Plug Type Disk, Straight Pattern, Bolted Bonnet,

 Integral Body Seat or Separate Seat Ring (Screwed or Welded In),

 Outside Screw and Yoke, Rising Stem,

 Rising Handwheel, Gearbox, or Power Actuator Operated,

 Complete with a Machined Conical Backseat in Bonnet

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 •  Design : BS 1873 

 •   Testing : API 598 / BS 6755-1

 •  ANSI Class 150 : 2" to 16"

 •  ANSI Class 300 : 2" to 12"

 •  ANSI Class 600 : 2" to 12"

 •  ANSI Class 900 : 3" to 12"

 •  ANSI Class 1500 : 2" to 10"

 •  Shell Materials : Carbon Steels ASTM A216 Grade WCB and WCC 

      Alloy Steels ASTM A217 Grades WC1, WC6, WC9 and C5

      Corrosion-Resistant Steels ASTM A351 Grades CF8 and CF8M

      Impact Tested C-Mn Steels ASTM A352 Grades LCB and LCC

      Duplex ASTM A890 Grade 4A

Other Standard is also available for DIN,JIS and MSS etc.