A long-time standard for safety and reliability in the oilfield, our THORNHILL CRAVER unibolt positive choke valve are designed for maximum performance under critical conditions.

THORNHILL CRAVER unibolt positive choke valves are available for pressures up to 20,000 psi with either alloy steel or 12% chrome stainless steel body. They are provided with a ring-groove or taper-type seal, depending on size and pressure. Bean sizes can be specified from 1/64" to 2" (0.040 mm to 50.8 mm). Engineered for heavy-duty, maintenance-free performance, the THORNHILL CRAVER unibolt positive choke valve is commonly selected for a number of applications, including:

  • Wellheads
  • Well testing
  • Manifolds
  • Process facilities

The Unibolt coupling between the blanking plug and the body is a unique design feature that ensures reliability and safety over other methods. The connection is made by means of the Unibolt interlocking shelf design rather than by conventional threads or flanges.