Gorton Heating Corporation No. 6 1/8" Angle Steam Air Vent Valve

Gorton No. 6 Radiator Steam Vent

The Gorton No. 6 is a 1/8 inch male-threaded angle air release valve designed for steam radiator systems. It targets installers balancing heat distribution in one-pipe steam installations where distant or cold-room radiators vent too slowly. Its non-adjustable orifice replaces standard vents that cannot move enough air. The steel body withstands steam temperatures between 140 and 240 degrees Fahrenheit.

Installation Notes and Common Issues

The valve threads directly into a 1/8 inch female tapping on the radiator using standard pipe sealant; no special tools are required beyond a wrench on the hex flats. Because the vent is non-adjustable, installers cannot fine-tune venting rate on site — if the room overheats or stays cold, the valve must be swapped for a different model. Debris in old systems can foul the seat, so flushing the radiator before fitting prevents leaks. The angle pattern eases access on wall-mounted radiators with limited clearance.

Pre-Order System Checks

Confirm the radiator tapping is exactly 1/8 inch NPT male thread; other sizes will not seal. Verify the system operates within the 140 to 240 degree Fahrenheit range, as higher temperatures can damage the valve seat. Ensure the piping layout is one-pipe steam; this vent is not suited for two-pipe or hot-water systems. Check that the radiator location matches the intended use — units farther from the boiler or on upper floors benefit most from the high-capacity venting.