Steam Traps

Thermodynamic steam traps combine reliability, simplicity and efficiency of operation. With just one moving part - a hardened stainless steel disc - they give a blast discharge with clean, tight shut-off. Able to withstand superheat, waterhammer, corrosive condensate, freezing and vibration the TD trap is the first choice for removal of condensate from steam distribution systems. Range: 3/8'' to 1''; up to 3,625 psig; carbon steel, stainless steel and alloy steel; capacities up to 4,700 lb/h.

Only a Float & Thermostatic steam trap can drain condensate as quickly as it forms while at the same time removing air and other non-condensible gases which may be present at start-up or collect during operation. Condensate never backs up into the steam space; gases collect in the top of the trap and are removed through a separate integral air vent. Spirax Sarco offers the world’s most complete line of Float & Thermostatic steam traps with cast iron, ductile iron, carbon steel and stainless steel bodies for steam pressures up to 465 psi and condensate loads up to 300,000 lb/h.

Balanced pressure thermostatic steam traps adjust automatically to varying steam pressures and have excellent air venting characteristics during plant start-up and during normal operation. They have large discharge capacities for their size and the robust design of the internals gives a good life expectancy. Range: 1/4'' to 1''; up to 600 psig; brass, cast steel and stainless steel; capacities up to 11,000 lb/h.

Inverted bucket traps are the most robust type of the mechanical traps and will resist waterhammer. Also, with a check valve fitted in the inlet, they can be used with superheated steam. They are available with a wide selection of valve orifices for precise pressure and load matching. Range: 1/2'' to 2''; up to 900 psig; cast iron, cast steel, alloy steel and stainless steel; capacities up to 20,000 lb/h. Repairable, sealed and universal connector styles available.

The bimetallic steam traps can conserve energy by discharging sub-cooled condensate in those applications which can utilize sensible heat. They are the most robust of all the thermostatic steam traps, able to withstand waterhammer and corrosive condensate. Range: 1/2'' to 4''; up to 3045 psig; cast steel, alloy steel and stainless steel. Capacities up to 400,000 lb/h.

This is one of the simplest thermostatic traps. An oil filled element expands when heated to close the valve against the seat. The adjustment allows the temperature of the trap discharge to be altered between 60°C and 100°C, which makes it ideally suited as a device to get rid of large quantities of air and cold condensate at start-up.

Any steam management system should include steam trap monitoring as a basic tool to reduce waste, costs and environmental liability. Whether this is conducted manually or automatically will depend on the size of the site, the number of traps, the number of personnel, and the urgency of repair.

The Spirax Sarco USTS II series of steam trap stations have been designed to be a complete trap station in a very compact size. Offering a range of forged steel manifolds designed for steam tracing applications.