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Piston check valves Piston check valves Overview Category: Gate, globe, and check valves Product line: Bonnetless valves Size range (s) NPS 1/2 - 4 (DN 15 - 100) Pressure rating ASME Classes 1690 - 4500 Standard connections Threaded, socket weld, butt weld Features and benefits


Check valves allow the flow in one direction and prevents back flow in case the fluid in the line reverses direction. They are self-automated valves that do not require any operator – either manual or automatic – to open and close. That’s a plus whenever in a plant there is a loss of electricity or pneumatic air supply.


PISTON CHECK VALVE The pressure of the fluid passing through a sys- tem opens the valve, while any reversal of flow will close the valve. In Piston, or lift, check valves body-guided disc moves within the body bore. The body guide ensures alignment of the seat and disc when the valve closes.
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PISTON CHECK VALVE The pressure of the fluid passing through a system opens the valve, while any reversal of flow will close the valve. In Piston, or lift, check valves a body-guided disc moves within the body bore. The body guide ensures alignment of the seat and disc when the valve closes.


Piston Check Valve DIMENSIONAL DATA (Click link for information.) Class: 150; Sizes: 2" - 24" Class: 300; Sizes: 2" - 16" Class: 600; Sizes: 2" - 24" Class: 900; Sizes: 2" - 12" Class: 1500; Sizes: 2" - 12" Class: 2500; Sizes: 2" - 12" Click to download brochure. DIMENSIONAL DATA - PISTON CHECK VALVES DIMENSIONAL DATA Piston Check Valves - API 6D


PISTON CHECK VALVES 'Y' TYPE EN 12516 design | For oil & gas and other industrial applications. "Y" pattern for turbulence reduction. TECHNICAL DATASHEET PISTON CHECK VALVES 90° ANGLE EN 12516 design. For oil & gas and other industrial applications. 90° design for plant perpendicular junction. TECHNICAL DATASHEET SWING CHECK VALVES PRESSURE SEAL


Swing check, Ball check (straight or Y pattern), Piston Check (straight or Y pattern), tilting disc, dual plate, axial: Construction: Bolted Cover, Welded Cover, Pressure Seal: Main Design Codes: ASME B16.34, API 602, BS5352, ISO 15761, API 6A, BS 1868: Pressure Class: ANSI 150#-4500# Size range: from ½” to 24″ API 6A Pressure Class: 3000 ...