FTE / FTES Float & Thermostatic Steam Traps

FTE / FTES Float & Thermostatic Steam Traps are high capacity steam traps specifically designed to remove condensate and air from HVAC and industrial process applications with extremely high condensate load requirements. Examples include reboilers, absorption chillers, large air-handling coils, large heat exchangers and other large process equipment. It is available with a ductile iron body and contains a high quality welded stainless steel thermostatic air vent and stainless mechanism. F&T traps have excellent air-handling capability, making them a better choice than Inverted Bucket traps for most process applications.

  • Ductile Iron has a higher pressure and temperature rating and is more resistant to shock loads than Cast Iron
  • Cast Steel Body will allow operating pressures and temperatures up to 300 PSIG and 450 °F
  • High capacity steam trap for draining large process equipment (over 100,000 lbs/hr)
  • All stainless steel internals with hardened seat and wear parts
  • In-line repairability is simplified by having all internals attached to the cover
  • Welded stainless steel thermostatic air vent resists shock from waterhammer. Live orifice air vent is available for superheated applications
  • Excellent air handling capability allows air to be discharged rapidly so steam can enter the system quickly during start-up
  • F&T traps discharge condensate immediately as it is formed (no condensate will back up into the system)
ModelSizeTypeBody MaterialMax PMO (psig)Max Capacity @ Max PMO (psig)
FTE-020-17-N 2"NPTIron2026000
FTE-050-17-N 2"NPTIron5052500
FTE-050-18-N 2 1/2"NPTIron5082100
FTE-125-18-N 2 1/2"NPTIron125105000
FTE-200-16-N 2 1/2"NPTIron20011900
FTE-200-17-N 2"NPTIron20029200
FTE-200-18-N 2 1/2"NPTIron20074000


FTE / FTES Float & Thermostatic Steam Traps have Ductile Iron Bodies and FTES-Series have Cast Steel Bodies. These Float and Thermostatic Steam Traps are intended for use on steam process applications with very high condensate load requirements. Examples include re-boilers, absorption chillers, large air-handling equipment and heat exchangers. They contain a high quality welded stainless steel thermostatic air vent and all stainless internals. F&T traps have excellent air-handling capability, making them the preferred choice for most process applications.

Float and thermostatic traps contain a float and seat mechanism with a separate thermostatic element which work together to remove both condensate and air from the steam system. The float, which is attached to a valve, rises and opens the valve when condensate enters the trap. This allows the condensate to discharge. Air is discharged through the thermostatic air vent to the outlet side of the trap. Steam entering the trap causes the thermostatic element to expand, closing the air vent and trapping the steam.