Description
The Armstrong International A9739 is a precision-engineered thermostatic air vent with gasket, designed as a direct replacement component for a broad range of Armstrong steam trap and drainer product families. By efficiently venting non-condensable gases and air from steam systems, this component helps maintain peak heat transfer efficiency, reduces energy waste, and extends the service life of the steam traps it supports.
Broad Compatibility
The A9739 is engineered to fit the following Armstrong International product series:
- A, J, JD, K, KD, L, LS, M, and MS Series Float & Thermostatic (F&T) Steam Traps
- LD and DG Series Ball Float Drainers
- AV Series Air Vents
Key Features & Benefits
- Thermostatic operation automatically vents air and non-condensable gases without releasing live steam
- Includes gasket for a reliable, leak-free seal upon installation
- Genuine Armstrong International replacement part ensures OEM fit and performance
- Helps restore full steam trap efficiency in aging or serviced systems
- Reduces system air binding, improving heat distribution across hydronic and steam heating systems
- Durable construction suited for demanding commercial and industrial steam system environments
Applications
- Commercial and industrial steam heating systems
- Process steam applications utilizing Armstrong F&T steam traps
- Drip and tracer steam lines using LD and DG Series ball float drainers
- Air elimination in AV Series air vent assemblies
- Preventive maintenance and steam trap repair programs
Why Choose Armstrong International?
Armstrong International is a globally recognized leader in steam, air, and hot water solutions. Their replacement parts are manufactured to the same exacting standards as original equipment, ensuring reliable performance and long service intervals. The A9739 thermostatic air vent with gasket is the recommended OEM replacement for maintaining the efficiency and integrity of your Armstrong steam trap investment.
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