Produced in accordance with article 3, paragraph 3 of the ped european pressure equipment directive 9723ec. In free float type steam traps, the forces of the inlet pressure and the back pressure act in opposing directions, so free float traps are able to operate normally even under 90% back pressure. Sealed bimetallic steam trap for use with pipeline connectors usm21. An extensive range of bimetallic steam traps, for applications ranging from standard steam lines to superheated steam. This article on bimetallic steam trap provides information of various aspects of this stem trap such as operating principle, design variations, advantages and disadvantages. Bimetallic repairable steam trap, type ab3000 in stainless steel, with integral strainer. They are ideal for applications such as kitchen and laundry equipment, steam tracers, hospital equipment, steam coils, steam radiators, and steam main drip stations. For the discharge of condensate subcooled between 10 and 30 k. The usm21 is a preset and maintenance free sealed bimetallic steam trap manufactured in stainless steel.
The unique bimetallic element allows for tight shut off before superheat reaches the trap thus. Find supplier datasheets for steam traps on globalspec. This federal technology alert focuses on ultrasonic sound measurement equipment and equipment utilizing a fourth method based on conductivity. 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. 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. Available as ball float, bimetallic, thermostatic or thermodynamic steam traps with different characteristics. Do timebased maintenance for the normal working of steam trap. Single freefloating stainless steel hardened rc 58 min. 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.
Install steam trap for each heating equipment in case cause influence each other. This prevents free drainage of the condensate from the system before freezing can occur. Positive closing for long periods on dry superheated steam lines has enormous advantages in power plant and marine service. Thermostatic steam traps bk with duo stainless steel.
When installed in any position with a suitable pipeline. They operate more efficiently longer because the inverted bucket is the most reliable steam trap operating principle known. Armstrongs ab600 bimetallic steam trap is the ideal solution for applications where other trap styles are not resisting to tough operating conditions. Bellows traps of all actuating devices, the bellows trap most nearly approaches ideal operation and efficiency and is most economical. Tk1 bimetallic traps is operated by metal strips made of alloys with different coefficients of expansion that are bonded together. Confirm the note for selecting steam trap such as safety factor to obtain the. It utilizes bimetallic strips of dissimilar metals stacked together in pairs. This permits sensitive, efficient trap operation at all pressures from 1 psi to maximum, without orifice change or adjustment. This video demonstrates how a bimetallic steam trap works. Armstrongs developments and improvements in steam trap design and function. Each type will be discussed in detail in this section. They operate more efficiently longer because the inverted bucket is. As condensate is discharged below steam temperature, waterlogging of the steam space will occur unless the steam trap is fitted at the end of a long cooling leg, typically 1 3 m of unlagged pipe. Sealed bimetallic steam trap for use with pipeline connectors description the usm32 is a preset and maintenance free sealed bimetallic steam trap manufactured in stainless steel.
An ideal feature for complete trap standardization. Bimetallic steam trap performance parameter material list of main part. Ub300 complete stainless steel, maintenancefree, sealed bimetallic steam traps and air eliminators are simple and robust traps, recommended for drip service. Design and materials are subject to change without notice. This comprehensive range of steam traps is based on a unique design that was developed and patented by a. As a steam trap wears, it loses efficiency and begins to waste energy. The bimetallic trap offers resistance to water hammer. Jan 10, 20 this video demonstrates how a bimetallic steam trap works. Minimum maintenance and a long troublefree service life. If you wish to learn more about the velan steam trap line or traps in general, please visit. When steam enters the trap, it surrounds and heats the strips, which begin to expand at different rates. Spiraxsarco bimetallic thermostatic steam traps conserve energy by discharging subcooled condensate in those applications which utilize sensible heat.
Easy internal maintenance the removal of the body cover provides easy access to the bimetallic element and seat. With five models available for operating pressures up to 320 psig, you can add or delete elements to match your changing conditions. A steam trap is a kind of automatic valve that discharges condensate generated during processes and in steam transport lines while preventing any steam from escaping trapping the steam. Spiraxsarco model smc32 carbon steel bimetallic steam trap with a 12 sweat connection for service up to 465 psi. Steam trap performance assessment has traditionally been based on three basic methods. So, depending on the application, air is another fluid that usually.
Steam trap for thermostatic airventing with bimetallic regulator the thermostatic steam traps with corrosionresistant duo s. Therefore, install a vacuum breaker between the equipment being drained and the trap. Piped through 360 universal connector or trap valve station tvs. 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.
Positive closing every velan trap closes tightly on saturated steam temperature. Application thermostatic steam trap for automatic airventing and discharge of noncondensable gases and steamair mixtures from steam lines. An orifice plate steam trap is a relatively simple condensate removal device. Usm32 sealed bimetallic steam trap for use with pipeline connectors. As the system increases in temperature and pressure, the trap s stacked nickelchrome bimetallic elements start to expand, allowing for tight shutoff as steam reaches the trap, thus preventing steam loss. If there is not gravity drainage through the trap to the return line, the trap and. Steam traps are automatic valves designed to remove condensate from steam lines, but prevent steam loss by trapping the steam. Ab3000 bimetallic steam trap stainless steel for pressures to 22 barcapacities to 1 800 kgh description armstrongs ab3000 bimetallic steam trap operates by the effect that rising temperature has on bimetallic elements. It is designed for steam pressures up to 32 bar and applications such as steam tracing and mains drips. These traps increase the operating efficiency of the equipment by enabling steam to contact all of the heat transfer surface area. Free float steam traps for high temperature, high pressure use. Steam trapping and steam tracing equipment all dimensions and weights are approximate.
