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Cowinns Industry Equipment Co.,Ltd
No.127 Room No.748 Changjiang Road,High-Tech District,
Suzhou City, Jiangsu Province, zip:215128 China
Tel:+86 512 6878 1993 
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Worm gear 6 '' 1500LB A182 F51 RF ball valve mounted on trunnion

Worm gear 6 '' 1500LB A182 F51 RF ball valve mounted on trunnion

  • Type of valve: ball valve
  • Door size: 6 ''
  • Pressure: 1500lb
  • Material: A182 F51
  • End: RF
  • Operation: worm gear
  • Application: means of corrosion
  • Medium: means of corrosion
  • Working temperature: normal

Product description:

Features:

Side entrance design

Anti-expulsion stem: The stem is made separately from the ball. The lower end of the stem is designed

with a full shoulder to be burst-proof.

Antistatic Device: the antistatic device is a standard feature of the Cowinns ball valve.

instruction of the trunnion ball valve:

Over it a ball with a free floating ball, the ball is forced against the descending flow

seat by the pressure of the fluid acting on the entire surface of the ball.

From the resulting torque is a product of the frictional force and seat ball

contact radius, the breaking torque at opening substantially increases with the

increasing differential pressure and / or valve size.

This means that above a certain size and / or a certain differential pressure the

necessary the opening torque in opening will be so high that it will be impossible

operate the valve.

Over it a ball valve mounted on a pin, in which the ball is fixed and the seat rings are

floating, the fluid load due to the differential pressure acting on the surface of

the the ball is transported by the bearing, while the necessary seat action is obtained

of the action of fluid pressure on a relatively small annular area of ​​the seat

rings.

 

trunnion ball valve .jpg

ball mounted on pin 

floating ball valve.jpg

floating seat ring

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