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TRUNNION MOUNTED BALL CONSTRUCTION

These have the ball mounted on trunnions supported in body bearings above and below the ball. sealing is achieved by spring loaded piston type seats which shut off flow when line pressure acts on the upstream seat.
This design provides automatic rilief of cavity overpressure.
trunnion mounted designs are available in sizes above 2" size and are generally used for higher pressure.
Three pieces body, blow-out proof stem, antistatic device, fire-safe designed and certified, double block and bleed, self relieving.
Execution : full or reduced bore
Materials : carbon steel, stainless steel, special alloys resilient or metal seated

SIDE-ENTRY TYPE - RESILIENT SEATED

size :  from 2" to 36"
ends : flanged or butt welding
class : from 150 lbs to 2500 lbs

TOP-ENTRY TYPE

size :  from 2" to 24"
ends : flanged or butt welding
class : from 150 lbs to 2500 lbs

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