FTT Series Float & Thermostatic Steam Trap

Brand: Watson McDaniel

FTT Series steam traps with in-line pipe connections are used for the removal of condensate and air in HVac and industrial process applications such as unit heaters, water heaters, pressing machines, heat exchangers and coils. They contain a high-quality welded stainless steel thermostatic air vent and stainless seat and mechanism.

F and T traps have excellent air handling capability, making them a better choice than Inverted Bucket traps for most process applications. For drip applications, such as draining steam mains and steam supply lines, use 1/2" or 3/4" sizes.
  • Ductile Iron has a higher pressure and temperature rating and is more resistant to shock loads than cast Iron
  • 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 and T traps discharge condensate immediately as it is formed (no condensate will back up into the system)


Enclosure, Body Material

  • Ductile Iron

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - 150#

Flange Size - 1” (DN 25)

  • 1” (DN 25) - 150#

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150#

NPT Connection

  • 1” NPT Female
  • 1/2” NPT Female
  • 1-1/2” NPT Female
  • 2” NPT Female
  • 3/4” NPT Female

  • HVac and industrial process applications

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