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Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. Axial Flow Non slam check valves or Nozzle Check Valves from Vatac are designed and manufactured strictly to updated International Standards of API 6D, ASME B16.34 or Equivalent; Vatac non slam check valve are specifically designed for fast-reversing systems where backflow is a constant concern.
Vatac Axial Flow Non Slam Check valves deliver an effective dynamic response under various flow deceleration conditions, this unique design features result in superior performance, fast response and lower pressure loss in piping systems.
■ Minimizes the damaging effects of water hammer in fluid systems
■ Removal of chatter associated with conventional valves in reciprocating compressor service
■ Protects rotating equipment from damage due to flow reversal
■ Minimizes pressure loss in piping systems
■ Provides quick dynamic response reducing reverse velocity
■ Few moving parts minimizing wear.
■ Axial movement of disc resulting in low pressure drop.
■ Short stroke of spring-assisted disc providing valve closure quick response
● STANDARDS COMPLIANCE & AVAILABILITY:
■ Design & Manufactured to API 6D, API 594, ASME B16.34 or Equivalent ▲ P.T Ratings to ASME B16.34
■ Face to Face Dimensions to API 6D Standard or Short Pattern ▲ Flanged Ends to ASME B16.5, Wafer Ends to API 594
■ Butt-weld Ends to ASME B16.25 ▲ Valves Marking to MSS SP-25
■ Inspect & Tested to API 598 or API 594
■ Sizes Ranges from 2” thru 60”
■ Structured in One Piece Union Body
■ Pressure Ratings from Class 150 to Class 2500, PN16 to PN420
■ Ends Connections in Flanged R.F or RTJ, Wafer, Butt-weld or Hub Ends
■ A variety of body and trim material is offered, including carbon steel ASTM A216 WCB, WCC; Cast or Ductile iron A126, GG25, A536 or GGG50, Low Carbon Steel LCB, LCC, Alloy Steel WC6, WC9, C5, Stainless Steel CF8, CF8M, CF3, CF3M, Duplex & Super Duplex Steel A890 GR. 4A, 5A or F51, Special Materials in Monel, Alu. Bronze C95800, 95600 etc. Coatings may be provided for added corrosion or wear resistance. Hard-facing and weld overlays may also be supplied. Seats Options with metal-to-metal or bubble-tight resilient.
■ Optional Bypass system & Counter-weight Assembly.
Please feel free to contact with Vatac Sales team or your local Representatives for other optional special requirementshttp://www.vatacvalve.com/Product/CheckValve_Class_259.html
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