Spirax-Sarco 58135 Mechanism

Upgrade or restore your steam system with the Spirax-Sarco 58135 Mechanism, a precision-engineered replacement valve mechanism assembly specifically built for the FT-15 2 inch Float and Thermostatic steam trap. Designed for heavy-duty industrial and commercial condensate management, this assembly utilizes a robust stainless steel lever and seat operation to ensure continuous, modulating discharge. By reacting instantly to condensate levels, it prevents steam loss and maintains the thermal efficiency of process equipment, air heating coils, and heat exchangers.

The 58135 mechanism kit includes the vital stainless steel valve head, seat, mounting screws, and gasket required for a full internal overhaul. This kit allows for complete "in-line" servicing, meaning you can pull the cover and swap the internals without breaking the 2" NPT piping connections. This is essential for minimizing downtime in critical boiler feedwater or unit heater loops. Built to handle a Maximum Operating Pressure (PMO) of 15 psig, this OEM assembly ensures your F&T trap operates with the reliability demanded by veteran facility technicians.

• Direct OEM Replacement: Guaranteed fit for the Spirax-Sarco FT-15 2" series, ensuring precise valve seating and alignment.
• Durable Stainless Internals: High-grade stainless steel valve head and seat resist corrosion and waterhammer for long-term service in harsh environments.
• Bypass-Free Maintenance: Facilitates internal repairs without disturbing main steam line piping, reducing labor hours and system disruption.
• Continuous Condensate Removal: Modulating design discharges condensate at steam temperature, preventing backup in heat transfer surfaces.

• Does this kit include the float ball? No, the 58135 is a mechanism-only assembly (less float). If your ball float is punctured or waterlogged, it must be purchased separately.
• Can I use this for the FT-30 or FT-125 models? No. This specific mechanism is calibrated and sized strictly for the FT-15 2-inch model. Using the wrong mechanism will lead to improper flow rates or premature valve failure.
• Is the cover gasket included? Yes, the 58135 kit typically includes the mounting gasket to ensure a leak-free seal upon reassembly of the trap body.

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.