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Apollo Valves 4A4A33AMC - 1/2" FNPT Dual Check w/ Atmospheric Vent, Brass, Union Connections.
The Apollo Valves 4A4A33AMC Dual Check with Atmospheric Port is designed to protect residential and commercial water supply lines from back-siphonage or back-pressure of non-potable/non-hazardous substances. An intermediate atmospheric vent provides protection from backflow conditions.
- Corrosion resistant.
- Low head loss.
- Independently acting check valves.
- Ease of repair and installation.
- Suitable for hot or cold water service.
- Can be installed horizontally or vertically (Flow Up Condition Only)
- Lead free option
- 2 Year warranty
- Maximum working pressure: 175 psig
- Inlet temperature range: 33°F - 210°F
- Maximum backflow temperature: 250°F
- APPROVALS: ASSE 1012, CSA B64.3, NSF/ANSI 372-2016
- SKU: 4A4A33AMC