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We manufacture a variety of valve stems in a wide range of sizes.

Gate stems and globe stems, which mainly have an ACME thread, are used in valves for oxygen, acids, sea water etc., and are a particular area of expertise for us. They are also the main type of valve stem that we produce.

Gate stems and globe stems are manufactured from materials such as aluminium-bronze, stainless steel, nickel-based alloys, duplex, super duplex, Inconel alloys, Monel alloys, titanium etc.

  • A typical valve stem, specifically a gate stem, that is machined from Alloy 500 and has a two start left hand acme thread that is over 1 metre in length.
  • A typical globe stem that is machined from Alloy 400 and has a single start UN thread form.
  • A typical gate stem machined from aluminium-bronze, with a two start left hand ACME thread.

Our size range spans from as small as 12mm diameter by up to 3 metres in length. All of our valve stems are finish turned using a CNC lathe, to a tolerance of + / - 0.02mm with a surface finish of 0.4 to 0.8.