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Pneumatic 8'' 150LB CF8M metal to metal seat triple off set RF connection butterfly valve

Pneumatic 8'' 150LB CF8M metal to metal seat triple off set RF connection butterfly valve

  • Valve type:Butterfly valve
  • Port size:8''
  • Pressure:150LB
  • Material: ASTM A351 CF8M
  • End: RF
  • Operation: Pneumatic operated
  • Application: Water, oil, gas, chemical pipeline
  • Medium : Chemical
  • Working temperature: normal
Product description:
API 609 design standard

Principle of operation:
The Cowinns triple off set butterfly valve provides a bi-directional bubble tight shut-off. This geometry ensures that the disc seal contacts the body seat only at the final shut-off position without rubbing or galling, providing a torque generated resilient seal with sufficient "wedging" to ensure a uniform seal contact.

The triple off set geometry
Offset 1:The shaft is offset behind the seat axis to allow complete sealing contact around the entire seat.
Offset 2:The shaft centerline is offset from the pipe and valve which provides interference free opening and closing of the valve.
Offset 3:The seat cone axis is offset from the shaft centerline to eliminate friction during closing and opening and to achieve uniform compressive sealing around the entire seat.

Cowinns Industry Equipment Co., Ltd
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