Spirax-Sarco 50928 Trap

The Spirax-Sarco 50928 FT-30 3/4 Trap is a high-performance float and thermostatic steam trap engineered for precision condensate management in industrial steam systems. Built with a rugged cast iron body (ASTM A126 Grade B), this unit is designed for a maximum operating pressure of 30 psig and can handle heavy condensate loads up to 1,370 lb/hr. The trap utilizes a modulating float valve mechanism to provide continuous drainage of condensate at steam temperature, ensuring optimal heat transfer in heat exchangers, unit heaters, and air heating coils.

To prevent air binding, the Spirax-Sarco FT-30 features an internal balanced-pressure thermostatic air vent made of corrosion-resistant stainless steel. This dual-action design excels in applications with modulating steam pressures and varying loads, as it effectively vents non-condensable gases during startup and operation. The parallel flow pattern with 3/4" FNPT connections allows for simplified maintenance without disturbing the main piping. With all-stainless steel internals, this industrial steam trap provides reliable performance in demanding HVACR and process environments, maintaining system efficiency at temperatures up to 450°F.

• Continuous Condensate Discharge: Modulating float mechanism ensures immediate removal of condensate to maximize equipment thermal efficiency.
• Superior Air Venting: Integrated stainless steel thermostatic element prevents air binding and handles high startup air loads.
• Heavy-Duty Construction: Cast iron housing and stainless steel internal components resist water hammer and corrosion.
• Ease of Service: Parallel piping configuration allows technicians to access internal mechanisms without breaking pipe connections.
• Optimized for Modulating Loads: Ideal for systems controlled by temperature modulating valves where pressure fluctuates.

What is the maximum pressure rating for the Spirax-Sarco 50928?
This specific FT-30 model is rated for a maximum operating pressure (PMO) of 30 psig. For systems exceeding 30 psig, a higher-rated FT series trap should be selected to ensure proper orifice sizing and operation.

Can this trap be installed in-line?
The FT-30 features a parallel flow pattern, meaning the inlet and outlet are on the same side. For installations requiring a straight-through flow, the FTI series is the appropriate alternative.

Is this trap suitable for outdoor applications?
Yes, provided the trap and associated piping are properly insulated or protected from freezing. The cast iron construction and stainless internals are resilient, but standing condensate can freeze and damage the body if the system is shut down in sub-zero conditions.

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.