APPLICABLE SPECIFICATION
Design Standard:API 6D/ANSI B16.34
Face To Face:ASME B16.10/ISO 5752/BS 558
Connection Standard:ASME B16.5/GB/T 9113.1/MSS SP-44/HG/T 20615
Buttweld:ANSI B16.25/GB/T 12224
Test&Inspection:API 6D/API 598/GB 13927

MAIN MATERIALS
Body &Bonnet&Disc :  Carbon Steel,  Alloy Steel,  Stainless Steel ,  Low Temperature Steel
Seat Insert: VITON/PTFE/RPTFE/PEEK/NYLON/DEVLON/HARD FACING
Gasket:+ GRAPHITE&STAINLESS STEEL
 
FEATURE
Structure: Pig Launching Valve+Pig Receiving Valve
Sealing Type:Soft/Preliminary Metal Sealing and Secondary  Soft  Sealing/Metal-To-Metal
End Connection:  Flanged
Driven Type:  Manual/ Pneumatic/ Electric/ Gas Over  Oil
Application  Field: Natural Gas/ Petroleum/ Offshore  Platform/ Chemicals/ Sewage Treatment