1 Aug 2022

Oliver Twinsafe CSL Valves Bound for the U.S

Oliver Twinsafe has built 6 x 6” Double Block and Bleed Valves with Trunnion mounted ball valves, full bore and a pressure rating up to Class 1500 – ready for shipment to our U.S distributor AWC INC.

Valves are a single piece body of Compact Standard Length (CSL) manufactured from carbon, with specifications that include: 6” inlet and outlet 1500RTJ flanges, ¾” 1500RTJ flange vent complete with Oliver Valve 10mm DBB and ¾” 1500RTJ Flange x ½” NPT (INC 625). Body material is ASTM A350 LF2, with 625 overlay on the seat pocket and stem sealing areas, stem and seat injection, trim UNS S31803/F55, Inconel 718 and X750. Valves include PEEK seats and seals with PTFE Lip Seal, FKM Vermillion Three O ring and graphite.

The valves are designed and built to operate at temperatures from -25 deg C to 200 deg C at pressures of 3,705 PSI (255.5 bar). Face to face dimension as per ASME B16.10 and tested to API 598 / API 6D. HP nitrogen gas tested and 100% LPI and UT testing of the body, ends and trim.

For more information on pipeline valves, contact Oliver Twinsafe on +44 (0)1565 632 636 or email |

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