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Gorton Heating Corporation

Gorton Heating Corporation No. C 1/8" Straight Vapor Equalizing Steam Air Vent Valve

SKU CH-MVQT-94R4F

Steam air vent valve with 1/8" connection that vents air equal to 15 ordinary valves

  • TypeSteam Air Vent Valve
  • Male Pipe Size1/8"
  • Equal venting of 15 standard valves with one unit
  • 1/8" male pipe fits common radiator connections
  • Straight vapor-equalizing design balances steam systems efficiently
  • Install on distant or cold-room radiators for even heat
  • New Gorton No. C valve ready for steam service

1/8" Steam Air Vent Valve

The Gorton No. C is a straight vapor equalizing valve designed for one-pipe steam heating systems. It installs on radiators positioned farthest from the boiler or in the coldest rooms, such as upper-floor units. The 1/8" male pipe thread connects directly to standard radiator tappings. This valve automatically vents air to allow steam to enter the radiator quickly.

Venting capacity equal to 15 ordinary valves

The unit provides aggressive venting capacity rated at 15 times that of ordinary type air valves. This high capacity rapidly removes large volumes of air from distant or oversized radiators. It ensures steam reaches the heating element faster, reducing warm-up time for cold rooms. The valve closes automatically when steam arrives, preventing live steam loss.

1/8" male pipe thread connection

Installation requires a standard 1/8" female tapping on the radiator body. The straight body configuration fits typical radiator connections without additional fittings. No external power or control wiring is needed for operation. The valve frees the system from air-binding issues that cause uneven heating across the building.

Highlights

  • Equal venting of 15 standard valves with one unit
  • 1/8" male pipe fits common radiator connections
  • Straight vapor-equalizing design balances steam systems efficiently
  • Install on distant or cold-room radiators for even heat
  • New Gorton No. C valve ready for steam service

Specifications

TypeSteam Air Vent Valve
Male Pipe Size1/8"

Questions about this item

Will the 1/8" male pipe thread fit the existing radiator tapping I already have?

The valve uses a standard 1/8" male pipe thread, matching common radiator tappings on older steam systems.

How can I confirm the vent is releasing air properly once installed?

You should hear a clear hissing sound during heat-up, then silence once steam reaches the vent and the internal thermostat closes.

Does the package include pipe sealant or a wrench for the 1/8" connection?

The box contains only the No. C straight vapor equalizing valve; thread sealant and a suitable wrench must be sourced separately.

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