With five models available for operating pressures up to 320 psig, you can add or delete elements to match your changing conditions. This video illustrates how a bimetallic steam trap works. The unique bimetallic element allows for tight shut off before superheat reaches the trap thus preventing steam loss. Armstrongs ab3000 bimetallic steam trap operates by the effect that rising temperature has on bimetallic elements. Armstrongs ab600 bimetallic steam trap is the ideal solution for applications where other trap styles are not resisting to tough operating conditions. Able to withstand waterhammer and corrosive condensate. It adjusts itself to changing conditions, as the increasing pressure on the valve is. The unique bimetallic element allows for tight shut off before superheat reaches the trap thus. Bellows traps of all actuating devices, the bellows trap most nearly approaches ideal operation and efficiency and is most economical. Like the balanced pressure trap, the liquid expansion trap is fully open when cold, giving good air discharge. An extensive range of bimetallic steam traps, for applications ranging from standard steam lines to superheated steam. A sight glass specifically designed for steam trap performance assessment is also. An ideal feature for complete trap standardization.
Tk1 bimetallic traps is operated by metal strips made of alloys with different coefficients of expansion that are bonded together. Spiraxsarco model smc32 bimetallic thermostatic steam traps. Bimetallic steam traps can conserve energy by discharging subcooled condensate in those applications which utilize sensible heat. 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.
For the discharge of condensate subcooled between 10 and 30 k. Spiraxsarco model hp45 bimetallic steam trap, with a 12 npt connection, for service up to 652 psi. Steam trap performance assessment has traditionally been based on three basic methods. Thermostatic traps are excellent for removal of air or noncondensable gases especially during startup. Thermostatic steam traps bk with duo stainless steel. The installation procedure is a critical stage in the life of a steam trap and care should. Hp45 traps are made of forged steel, and designed for draining high pressure, high temperature steam lines and processes. 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. Independent seat and shutter, and external adjustment device while running for temperature and flow discharge.
Thermostatic steam traps thermostatic steam traps, as their name implies, operate in direct response to the temperature within the trap. Gestra representatives in over 70 countries thermostatic steam traps bk 4546. 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. Easy internal maintenance the removal of the body cover provides easy access to the bimetallic element and seat.
It also has the ability to handle the large start up loads associated with superheat applications. No extra fittings or installation costs are required. 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. Emersons broad steam trap portfolio includes thermodynamic, thermostatic and mechanical steam traps for drip, tracing and process. Bimetallic steam traps can conserve energy by discharging subcooled condensate in those applications which utilise sensible heat. Armstrongs ab600 bimetallic steam trap operates by the effect that rising temperature has on bimetallic elements.
Bimetallic steam traps holland applied technologies. 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. See figure for the operation of a thermostatic steam trap. Thermostatic steam trap with noncorrosive and robust water hammer proof. Liquid expansion traps can be adjusted to discharge at low temperatures, giving an excellent cold drain facility. These traps are equipped with a reinforced stainless steel insert within the body for protection against erosioncorrosion. One type of thermostatic trap uses two types of metals, thus it is called a bimetallic trap. Yarway b302 and b303 bimetallic steam traps installation, operation and maintenance instructions vciom11504en 1903 general these instructions must be carefully read before any work involving products supplied by yarway is undertaken. Spiraxsarco hp series bimetallic thermostatic steam traps. 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. 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. As the video demonstrates, bimetallic steam trap operation relies on the thermal expansion of metal plates making their operation simple and reliable. The use of condensate sensible heat reduces the steam consumption.
If you wish to learn more about the velan steam trap line or traps in general, please visit. Bss20 all stainless steel bimetallic steam traps and air. The stem connected to these elements moves a valve into either an open or closed position. The most robust of all the thermostatic steam traps. Ari bimetallic steam traps cona b philippopoulos s. Bimetallic steam trap forged steel, high temperature steel, stainless steel. But armstrong inverted bucket traps last years longer than other traps. This permits sensitive, efficient trap operation at all pressures from 1 psi to maximum, without orifice change or adjustment. Integrated steam trap monitoring for loss of steam and bankingup of condensate.
The sh300 steam trap operates on the temperature principle using two layers of bimetallic elements that have different expansion coefficients. 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. Cooler temperatures cause the seat to open further. Bimetallic steam traps and air eliminators bm 80 dn121. It shows the thermostatic principal involved and how two bimetallic plates interact and provide physical movement to.
Smc32 traps feature an integral flat strainer screen. Bimetallic steam trap, spirax sarco, abl5xx, for high capacity applications with quick air drainage. Each segment acts consecutively, covering the complete operating pressure range without adjustment or orifice change. It may be necessary to increase the length of cooling leg to. Spiraxsarco model smc32 carbon steel bimetallic steam trap with a 12 sweat connection for service up to 465 psi. The sh series superheat steam traps adjust automatically to changing conditions. They are ideal for applications such as kitchen and laundry equipment, steam tracers, hospital equipment, steam coils, steam radiators, and steam main drip stations. Prior to steam temperature being reached, the trap shuts off tightly. It utilizes bimetallic strips of dissimilar metals stacked together in pairs. Direct output or calculation and product data in pdf format. With a single element the temperature differential to open the steam trap would be.
They operate more efficiently longer because the inverted bucket is. This prevents free drainage of the condensate from the system before freezing can occur. This federal technology alert focuses on ultrasonic sound measurement equipment and equipment utilizing a fourth method based on conductivity. 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. 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.
This video demonstrates how a bimetallic steam trap works. Application thermostatic steam trap for automatic airventing and discharge of noncondensable gases and. As a steam trap wears, it loses efficiency and begins to waste energy. 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. When steam enters the trap, it surrounds and heats the strips, which begin to expand at different rates. Chart 1 illustrates the truly universal operating principle behind the velan steam trap. Bithermostatic bimetallic steam trap, with corrosion resistant regulator unaffected by waterhammer and superheated steam. Steam trap for thermostatic airventing with bimetallic regulator the thermostatic steam traps with corrosionresistant duo s. At startup, the trap is cold and the bimetallic element is relaxed.
If the steam supply should be shut off, the steam condenses, forming a vacuum in the heat exchanger or tracer line. Temperature control steam traps are bimetallic steam traps which do not follow the steam saturation curve. Ub300 complete stainless steel, maintenancefree, sealed bimetallic steam traps and air eliminators are simple and robust traps, recommended for drip service. Steam trap performance assessment inveno engineering. When the bimetallic plates inside the trap heat up, they expand. The forbes marshall bimetallic steam trap is a thermostatic trap designed to drain high pressure and high temperature steam lines. Thermostatic steam traps liquid expansion steam traps. Therefore, trap capacity will increase when colder condensate is in contact with the bimetal element. Bimetallic steam trap piping engineering knowledge base. Application thermostatic steam trap for automatic airventing and discharge of noncondensable gases and steamair mixtures from steam lines.
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