Armstrong International D25932 Radiator Trap

The Armstrong International D25932, also identified as the TS-3-1/2-ANGLE, is a heavy-duty 1/2" angle pattern radiator trap engineered for reliable condensate drainage in low-to-medium pressure steam heating systems. Featuring a rugged bronze body, this thermostatic trap utilizes a balanced-pressure bellows element that responds precisely to temperature changes, ensuring immediate air and non-condensable gas venting while preventing live steam loss. Rated for operating pressures up to 65 PSI, the D25932 is a standard steam trap replacement for commercial and industrial radiators, convectors, and finned tube heaters. Its angle pattern configuration allows for streamlined installation in tight piping geometries. This high-capacity radiator steam trap ensures thermal efficiency by maintaining optimal heat transfer surfaces through effective condensate removal. Built to withstand the rigors of cycling steam loads, the Armstrong TS-3 series provides the durability required for HVAC steam system maintenance and long-term infrastructure reliability.

• Corrosion-Resistant Construction: The bronze body and stainless steel internals provide maximum resistance to aggressive condensate and scale.
• Precise Thermostatic Control: The balanced-pressure bellows ensure high sensitivity to subcooled condensate for efficient steam system air venting.
• Interchangeable Design: Directly replaces the TS-3-1/2-ANGLE, ensuring drop-in compatibility for existing radiator configurations.
• High Pressure Rating: Capable of handling 65 PSI maximum operating pressure, suitable for various institutional heating applications.

Common Questions

What is the difference between the D25932 and the TS-3-1/2-ANGLE?
These parts are identical; D25932 is the specific Armstrong production code for the 1/2" TS-3 angle pattern radiator trap.

Can this trap be used on vacuum systems?
Yes, the Armstrong D25932 is designed to perform efficiently in both vacuum and gravity steam heating systems.

How do I verify if the bellows have failed?
If the radiator is cold or logging condensate, the thermostatic element may be failed in the closed position; if the return line is excessively hot, it may be failed open.

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.