Cryogenic Valves BoTeli cryogenic valves are available in two bonnet designs. The first design is the Bolted Bonnet, with male-female joint, spiral wound gasket, made in F304L/Graphite. Ring joint gasket are also available on request. The second design is the welded bonnet, with a threaded and seal welded joint. On request a full penertration strength welded joint is availabel. The cryogenic valves are available in gate and globe design configurations. Valves are designed with an extended bonnet for use n cold services to 196 degrees C(-320 degrees F). Globe Valve Design Construction and Specifications BoTeLi cryogenic gate and globe valves conform to API602, MSS-SP-118 and BS 6364. Each are tested according to API598, and marking is per MSS SP-25. Construction is as follows: Full Port or Convenional PortTwo piece self-aligning packing glandBolted bonnet with spiral-wound gasket or threaded and seal welded bonnetIntegral backseatPressure relief hole on seat(For gate valves only)Socket weld ends to ASME B16.11Screwed ends(NPT) to ANSI/ASME B1.20.1Special extension lengths on requestSoft seats for globe valves on requestPTFE stem packing on requestSpecial low temperature testing on requestOutside Screw and Yoke(OS&Y)