Pishon Valve Co.,Ltd
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Full Welded Ball Valve
FULLY WELDED type ball valves are cut off devices suitables for use both on natural gas distribution network and for liquid service when high performance on thightness and low pressure drop are required.
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- Product design and scope
- Design standard：API 6D
- Length of structure:API 6D. For product beyond the scope of the standard, it shall be manufactured by specifications in BTL standard or user`s requirements.
- Flange connecting end：ASME B16.5/ASME B16.47
- Butt welding connecting end：ASME B16.25/ ASME B31.8
- Wall thickness：ASME B16.34
- Fireproof test：API 607/API 6FA
- Inspection and test：API 6D
- Pressure and temperature rating：ASME B16.34
- Product scope：NPS 4″～NPS 60″,CL150～CL1500
- Main body material:A105、LF2、F304、F316、F304L、F316L、F51etc.
- Valve seat material:PTFE、RPTFE、NYLON、DEVLON、Derlin、PEEK、PPL、HNBR、FKM or metal hard seal etc.
- Drive device:handle, worm wheel, electric, pneumatic, pneumatic- hydraulic, electro-hydraulic, etc.
Main features of these valves are:
- trunnion mounted ball
- bubble thightness with valve on closed position
- low pressure drop
- possible installation on both flow directions
- high reliability
- construction according to standard ASTM - ASME - NACE - API -ANSI