liangjing bellows seal valves are available in two bonnet designs:
．Bolted Bonnet, with male-female joint, spiral wound gasket, made in F304L/graphite. Ring joint gasket is also available on request.
．Welded Bonnet, with a threaded and seal welded joint. On request a full penetration welded joint is available.
Construction is as follows:
．Two piece self aligning packing gland
．Bolted Bonnet with spiral-wound gasket, threaded and seal welded bonnet
．Socket Weld Ends to ASME B16.11
．Screwed Ends (NPT) to ANSI/ASME B 1.20.1
．Outside Screw and Yoke (OS&Y)
．Grease nipple for stem