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Lead Free* cast copper silicon alloy body safety relief valves for pressure protection only of all types of hot water heating boiler equipment. Pressure range 50 to 150psi (3 - 10 bar) with corresponding high ratings from 950,000 to 14,370,000 BTU/hr. Female inlet and outlet connections. Sizes 3/4" - 2". The LF174A features Lead Free* construction to comply with Lead Free* installation requirements
- Lead Free
- Seat located above drain; water cannot be trapped and sediment cannot foul seat
- Non-mechanical seat-to-disc alignment will not stick or freeze
- Water seal of high temperature resisting material isolates spring working parts from water during relief
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