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Spotlight on: Spirax Sarco FT14 Steam Traps

Posted on Wednesday, Apr 17, 2024 in PVFundamentals

Our Comprehensive Guide to the Spirax Sarco FT14 Steam Trap

Spotlight on: Spirax Sarco FT14 Steam Trap

What are Spirax Sarco FT14 Float Thermostatic Traps?

Float & Thermostatic Steam Traps incorporates a float valve mechanism that adjusts to release condensate continuously at steam temperature, while simultaneously releasing non-condensable gases through a separate internal balanced pressure thermostatic air vent.

Common applications for this trap include all process equipment, especially those controlled by modulating temperature control valves. Additionally, it is suitable for unit heaters, air heating coils, heat exchangers, and steam main drip stations.



How does The Spirax FT14 Steam Trap work?

Traditional Float and Thermostatic Steam Traps operate by using a float mechanism to open a valve as condensate accumulates, while a thermostatic element adjusts the valve opening based on steam temperature. This ensures continuous and efficient removal of condensate and gases, in order to maintain system performance.

Watch the FT14 Steam Trap video below for an animated overview of its operation.

Below is a more detailed description of the FT14 Steam Trap’s Operation as described in the video.

Image Description of Operational Step
Spirax Sarco FT14 Steam Trap Operation Step 1
Initially the air and cool condensate enters the trap escaping via both the capsule port and the open ball trap orifice.
Spirax Sarco FT14 Steam Trap Operation Step 2
As the condensate begins to heat up, the capsule expands and closes, but the float is still in the fully open position.
Spirax Sarco FT14 Steam Trap Operation Step 3
When the steam reaches the trap the float begins to drop and this will regulate the output.
Spirax Sarco FT14 Steam Trap Operation Step 4
Condensate leaving the trap will experience a pressure drop. This drop in pressure will generate flash steam.



What options are available for Spirax Sarco FT14 Pump Trap specifications?

Spirax Sarco makes 3 models of the FT14 Steam Trap:

  • IFT14 is available in sizes 1/2" and 3/4" only, with a ductile iron body
  • FT14 is available in sizes 1/2" through 2"
  • FT14C is available in sizes 1/2" - 2" with Combination (C) Air Vent and Steam Lock Release (SLR)
Model Size Range Pressure Connection Body Material Notes
IFT14-4.5 ½" - 6150093
¾" - 6150066
65 psig (4.5 bar g) NPT Ductile Iron Spira-tec Ready Connection
FT14-4.5C ½" - 1446691
¾" - 1446991
65 psig (4.5 bar g) NPT Ductile Iron Combination (C) Air Vent and SLR (steam lock release) 
FT14HC-4.5 1" HC - 0664091 65 psig (4.5 bar g) NPT Ductile Iron
FT14HC-4.5C 1" HC - 0664391 65 psig (4.5 bar g) NPT Ductile Iron Combination (C) Air Vent and SLR (steam lock release) 
FT14-4.5 1-½" - 0666790
2" - 0668790
65 psig (4.5 bar g) NPT Cast Iron Spira-tec Ready Connection
FT14-4.5C 1-½" - 0666690
2" - 0668690
65 psig (4.5 bar g) NPT Cast Iron Combination (C) Air Vent and SLR (steam lock release) 
IFT14-10 ½" - 6150193
¾" - 6150166
145 psig (10 bar g) NPT Ductile Iron Spira-tec Ready Connection
FT14-10C ½" - 1446791
¾" - 1447091
145 psig (10 bar g) NPT Ductile Iron Combination (C) Air Vent and SLR (steam lock release) 
FT14HC-10 1" HC - 0664191 145 psig (10 bar g) NPT Ductile Iron
FT14HC-10C 1" HC - 0664491 145 psig (10 bar g) NPT Ductile Iron Combination (C) Air Vent and SLR (steam lock release) 
FT14-10 1-½" - 0666790
2" - 0668790
145 psig (10 bar g) NPT Cast Iron Spira-tec Ready Connection
FT14-10C 1-½" - 0666991
2" - 0668494
145 psig (10 bar g) NPT Cast Iron Combination (C) Air Vent and SLR (steam lock release) 
IFT14-14 ½" - 6150293
¾" - 6150266
200 psig (14 bar g) NPT Ductile Iron Spira-tec Ready Connection
FT14-14C ½" - 1446891
¾" - 1447191
200 psig (14 bar g) NPT Ductile Iron Combination (C) Air Vent and SLR (steam lock release) 
FT14HC-14 1" HC - 0664291 200 psig (14 bar g) NPT Ductile Iron
FT14HC-14C 1" HC - 0664591 200 psig (14 bar g) NPT Ductile Iron Combination (C) Air Vent and SLR (steam lock release) 
FT14-14 1-½" - 0666890
2" - 0668890
200 psig (14 bar g) NPT Cast Iron Spira-tec Ready Connection
FT14-14C 1-½" - 0666991
2" - 0668594
200 psig (14 bar g) NPT Cast Iron Combination (C) Air Vent and SLR (steam lock release) 
For complete technical information, including pressure and temperature operating conditions, and more, download the Cast/Ductile Iron Float and Thermostatic Steam Trap FT14, IFT14 and FT14C Specification Sheet.
For Capacities, download the FT14, IFT14 and FT14C Thermostatic Steam Trap Capacities Chart.


Are there FT14 Spare Parts available?

Yes, there are a variety of spare parts for FT14 Steam Traps.  Please see the descriptions below to find the Spirax FT14 spare part or parts that meet your needs. 

Spirax Sarco FT14 Spare Parts Diagram

Product Image Spare Description and link to product specs, pricing and availability
Spirax Sarco FT14 Mechanism Assembly Kit

Shown: FT14 and IFT14, 1/2" and 3/4" Main Valve Assembly

FT14 Main Valve Assembly
Spirax Sarco FT14 Air Vent Assembly

Shown: FT14 1", 1-1/2" and 2" Air Vent Assembly

FT14 Air Vent Assembly
Spirax Sarco FT14 Steam Lock Release Unit

Shown: Steam Lock Release Unit Illustration

FT14 Steam Lock Release Unit
Note the old style steam lock release assembly is also still available
Spirax Sarco FT14 Cover Gaskets

Shown: FT14 and IFT14, 1/2" and 3/4" Cover Gasket Set

FT14 Cover Gaskets
Spirax Sarco FT14 Bolts

Shown: Packet of Bolts

FT14 Cover Bolts
Spirax Sarco FT14 Float

Shown: FT14 1-1/2" and 2" Ball Float

FT14 Ball Float 

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As an authorized distributor of Spirax Sarco, Cooney Brothers stocks a wide variety of FT14 Steam Traps and Spare Parts. Shop nearly 6000 Spirax Sarco products on our website or Contact us for engineered steam solutions.