Spirax-Sarco 58131 Valve Kit

Maintain peak system efficiency with the Spirax-Sarco 58131 Valve Mech Kit, a specialized internal assembly designed for 1-1/2" FT-15 Float and Thermostatic Steam Traps. This heavy-duty steam trap repair kit includes the essential valve seat and lever mechanism required to restore modulating condensate discharge. Engineered specifically for low-pressure steam systems, the 58131 ensures the trap’s internal linkage operates smoothly under a 15 psig maximum operating pressure. By replacing the F&T trap mechanism, technicians can resolve issues with waterlogging or steam loss without disturbing the main piping. The precision-machined Spirax-Sarco replacement parts within this kit provide a high-tolerance fit, crucial for maintaining a tight seal in demanding industrial heat exchanger and unit heater applications. Utilizing this float and thermostatic mechanism ensures localized condensate drainage remains continuous and proportional to the load.

• Compatible with all 1-1/2" NPT Spirax-Sarco FT-15 series traps.
• Supports continuous condensate discharge to prevent water hammer and temperature fluctuations.
• Enables easy in-line steam trap maintenance without the need for pipe removal.
• Robust stainless steel construction resists corrosion and wear in high-cycle commercial steam environments.
• Direct OEM fit ensures precise valve opening and closing based on float position.

Is the float ball included in this kit?
No, the 58131 is the valve mechanism assembly (lever and seat). If the float ball is damaged or waterlogged, it must be ordered separately as part of a float kit.

Can I use this kit for an FT-30 or FT-125 trap?
This specific mechanism is calibrated for the 1-1/2" FT-15. Using it in traps with higher pressure ratings (like the FT-125) may result in the trap failing to open against the higher differential pressure.

How do I know if the mechanism needs replacement?
If the trap is leaking live steam or failing to discharge condensate while the float is intact, the valve seat or linkage is likely worn and requires a new mechanism assembly.

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.