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Hydraulic Butterfly Check Valve

Hydraulic Butterfly Check Valve

Vatac Lift Butterfly Check valves are installed in pipelines to allow flow in one direction only; helping to protect equipment and processes. The operation, benefits, applications and selection of different designs, including lift disc, swing and wafer check valves are explained in this......

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Vatac Lift Butterfly Check valves are installed in pipelines to allow flow in one direction only; helping to protect equipment and processes. The operation, benefits, applications and selection of different designs, including lift disc, swing and wafer check valves are explained in this tutorial. Lift check valves are similar in configuration to globe valves, except that the disc or plug is automatically operated. The inlet and outlet ports are separated by a cone shaped plug that rests on a seat typically metal; in some valves, the plug may be held on its seat using a spring. When the flow into the valve is in the forward direction, the pressure of the fluid lifts the cone off its seat, opening the valve. With reverse flow, the cone returns to its seat and is held in place by the reverse flow pressure.

» Design & Manufactured to API 6D, ASME B16.34 or Equivalent ◆ P.T Ratings to ASME B16.34

» Face to Face dimensions to ASME B16.10 ◆ Flanged Ends to ASME B16.5

» Butt-weld Ends to ASME B16.25 ◆ Threaded Ends to ASME B1.20.1

» Socket-weld Ends to ASME B16.11 ◆ Valves Marking to MSS SP-25

» Inspect & Tested to API 598

» Sizes Ranges from 1/2” thru 24”

» Pressure Ratings from Class 150 to Class 2500, PN10 to PN420

» Structures in Bolted or Pressure Sealed Union Cover

» Ends Connections in Flanged R.F or RTJ, Threaded NPT, BSPT, Welded S.W, B.W and Grooved

» Body Materials available in Cast or Forged Carbon Steel ASTM A216 WCB, WCC, ASTM A105N, Low Carbon Steel LCB, LCC, LF2, Alloy Steel WC6, WC9, F11, F22, Stainless Steel CF8, CF8M, CF3, CF3M, A182 F304, F304L, F316, F316L, Duplex & Super Duplex Steel A890 GR. 4A, 5A or F51, Special Materials in Monel, Alu. Bronze C95800, 95600 etc. 

» Trim Materials available in 13%Cr, F11, F22, SS304, SS304L, SS316, SS316L and other specials. Optional H.F Overlayed

» Optional Bypass system & Counter-weight Assembly.

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