Oliver Valves is one of the premier needle and ball valve manufactures in the world. Oliver Valves has an extensive product range offering both needle and ball valves to 10,000 psi together with needle valve manifolds and close coupled manifolds. A full range of monoflanges and slimline monoflanges, double block and bleed valves, injection valves, and sampling valves as well as distribution manifolds and instrumentation products complete the extensive range offered by Oliver Valves.