Feature：
Bolted Bonnet with male-female joint,spriral wound gasket,made in F304+graphite.Ring joint gasket are also available on request.
1. Full Port or Conventional Port
2. Outside Screw and Yoke(OS&Y)
3. Two piece self aligning packing gland
4. Bolted bonnet with spiral-wound gasket,threaded and seal welded bonnet or threaded and pressure seal bonnet
5. Integral backseat

Standard:
Design & manufacture: APl602，BS5352 and ASME Bl6.34
marking is per MSS SP-25
Flange end conforms to ANSI B 16.5
Socket weld Ends to ASME B16.11
Thread Ends(NPT)to ANSI B1.20.1
Testing & Inspection: API 598


IF need more information about it, please visit website of Jingdong:http://www.jdbv.com/