Renewable Energy

Piston steam traps are in the thermodynamic trap category that are actuated by the principles of thermodynamics and fluid dynamics. Thermodynamic steam traps are phase detectors in that they can discriminate between liquids and gases, but they do not discriminate between steam and air or other non-condensable gases. Therefore, they have a reduced ability to bleed-off those gases. Small amounts of steam may also be passed. Piston steam traps utilize the heat energy in hot condensate, and the kinetic energy in steam, to open and close a valve. Like disc steam traps, they are phase detectors sensing the difference between a liquid and gas or vapor. During initial start-up, pressure created by the cold condensate lifts the piston valve, allowing discharge of condensate. During this phase, the control chamber pressure is low because the second or control orifice, can discharge more condensate than can be supplied to the control chamber through the first orifice. When the temperature of the ...

Disc steam traps are in the thermodynamic trap category that are actuated by the principles of thermodynamics and fluid dynamics. Thermodynamic steam traps are phase detectors in that they can discriminate between liquids and gases, but they do not discriminate between steam and air or other non-condensable gases. Therefore, they have a reduced ability to bleed-off those gases. Small amounts of steam may also be passed. Disc steam traps utilize the heat energy in hot condensate and the kinetic energy in steam to open and close a valve disc. They are phase detectors, sensing the difference between liquid and gas or vapor. Disc steam trap is very lightweight and compact and contains only one moving part, the disc itself, these small devices are rugged. During initial start-up, pressure created by cold condensate pushes the valve disc off the seating surface. This uncovers the inlet and outlet ports allowing discharge. As condensate reaches the inlet port (a restriction), it experiences a...

Closed Float Steam Traps are mechanical steam traps actuated by a float responding to changes in condensate level. Mechanical steam traps are density detectors and therefore also have difficulties venting air and non-condensable gases. Mechanical steam traps employ either an open or a closed float to actuate a valve. Closed float mechanical steam traps usually employ a secondary thermostatic air vent which allows the trap to discharge air rapidly. The air vent, of course, is an extra component which can fail open, causing the loss of steam, or fail closed and prevent the trap from discharging condensate. Closed float steam traps are usually large in physical size. This, combined with a float that is fragile to external pressure, and the continuous presence of condensate within the trap, make this device unsuitable for high pressure applications or installations where water hammer or freeze-ups can be expected. On the positive side, mechanical steam traps respond to changes in condensat...

Lever steam traps are in the thermodynamic trap category that are actuated by the principles of thermodynamics and fluid dynamics. Thermodynamic steam traps are phase detectors in that they can discriminate between liquids and gases, but they do not discriminate between steam and air or other non-condensable gases. Therefore, they have a reduced ability to bleed-off those gases. Small amounts of steam may also be passed. Lever steam traps are a variation of the thermodynamic piston trap. They operate on the same principle as piston steam traps, but with a lever action rather than a reciprocating piston action. When the lever is closed, there is a limited flow through the annulus between the inlet valve and its seat (first orifice) which then enters the control chamber and flows out through the second or control orifice. Incoming condensate pushes the lever upward with a tilting motion and full flow goes under it and out the discharge port. Condensate flowing past the inlet seat (a rest...

Bimetallic Steam Traps are thermostatic steam traps actuated by temperature sensitive devices, responding to changes in condensate temperature. Thermostatic steam traps respond to changes in temperature and therefore discriminate very well between steam and cooler non-condensable gases. They can rapidly purge air from a system, especially on a cold start-up, and can be installed in various positions. Most frequently, actuation is by means of a bimetallic element or a bellows-like capsule filled with a vaporizing liquid. Bimetallic actuated devices are characterized by their high resistance to damage from freeze-ups, water hammer and superheat. They are relatively small in size and lend themselves to high pressure designs. The condensate discharge temperature, however, does not follow the saturation curve very well, and the bimetallic elements are subject to corrosion with some reduction in closing force over time. Bellows actuated steam traps, on the other hand, discharge condensate at...

