainless steel. Ub300 complete stainless steel, maintenancefree, sealed bimetallic steam traps and air eliminators are simple and robust traps, recommended for drip service. During startup, the trap is cold so the elements are flat and the valve is wide open. The installation procedure is a critical stage in the life of a steam trap and care should. They are ideal for applications such as kitchen and laundry equipment, steam tracers, hospital equipment, steam coils, steam radiators, and steam main drip stations. An ideal feature for complete trap standardization. It shows the thermostatic principal involved and how two bimetallic plates interact and provide physical movement to. No extra fittings or installation costs are required. This permits sensitive, efficient trap operation at all pressures from 1 psi to maximum, without orifice change or adjustment. Bimetallic steam traps and air eliminators bm 80 dn121.
Bimetallic steam traps can conserve energy by discharging subcooled condensate in those applications which utilise sensible heat. With a single element the temperature differential to open the steam trap would be. The forbes marshall bimetallic steam trap is a thermostatic trap designed to drain high pressure and high temperature steam lines. Able to withstand waterhammer and corrosive condensate. As the video demonstrates, bimetallic steam trap operation relies on the thermal expansion of metal plates making their operation simple and reliable. Armstrongs ab600 bimetallic steam trap operates by the effect that rising temperature has on bimetallic elements. Yarway bimetallic steam traps reliable and proven steam solutions steam trap overview yarway steam traps have a strong reputation for reliable operation and are suitable for a wide range of applications. Steam trap for thermostatic airventing with bimetallic regulator the thermostatic steam traps with corrosionresistant duo s. Emersons broad steam trap portfolio includes thermodynamic, thermostatic and mechanical steam traps for drip, tracing and process. See figure for the operation of a thermostatic steam trap. One type of thermostatic trap uses two types of metals, thus it is called a bimetallic trap. Bimetallic steam trap forged steel, high temperature steel, stainless steel thermostatic steam trap with noncorrosive and robust water hammer proof bimetallic controller automatic airventing during start up and operation of the plant non return protection with inside strainer fig. Liquid expansion traps can be adjusted to discharge at low temperatures, giving an excellent cold drain facility. Easy internal maintenance the removal of the body cover provides easy access to the bimetallic element and seat.
Ari bimetallic steam traps cona b philippopoulos s. Produced in accordance with article 3, paragraph 3 of the ped european pressure equipment directive 9723ec. Direct output or calculation and product data in pdf format. Prior to steam temperature being reached, the trap shuts off tightly. The sh series superheat steam traps adjust automatically to changing conditions. The discharge temperature can be adjusted manually, which allow these steam traps to adopt to a wide range of applica tions, where optional undercooling is possible and where sensible heat savings and flash steam reduction are desirable. If the bimetallic steam trap has to discharge against a significant backpressure, the condensate must cool to a lower temperature than is normally required before the valve will open. This bulletin should be used by experienced personnel as a guide to the installation and maintenance of the armstrong sh300, sh900, sh1500, sh1600 and sh1700 bimetallic steam traps selection or installation of equipment should always be accompanied by competent technical assistance we encourage you to contact armstrong international or your local representative if. A versatile line of high capacity steam traps, bestobells magnum can be supplied with up to 18 bimetallic elements for hot condensate flows as high as 149,000 pounds per hour. Bimetallic steam trap piping engineering knowledge base. The unique bimetallic element allows for tight shut off before superheat reaches the trap thus.
Steam trap performance assessment has traditionally been based on three basic methods. As a steam trap wears, it loses efficiency and begins to waste energy. Thermostatic steam traps liquid expansion steam traps. The most robust of all the thermostatic steam traps. This prevents free drainage of the condensate from the system before freezing can occur. Bss20 all stainless steel bimetallic steam traps and air. Spiraxsarco model smc32 carbon steel bimetallic steam trap with a 12 sweat connection for service up to 465 psi. It adjusts itself to changing conditions, as the increasing pressure on the valve is compensated by the curving of the bimetallic elements caused by the increasing temperature. They operate more efficiently longer because the inverted bucket is. Smc32 traps feature an integral flat strainer screen. If the steam supply should be shut off, the steam condenses, forming a vacuum in the heat exchanger or tracer line. Cooler temperatures cause the seat to open further. Spiraxsarco model hp45 bimetallic steam trap, with a 12 npt connection, for service up to 652 psi. If you wish to learn more about the velan steam trap line or traps in general, please visit.
The valve remains closed until the bimetallic elements cool, thus allowing the valve to crack open, vent the condensate and noncondensables, and then close again when steam temperature is reached. When steam enters the trap, it surrounds and heats the strips, which begin to expand at different rates. But armstrong inverted bucket traps last years longer than other traps. Armstrongs ab3000 bimetallic steam trap operates by the effect that rising temperature has on bimetallic elements. Steam trap performance assessment inveno engineering. Thermostatic traps are excellent for removal of air or noncondensable gases especially during startup. The stem connected to these elements moves a valve into either an open or closed position.
A sight glass specifically designed for steam trap performance assessment is also. A properly selected and installed trap will not freeze as long as steam is coming to the trap. This video illustrates how a bimetallic steam trap works. Thermostatic steam traps thermostatic steam traps, as their name implies, operate in direct response to the temperature within the trap. North america latin america india europe middle east africa china pacific rim designs, materials, weights and performance ratings are approximate and subject to change without notice. Bimetallic steam traps holland applied technologies. An extensive range of bimetallic steam traps, for applications ranging from standard steam lines to superheated steam.
The use of condensate sensible heat reduces the steam consumption. This video demonstrates how a bimetallic steam trap works. The sh300 steam trap operates on the temperature principle using two layers of bimetallic elements that have different expansion coefficients. Tk1 bimetallic traps is operated by metal strips made of alloys with different coefficients of expansion that are bonded together. It also has the ability to handle the large start up loads associated with superheat applications. With five models available for operating pressures up to 320 psig, you can add or delete elements to match your changing conditions. Bm80 series bimetallic steam traps and air eliminators are simple and robust traps, recommended for steam where condensate sensible heat can be recovered, steam tracing lines, drip points, storage tank coils, steam air venting, etc. Integrated steam trap monitoring for loss of steam and bankingup of condensate. Independent seat and shutter, and external adjustment device while running for temperature and flow discharge. Bellows traps of all actuating devices, the bellows trap most nearly approaches ideal operation and efficiency and is most economical. For the discharge of condensate subcooled between 10 and 30 k. This federal technology alert focuses on ultrasonic sound measurement equipment and equipment utilizing a fourth method based on conductivity.
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