Spirax-Sarco 50929 Trap

The Spirax-Sarco 50929 is a heavy-duty FT-30 1 inch F & T trap engineered for saturated steam system applications requiring reliable condensate drainage and continuous air venting. This float and thermostatic steam trap features a rugged cast iron body and stainless steel internals designed to handle a maximum operating pressure of 30 psig. The integrated thermostatic air vent utilizes a balanced pressure bellows to ensure rapid discharge of air and non-condensable gases, preventing steam binding and thermal lag during system start-up. Designed for horizontal piping configurations, the Spirax-Sarco FT-15/30 series is a standard choice for HVAC heat exchangers and large unit heaters where modulated steam pressure is common. Its inline design allows for straightforward maintenance without disturbing the main piping, ensuring efficient steam trap performance and energy conservation across industrial steam distribution networks.

Key Benefits

• Consistent Condensate Removal: Dual-valve mechanism responds immediately to condensate load changes, maintaining heat transfer efficiency.
• Corrosion Resistance: High-grade stainless steel working parts ensure durability in harsh chemical environments.
• Integrated Air Venting: Automatic air vent improves warm-up times and prevents water hammer.
• Field Serviceable: Precision-machined internals allow for in-line repair and inspection to minimize system downtime.

Common Questions

What is the maximum differential pressure for the Spirax-Sarco 50929?
This specific model is rated for a maximum differential pressure of 30 psi. Using it in systems exceeding this pressure will cause the float mechanism to remain closed.

Can this steam trap be installed in a vertical orientation?
No, the FT-30 series must be installed in a horizontal plane with the arrow on the body pointing in the direction of flow to ensure the float mechanism functions correctly.

How do I troubleshoot steam blowing through the trap?
Check for scale or debris lodged in the main valve seat or a failed thermostatic bellows. Regular cleaning of the internal strainer is recommended for optimal performance.

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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.