Relief Valves by Crispin Valve

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	Check Valves Bronze Cast Iron Disc Ductile Iron Flap Foot Stainless Steel Swing Vacuum Wafer Valves Air Air Release Butterfly Control Foot Globe Relief Vacuum

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Crispin Valve

Berwick, PA

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		Vacuum Relief Valve The Crispin Vacuum Relief allows air to enter the system when a negative pressure occurs, but prevents air from being released under positive conditions, except through an optional small orifice Air Release Valve. Valve Features: • Cracks open to admit air at .25 PSIG differential pressure • Resilient drip tight seat • ANSI Class 125 & Class 250 flanged connection Standard Materials: • Cast iron body • Bronze and stainless steel trim • Optional materials available Sizes: • Sizes 3" thru 36" Request Quote View Literature

		Foot Valve Installed on the pump suction, Crispin Foot Valves prevent the pump column from draining upon pump shutdown. Silent during operating and normally closed, the valve has a center-guided disc with a Buna-N seat to provide a drip tight seal. Valve Features: • Resilient seat provides positive shut off • Full flow area • Rugged construction for long life Standard Materials: • Cast iron body • Bronze disc and seat ring • Stainless steel spring and inlet screen • Buna-N resilient seat Sizes: • 2” thru 36” available Request Quote View Literature