Macon Controls VENT-1/8 Vent Only

The Macon Controls VENT-1/8 is a professional-grade 1/8" NPT straight steam air vent specifically engineered for one-pipe steam systems. Designed as the primary venting component for 1-pipe valve kits like the Macon OPSK, this vent facilitates the critical removal of air from the radiator, allowing steam to enter and heat the cast iron or convection unit efficiently. Without a high-performance vent like the VENT-1/8, air remains trapped, leading to cold spots and short-cycling of the boiler.

This vent features a durable nickel-plated forged brass body and is rated for a maximum operating temperature of 248°F. As a veteran-preferred radiator air vent, it integrates seamlessly with thermostatic radiator valves (TRVs) to provide localized room temperature control. Its 1/8" male NPT connection ensures a standard fit for most radiator tappings, while its internal vacuum breaker function prevents the formation of a vacuum that could otherwise impede condensate return to the boiler.

• Optimized Air Exhaust: Maximizes one-pipe steam efficiency by ensuring rapid air elimination from the radiator body.
• Contractor-Grade Construction: Built with nickel-plated forged brass to withstand high-temperature cycles and minimize corrosion.
• Compatibility: Designed for use with the Macon Controls OPSK kit and other 1/8" threaded steam radiator applications.
• Internal Vacuum Breaker: Prevents "sticking" and ensures gravity-fed condensate can return to the riser without obstruction.

• Can this be used on a 2-pipe system? No, this is specifically vented for 1-pipe steam systems where the vent location is the only point of air exit.
• Does it require a special orientation? Yes, the Macon VENT-1/8 must be installed in a vertical, upright position to allow the float mechanism to seal correctly against escaping steam.
• Is it compatible with TRVs? Yes, it is the standard replacement vent for the Macon OPSK thermostatic radiator valve assembly.

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.