Extended Body Valves BoTeli extended body 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 penetration strength welded joint is available. Globe Valve Design Construction and Specifications BoTeLi extended body valves conform to API602 and API606. Each are tested according to API598, and marking is per MSS SP-25. Construction is as follows: Two piece self-aligning packing glandIntegral extended body with threaded, socket weld or butt weld connectionBolted bonnet with spiral-wound gasket or threaded and seal welded bonnetIntegral backseatSocket weld ends to ASME B16.11Screwed Ends(NPT) to ANSI/ASME B1.20.1Outside Screw and Yoke(OS&Y)