PRESSURE SEAL CHECK VALVE

The core ranges are class 900, 1000, 1500, 1690, 2500, 2850 and 4500 flanged and butt-weld end designs meeting the requirements of ASME, API and British Standards. The size range includes up to 24” bore (larger sizes available on request), and is manufactured as standard in ASTM A216 Gr. WCB grade of carbon steel.



These products are also available in the following materials:-



  Low Temperature carbon and alloy steels ASTM A352 Gr. LCB, LCC, LC2, LC3

  Alloy Steels ASTM A217 Gr. WC1, WC6, WC9, C5 & C12

  Stainless Steels ASTM A351 Gr. CF8M, CF3M, CF8, CF3, & CF8C



Together with the necessary variety of trim options



 Valve Specification Details



  BS1868, API6D regular opening, ASME B16.34

  Flanged or butt-weld ends

  Hardfaced seat and disc as standard

  Seal welded seat as standard on commodity range

  Low pressure drop design

  Non-rotating disc

  Special hinge pin plug design having a graphite secondary plug seal ensuring non-wetted threads

  Suitable for horizontal or vertically upwards flow

  Castings to ASTM E446 level 3

  Available in a wide range of materials and trim options

  Available in pressure classes 1000 - 4500



Optional Features



  Outside lever and weight arrangement

  Attachment for locking valve in fully open and/or fully closed positions

  By-pass and drain connections

  Damping devices