API1000 and API6000 three piece

Oliver Twinsafe Valves Ltd also have a range of Double Block and Bleed valves designed in accordance with API6A. (Specification for wellhead and christmas tree equipment).

API Specification 6A specifies requirements and gives recommendations for the performance, dimensional and functional interchangeability, design, materials, testing, inspection, welding, marking, handling, storing, shipment and purchasing, of wellhead and christmas tree equipment for use in the petroleum and natural gas industries.

The design constraints imposed by this specification allows us to design and offer a much lighter and lower cost Double Block and Bleed valve compared to the design constraints imposed by ASME B16.34.