AS
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
- 1/2 in. female threaded connection for an expansion tank and a 1/8 in. female threaded connection for a float vent
- Cast iron body construction
Literature
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Approval/Certification Information
For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:
| ASSE | CSA | FM Approvals | NSF |
| UL | ULC | USC | WQA |