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- Caleffi Series 253 Saftey Solar Release Valve
Details
Safety relief valves for solar systems.
Working temperature range: -20—360ºF.
Normal pressure: 150 psi.
Opening over pressure: 10%.
Closing differential: 20%.
Discharge capacity: 171,000 BTU.
Connections: Inlet, ½" female.
Discharge, ¾" female.
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