Inverted Bucket Steam Traps are mechanical steam traps actuated by a float responding to changes in condensate level. Mechanical steam traps are density detectors and therefore also have difficulties venting air and non-condensable gases. Mechanical steam traps employ either an open or a closed float to actuate a valve. Closed float mechanical steam traps usually employ a secondary thermostatic air vent which allows the trap to discharge air rapidly. The air vent, of course, is an extra component which can fail open, causing the loss of steam, or fail closed and prevent the trap from discharging condensate. Closed float steam traps are usually large in physical size. This, combined with a float that is fragile to external pressure, and the continuous presence of condensate within the trap, make this device unsuitable for high pressure applications or installations where water hammer or freeze-ups can be expected. On the positive side, mechanical steam traps respond to changes in conden...

Orifice Steam Traps are thermostatic steam traps actuated by temperature sensitive devices, responding to changes in condensate temperature. Thermostatic steam traps respond to changes in temperature and therefore discriminate very well between steam and cooler non-condensable gases. They can rapidly purge air from a system, especially on a cold start-up, and can be installed in various positions. Most frequently, actuation is by means of a bimetallic element or a bellows-like capsule filled with a vaporizing liquid. Bimetallic actuated devices are characterized by their high resistance to damage from freeze-ups, water hammer and superheat. They are relatively small in size and lend themselves to high pressure designs. The condensate discharge temperature, however, does not follow the saturation curve very well, and the bimetallic elements are subject to corrosion with some reduction in closing force over time. Bellows actuated steam traps, on the other hand, discharge condensate at a ...

Liquid or Solid Expansion Steam Traps (Wax Capsule Steam Trap) are thermostatic steam traps actuated by temperature sensitive devices, responding to changes in condensate temperature. Thermostatic steam traps respond to changes in temperature and therefore discriminate very well between steam and cooler non-condensable gases. They can rapidly purge air from a system, especially on a cold start-up, and can be installed in various positions. Most frequently, actuation is by means of a bimetallic element or a bellows-like capsule filled with a vaporizing liquid. Bimetallic actuated devices are characterized by their high resistance to damage from freeze-ups, water hammer and superheat. They are relatively small in size and lend themselves to high pressure designs. The condensate discharge temperature, however, does not follow the saturation curve very well, and the bimetallic elements are subject to corrosion with some reduction in closing force over time. Bellows actuated steam traps, on...

Bellows Steam Traps are thermostatic steam traps actuated by temperature sensitive devices, responding to changes in condensate temperature. Thermostatic steam traps respond to changes in temperature and therefore discriminate very well between steam and cooler non-condensable gases. They can rapidly purge air from a system, especially on a cold start-up, and can be installed in various positions. Most frequently, actuation is by means of a bimetallic element or a bellows-like capsule filled with a vaporizing liquid. Bimetallic actuated devices are characterized by their high resistance to damage from freeze-ups, water hammer and superheat. They are relatively small in size and lend themselves to high pressure designs. The condensate discharge temperature, however, does not follow the saturation curve very well, and the bimetallic elements are subject to corrosion with some reduction in closing force over time. Bellows actuated steam traps, on the other hand, discharge condensate at a ...

Open Bucket Steam Traps are mechanical steam traps actuated by a float responding to changes in condensate level. Mechanical steam traps are density detectors and therefore also have difficulties venting air and non-condensable gases. Mechanical steam traps employ either an open or a closed float to actuate a valve. Closed float mechanical steam traps usually employ a secondary thermostatic air vent which allows the trap to discharge air rapidly. The air vent, of course, is an extra component which can fail open, causing the loss of steam, or fail closed and prevent the trap from discharging condensate. Closed float steam traps are usually large in physical size. This, combined with a float that is fragile to external pressure, and the continuous presence of condensate within the trap, make this device unsuitable for high pressure applications or installations where water hammer or freeze-ups can be expected. On the positive side, mechanical steam traps respond to changes in condensate...