Spirax-Sarco 50926 Trap

The Spirax-Sarco 50926 is a professional-grade 3/4" NPT Float and Thermostatic Steam Trap engineered for heavy-duty HVAC and industrial process applications. This FT-15 series trap features a rugged cast iron body (ASTM A126 Class B) and durable stainless steel internals to withstand harsh operating conditions. Designed for systems with a maximum operating pressure (PMO) of 15 psig, it excels in managing modulating steam loads where rapid condensate removal is critical for maintaining heat transfer efficiency. The integrated balanced pressure thermostatic air vent automatically clears non-condensable gases at startup and during normal operation, preventing air binding and ensuring uniform heating. Its parallel piping configuration and 4.6-inch face-to-face dimension allow for seamless integration into existing steam main drip stations, unit heaters, and heat exchangers. This F&T trap is fully serviceable in-line, meaning the valve mechanism and float can be inspected or replaced without disconnecting the primary piping, significantly reducing maintenance downtime for contractors.

• Continuous Condensate Discharge: The modulating stainless steel ball float mechanism adjusts instantly to load fluctuations, providing steady drainage at steam temperature.
• High Thermal Efficiency: Internal air venting prevents "cold spots" in heat exchangers by ensuring non-condensable gases are purged immediately.
• Durable Construction: Rated for a maximum allowable temperature of 450°F and a maximum allowable pressure of 125 psig, ensuring reliability under pressure surges.
• Simplified Field Service: The bolt-on cover allows technicians to access the trap internals and gasket kits without disturbing the 3/4" FNPT connections.

What is the maximum capacity of the FT-15 3/4" trap?
At a 15 psi differential pressure, this model can discharge up to 1,075 pounds of condensate per hour.

Can this trap be installed in vertical piping?
The standard Spirax-Sarco 50926 is designed for horizontal installation to ensure the float arm operates in a horizontal plane. For vertical flow, an FTI-series trap is generally required.

Is this unit compatible with superheated steam?
While it can tolerate temperatures up to 450°F, float and thermostatic traps are primarily designed for saturated steam systems. Always verify your specific superheat levels against the Series FT15 technical data sheet.

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.