Top entry trunnion mounted ball valves featuring with integral body, top entry trunnion mounted ball. This type of valves 
gives convenient of in-line repair or replacing valve internal components without removing the body from the pipeline. The 
seat seal design uses unique two-level soft sealing and metal to metal sealing to form triple sealing. The seat piston is 
designed after accurate calculation to ensure sealing reliability with small open/close torque and easy operation. The valve 
is widely used in the nature gas and oil pipeline, the industries of petrochemical, medicine, city constructions, etc.

Applicable Standard
Design Standard:     API 6D, ASME B16.34, BS 5351, API 608, MSS SP-72
Face to Face:          API 6D, ASME B16.10
End Flange:             ASME B16.5, ASME B16.47
Buttwelding Ends:    ASME B16.25
Inspection and Test: API 6D, API 598

Design Features
Full port or reduced port
Integral body design
Blowout-proof stem
Top entry, trunnion mounted ball
Emergency sealant injection
Cavity pressure self relief
Double block and bleed structure
Fire safe design to API 607 / API 6FA
Anti-static to BS 5351