Spirax-Sarco 50927 Trap

The Spirax Sarco FT-15 Float and Thermostatic Steam Trap is a heavy-duty cast iron steam trap designed for 1" NPT piping configurations. This F&T trap features a robust stainless steel internal float mechanism and a balanced pressure thermostatic air vent, ensuring immediate discharge of air and non-condensable gases during cold startups. Engineered for low-pressure steam heating systems, it maintains a continuous discharge capacity regardless of pressure fluctuations, preventing condensate backup in heat exchangers, unit heaters, and blast coils. The parallel piping orientation allows for simplified maintenance without breaking pipe connections. With a maximum operating pressure of 15 psig, this industrial steam trap provides consistent condensate management and thermal efficiency in mechanical rooms. The rugged construction resists water hammer and ensures reliable steam system performance in demanding commercial environments.

Technical Benefits

• Continuous Condensate Discharge: The mechanical float operates instantly upon the presence of condensate, ensuring high heat transfer efficiency.
• Integrated Air Venting: The internal thermostatic bellows eliminate air binding and improve system startup times.
• Inline Maintainability: Designed with a bolt-on cover for easy access to internal components without disturbing the main 1-inch NPT line.
• Cast Iron Durability: The ASTM A126 Class B body provides the structural integrity required for long-term HVAC service.

Common Questions

What is the maximum operating pressure for the FT-15?
The FT-15 is rated for a maximum steam pressure of 15 psig. Exceeding this limit can prevent the float mechanism from overcoming the internal pressure to open the valve head.

Can this trap be mounted vertically?
No, float and thermostatic traps must be installed in a horizontal plane to ensure the float mechanism operates correctly via gravity and buoyancy.

How do I select the right F&T trap for a unit heater?
Selection depends on the condensate load (lbs/hr) and the differential pressure across the trap. The 1" FT-15 is ideal for low-pressure applications requiring high air-handling capacity.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.