Oliver Valvetek Limited manufactures three sizes of small bore subsea check valves, 0.38″[10mm] bore, 0.75″[19mm] bore and 1.00″[25mm] bore.

The 0.38″[10mm] bore check valve has an operating pressure rating up to 10,000psi [690bar] and an operating temperature range of -20F[-29C] to +250F[+121C]*.

The poppet seal for the 0.38″ check valve is provided with a fully encapsulated PTFE ring or Elastomeric O-ring and it is ideally suited for hydraulic control operations. A range of poppet springs have been designed to provide different cracking pressures and can be provided in a range of materials such as X750 and Elgiloy (other materials are available).

Traceability of Materials – All the components within an Oliver subsea check valve have material traceability. The complete check valves are individually serialised and are provided with material and pressure test certificates to BS EN 10204 3.1 certifications. Optional EN 10204 with the intent of a 3.2 type certification option is also readily available (EN 10204 3.2 true mill witnessed shall be assessed for availability upon request).

* The 3/8” check valve is qualified to Qualified to API6A PR2 / API17D First Edition only with temperature limitations. Please contact Oliver Valvetek Technical teams for your specific application requirements.