Spirax-Sarco 57059 Trap

The Spirax-Sarco 57059 is a heavy-duty 1-1/2" Float and Thermostatic Steam Trap engineered for efficient condensate management in low-pressure steam systems. Built with a rugged cast iron body and high-grade stainless steel internals, the FT-15 series is designed to handle a maximum operating pressure (PMO) of 15 psig. This F&T trap features a parallel piping configuration, allowing for streamlined installation and maintenance without disturbing existing pipework. It utilizes a modulating ball float mechanism to ensure continuous condensate discharge at steam temperature, preventing backup in your heat exchangers or unit heaters. Additionally, the integrated balanced pressure thermostatic air vent rapidly clears non-condensable gases, significantly reducing startup times and preventing air binding. This unit is a reliable replacement for Spirax Sarco steam traps in commercial HVAC and industrial process applications where variable loads and modulating pressures are present.

• Continuous Discharge: The stainless steel float mechanism modulates to match the condensate load, ensuring no cooling of the steam space.
• High Heat Tolerance: Rated for a maximum allowable temperature of 450°F, making it suitable for demanding 15 psi steam environments.
• In-Line Serviceability: Designed for veteran technicians, the internal components are fully accessible by removing the cover, eliminating the need to break pipe seals.
• Water Hammer Resistance: Durable 440 stainless steel valve heads and robust internals resist damage from system surges.
• Improved Efficiency: Rapidly removes air during startup to ensure immediate heat transfer in air heating coils and shell-and-tube exchangers.

What is the maximum capacity for the 1-1/2" FT-15 model?
At its peak 15 psi differential, the Spirax-Sarco 57059 can discharge approximately 7,600 lbs/hr of condensate, making it ideal for large-scale heat exchange equipment.

Can I install this trap in a vertical piping run?
No, this specific model requires horizontal installation. The float arm must remain in a horizontal plane to ensure the ball rises and falls vertically for proper valve modulation.

Is this trap compatible with modulating control valves?
Yes, float and thermostatic traps are the preferred choice for systems with modulating temperature controls because they respond instantly to pressure and load fluctuations.

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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.