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Xylem 401413 Model 4A Steam Main Air Vent 1/2" x 3/4" 2 PSI

Manufacturer

Picture for manufacturer Xylem

Part Number

401413
6 reviews
Sale Price

$86.70

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Xylem 401413 Model 4A is a float-type thermostatic air vent designed for residential or small one-pipe and two-pipe steam heating systems. This non-vacuum air valve features a straight configuration with dual NPT threading for flexible installation options.

Key Features:

  • Float-type thermostatic design automatically closes when steam reaches the vent
  • Single non-adjustable port for reliable air removal from steam mains
  • Dual threaded connections: 1/2" NPT female and 3/4" NPT male straight shank
  • Maximum operating pressure: 2 PSIG (0.13 bar)
  • Maximum pressure rating: 10 PSIG (0.7 bar)
  • Maximum temperature: 240°F
  • Durable steel construction for long-lasting performance

Installation Requirements:

  • Must be installed 6-10 inches (150-250mm) above horizontal return line
  • Position at least 18 inches (450mm) above the boiler water line
  • Designed for end-of-main installation to evacuate air during system startup

Manufactured by Hoffman Specialty, a trusted Xylem brand with over a century of expertise in steam heating solutions. This main steam vent improves heating efficiency by allowing rapid air evacuation during startup, enabling steam to reach radiators faster and reducing fuel consumption.

The way it was described it come with everything you needed and it took over a week to get the product to find out it did not come with the lower unit so now it's going to take another 5 to 10 days to get the rest of the product it should've come with everything it's not a replacement air conditioner

Great site.

Fast and easy.......

Very easy to use...

All good

Sweet and Easy

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