The Watts 0382570 (model 740-030 1) is a 1 in. iron boiler pressure relief valve set at 30 psi, with an expanded 1-1/4 in. outlet. It is made for hot water space heating boilers and is designed for emergency safety relief, not as an operating control.
Key features
- Iron body
- Factory set at 30 psi
- Spring loaded with automatic reseating
- Expanded outlet
Specifications
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Brand: Watts
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Manufacturer part number: 0382570
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Model: 740-030 1
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Inlet: 1 in. female NPT
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Outlet: 1-1/4 in. female NPT
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Set pressure: 30 psi
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Capacity: Up to 1,300,000 Btu/h
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Body: Iron
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UPC: 098268019087
Relief valves must be installed by a qualified installer following the manufacturer's instructions and local code, with the discharge piped to a safe location.