It also has the ability to handle the large start up loads associated with superheat applications. Ab3000 series bimetallic steam traps armstrong inc. 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 steam traps data sheets engineering360. Bimetallic steam traps are not suitable for fitting to process plants where immediate condensate removal. Bimetallic superheat steam traps armstrong international. Bimetallic steam traps and air eliminators bm 80 dn121.
Once the temperature drops to a predefined range, typically 50f to 100f below normal operating temperatures range is adjustable, the bimetallic plates contract, opening the valve and. Sib30, sib30h and sib45 sealed inverted bucket steam traps. Thermostatic steam traps liquid expansion steam traps. Operates on superheated steam unaffected by water hammer and vibration general application ub300 complete stainless steel, maintenance free, sealed bimetallic steam traps and air eliminators are simple and robust traps, recommended for drip service, steam tracing and other applications where condensate sensible heat can be recovered. Usm21 sealed bimetallic steam trap for use with pipeline connectors. Bimetallic steam trap the piping engineering world. It uses the fact that temperature of steam is higher than condensate.
Smc32 traps feature an integral flat strainer screen. A free float steam trap can immediately discharge condensate when it enters the trap body, thus preventing condensate buildup and reducing the risk of water hammer in the steam distribution line. These factors are all important in todays energy conscious world. Ari valve corporation stream traps ball float, bimetallic, thermostatic or thermodynamic steam traps, aricona r. Air is usually present for some period of time in a steam line, either during startup andor operation. Direct output or calculation and product data in pdf format. Oct 31, 2014 bimetallic steam traps are used in many industrial and commercial applications in the chemical processing, energy production, food processing, hvac, pulp and paper, mining, petrochemical and. This makes them ideally suited for processes with closed condensate recovery systems. Integrated nonreturn function, strainer inside, depending on the different product groups in dn 1550 100. Bimetallic thermostatic steam traps are primarily used to control the release of condensate so that its sensible heat can be utilised and energy losses caused by flash steam on discharge reduced. Bimetallic steam traps are not suitable for fitting to process plants where immediate condensate removal is vital for maximum output to be achieved. Bimetallic steam traps can conserve energy by discharging subcooled condensate in those applications which utilize sensible heat.
Able to withstand waterhammer and corrosive condensate. It is designed for steam pressures up to 21 bar and applications such as. Ab3000 bimetallic steam trap stainless steel for pressures to 22 barcapacities to 1 800 kgh description. Maximum allowable back pressure 99% of inlet pressure. The use of condensate sensible heat reduces the steam consumption. It adjusts itself to changing conditions, as the increasing pressure on the valve is compensated by the curving of the. Steam traps are automatic valves that release condensate from a steam space while preventing the loss of live steam.
Thermostatic, mechanical, thermodynamic and drain orifice. Steam traps can be divided into three general categories based on their operation mechanism. Applications of different types of steam traps tlv a. These traps are very robust and are able to withstand water hammer and corrosive condensate. Bimetallic steam traps holland applied technologies. Bimetallic steam traps have the ability to handle large startup loads. Bimetallic steam trap piping engineering knowledge base. A sight glass specifically designed for steam trap performance assessment is also.
The most robust of all the thermostatic steam traps. A steam trap is basically an automatic valve which discharges condensate, undesirable air and noncondensibles from a system while trapping, or holding in, steam. The installation procedure is a critical stage in the life of a steam trap and care should. The interior of valve and pipeline must be free from foreign particles. The following table contains 15 criteria for steam trap selection based on the operation of the plant and the speci. Spiraxsarco model smc32 bimetallic thermostatic steam traps. Steam trap performance assessment inveno engineering. In the closed position, the condensate valve will allow the buildup of condensate in the steam 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. Usm32 purgeur thermostatique bimetal monobloc connexions pour connecteur pc. Bimetallic steam traps are used in many industrial and commercial applications in the chemical processing, energy production, food processing, hvac, pulp and paper, mining, petrochemical and. Bimetallic steam trap forged steel, high temperature steel, stainless steel. Bss20 all stainless steel bimetallic steam traps and air.
How a bimetallic thermostatic steam trap works on startup, the bimetallic. The original velan steam trap velan is pleased to announce that we have reacquired the velan universal steam trap line produced for 15 years by plenty steam products. Usm32 sealed bimetallic steam trap for use with pipeline. The period of waiting to start a process is reduced to minutesthere is no air binding, waterlogging, or steam locking to delay equipment warm up. It adjusts itself to changing conditions, as the increasing pressure on the valve is. Although both types of thermostatic traps close when exposure to steam expands the bimetallic element or bellows, there are important. But armstrong inverted bucket traps last years longer than other traps. At startup, the trap is cold and the bimetallic element is relaxed. Bimetallic steam traps with thermal controller are used for the drainage of industrial steam. Application thermostatic steam trap for automatic airventing and discharge of noncondensable gases and steam air mixtures from steam lines.
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