The Spirax Sarco FTS14 is a 316 austenitic stainless steel float steam trap with an integral automatic air vent. It is suitable for removing condensate and air from steam equipment during start-up and operation. The body is rated PN25, with a maximum allowable temperature of 300°C. Threaded, socket weld, flanged and hygienic clamp connections are available, with an optional built-in strainer. It can be used for condensate drainage from steam heat transfer equipment and clean steam-related equipment.
FTS14 Float and Thermostatic Steam Trap, 3/4 in Angle | Spirax Sarco
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FTS14 316 Stainless Steel Float Steam Trap | Spirax Sarco
316 stainless steel float steam trap for condensate drainage from heat transfer equipment, with an optional built-in strainer.
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Specifications
- Product Type
- Float and thermostatic steam trap
- Air Venting Function
- Built-in automatic air vent
- Body Material
- Austenitic stainless steel 316, EN 10213-4(1.4408), ASTM A351 CF8M
- Seal Material
- Grey Viton, compliant with FDA CFR 21, P177, S2600
- Body Design Pressure
- PN25
- Maximum Allowable Pressure
- 25 bar g
- Maximum Allowable Temperature
- 300°C
- Operating Temperature Range
- -20°C to 225°C
- Maximum Cold Hydraulic Test Pressure
- 37.5 bar g
- Maximum Differential Pressure
- 4.5 bar, 10 bar, or 14 bar, configured according to the pressure range
- Connection Type
- BSP or NPT threaded connection, socket weld, flanged connection, or sanitary clamp connection
- Connection Size
- 1/2 in, 3/4 in, 1 in, DN15, DN20, DN25
- Thread Standard
- BSP compliant with BS 21 and DIN 2999; NPT compliant with ANSI B 1.20.1
- Socket Weld Standard
- ANSI B 16.11, BS 3799 Class 3000, DIN 3239
- Flange Standard
- ANSI B 16.5 150Lb and 300Lb; EN 1092/PN16/25
- Installation Orientation
- Horizontal or vertical installation, with flow direction configurable as right-to-left, left-to-right, upward, or downward
- Optional Strainer Function
- Built-in stainless steel strainer available as an option
- Optional Temperature Sensor Port
- The cover can be drilled and tapped with a 1/8 in BSP threaded port
- Certificates
- EN 10204 3.1 certificate available
Application scenarios
Condensate Drainage from Steam Heat Exchangers
Used at the condensate outlet of steam heat exchangers to remove condensate and air, maintaining effective heat transfer in process equipment. The valve can be adapted to different flow directions and installation arrangements by rotating the cover.
Air Venting and Condensate Drainage During Steam Equipment Start-up and Operation
Used to remove condensate and air during steam equipment start-up and operation. The built-in automatic air vent reduces the adverse effect of air on steam heat transfer and helps process equipment maintain operating efficiency.
Condensate Drainage from Clean Steam Equipment
Suitable for condensate drainage and air removal from clean steam equipment. The product features a 316 austenitic stainless steel body, sealing materials compliant with FDA CFR 21 requirements, and an optional sanitary clamp connection.
Selection points
316 Stainless Steel Body
The body is made of 316 austenitic stainless steel, corresponding to the EN 10213-4(1.4408) and ASTM A351 CF8M material standards.
Multi-directional Installation and Flow Configuration
Supports horizontal or vertical installation, with flow direction configurable as right-to-left, left-to-right, upward, or downward to suit different piping arrangements.
Multiple Piping Connection Options
Available with BSP or NPT threads, socket weld, flanged, and sanitary clamp connections, covering 1/2 in, 3/4 in, 1 in, and DN15 to DN25 connection sizes.
Configuration by Maximum Differential Pressure
The maximum differential pressure can be configured for 4.5 bar, 10 bar, or 14 bar ranges. Select the corresponding version according to the actual system differential pressure.
Built-in Automatic Air Vent and Optional Strainer
The product includes a built-in automatic air vent and can be configured with a built-in stainless steel strainer.
Optional Temperature Sensor Port
The cover can be drilled and tapped with a 1/8 in BSP threaded port for a temperature sensor connection.
Installation & maintenance notes
Install According to the Selected Orientation and Flow Direction
The FTS14 can be installed horizontally or vertically, with flow configured as right-to-left, left-to-right, upward, or downward. During installation, ensure that the site piping flow direction and installation orientation match the selected valve configuration.
FAQ
How does the FTS14 float and thermostatic steam trap work?
The FTS14 uses a float structure made of austenitic stainless steel. Changes in float position control condensate discharge and the opening of the air vent, enabling condensate drainage and air removal so that equipment can operate at maximum efficiency.
What connection types are available for the FTS14 series, and how should they be selected?
Sizes include 1/2", 3/4", and 1", with BSP/NPT threaded, socket weld, flanged, and sanitary clamp connections. The specific connection type should be selected according to the site piping interface, pressure rating, and hygienic requirements.
What are the pressure and temperature design limits of this valve?
The body design condition is PN25, the maximum allowable temperature is 300°C, the maximum operating temperature is 225°C, the minimum operating temperature is -20°C, and the maximum cold hydraulic test pressure is 37.5 bar g. The specific operating temperature range must be confirmed according to the actual operating conditions.
Does the FTS14 include a built-in air vent, and how do the options affect installation?
The standard version includes a built-in automatic air vent. Options also include a built-in strainer, a manual regulating needle valve to prevent steam locking, and a cover drilled for a temperature sensor. Installation must be confirmed and completed according to the selected options and piping configuration.
How should the FTS14 size and connection type be determined for specific process conditions?
Select the appropriate size and connection type according to the system process pressure, fluid temperature, and piping standard. Refer to the illustrated dimensional and connection options table for comparison. The specific configuration must be confirmed according to the actual model and application conditions.