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AS Watts

Cast Iron Air Separators

Series AS Air Separators are used in commercial and residential, hydronic heating applications to separate air from water in the piping system. They consist of a heavy, cast-iron body construction with a 1/2 in. female threaded connection for an expansion tank, and a 1/8 in. female threaded connection for a float vent. Series AS provides continuous purging and venting of air in the system when installed with Watts Model ET expansion tank and Model FV4 float-vent. Maximum Pressure: 125psi (8.6 bar).

Features

  • Separates air from water in hydronic heating piping systems
  • Continuously purges and vents air in the system when installed with Watts Model ET expansion tank and Model FV4 float-vent
  • Cast iron body construction
  • 1/2 in. female threaded connection for an expansion tank and a 1/8 in. female threaded connection for a float vent

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Approval Information

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