Globe Valves BoTeli valves are available in three 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 penetration strength welded joint is available. The trird design is the pressure seal bonnet, with a threaded and pressure seal bonnet joint. Globe Valve Design Construction and Specifications BoTeLi globe valves conform to API 602, BS 5352, and ASME B 16.34. Each are tested according to API 598, and marking is per MSS SP-25. Construction is as follows: Full Port or Convetional PortOutside Screw and Yoke(OS&Y)Two Piece self aligning packing glandBolted bonnet with spiral-wound gasket, threaded and seal welded bonnet or threaded and pressure seal bonnetIntegral backseatLoose solid discSocket weld Ends to ASME B16.11Screwed Ends(NPT) to ANSI/ASME B1.20.1