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Watts 9D-M3 series dual check valves with atmospheric vent are intended to provide backflow and cross-contamination prevention in a variety of applications, including hot water boilers, etc.
Technical Specifications:
Features:
Technical Specifications:
- Size: 3/4"
- Connections: FNPT Union x FNPT Union
- Operating Temperature Range: 33 - 250°F
- Max. Working Pressure: 175 psi
- Minimum Pressure: 25 psi
Features:
- Can be used under continuous pressure
- Suitable for boilers, lab equipment, farm equipment (livestock drinking cups, etc.) and many others
- Brass body with stainless steel strainer, internal parts & rubber check valve seal
- Suitable for vertical installation
- Made to ASSE 1012 & CSA B64 standards, CSA certified, NYC B.S.A. 104-75-SM