Description
The Armstrong International 125A3 is a Series A Cast Iron Float & Thermostatic (F&T) Steam Trap engineered for dependable, continuous condensate drainage in a wide range of commercial and industrial steam heating systems. Combining a float mechanism for continuous liquid discharge with a thermostatic air vent for automatic air and non-condensable gas elimination, this trap delivers efficient steam system performance and helps prevent energy waste caused by steam loss or condensate backup.
Key Features
- Series A Cast Iron body construction for durability in demanding steam environments
- 3/4″ NPT standard end connections for straightforward installation and compatibility
- Maximum operating pressure of 125 PSI
- 1/8″ orifice for controlled, efficient condensate discharge
- Integrated thermostatic air vent automatically purges air and non-condensable gases on startup and during operation
- Float & Thermostatic (F&T) design provides continuous, modulating condensate drainage without steam loss
- Suitable for steam heating, process, and HVAC applications
Product Specifications
- SKU: 125A3
- Brand: Armstrong International
- Connection Size: 3/4″ NPT
- Connection Type: Standard (NPT)
- Maximum Pressure: 125 PSI
- Orifice Size: 1/8″
- Body Material: Cast Iron
- Trap Type: Float & Thermostatic (F&T)
- Series: Series A
Why Choose an F&T Steam Trap?
Float & Thermostatic steam traps are the preferred choice for applications requiring continuous condensate removal at varying loads. The float valve responds instantly to condensate levels, while the thermostatic element handles air venting — together ensuring maximum heat transfer efficiency, reduced water hammer risk, and longer system component life. The Armstrong 125A3 is built to deliver these benefits in a robust cast iron package rated for up to 125 PSI service.
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