Triple Offset Butterfly Valves 2017-06-09T14:43:09+00:00

Triple Offset Butterfly Valves

The Triple Offset Butterfly Valves has a metal seated structure that allows this valve to be used for extremely high working pressure and temperature.
Thanks to its triple eccentric structure, externally is applied a seal specific pressure on the shaft driving torque in order to allow the valve disc and seat to form an oblique con seal surface. In this way the leakage (usually caused by ageing, cold-flow characteristics and losing elasticity of the seat) is avoided.
Different face to face available according to your request (example ISO5752 Series 13, EN 558 Series 13).
Furthermore, in order to eliminate mechanical abrasion of seat because of the disc rotary, the disc of the valve has been arranged in order to touch the seat tightly only in fully closed position.
This valve can be supplied with bare shaft ISO 5211 mounting pad connection or can have several operation type: Manual, Worm Gear, Electric, Pneumatic, Hydraulic. In addition it can provide a fireproof stopper driver.
According to your request, the Triple Offset Butterfly Valves can be provided Lug, Wafer or Flanged type.

PRESSURE TEMPERATURE RATINGS

Working pressure 10/16/25/40/63bar
Testing Pressure Shell:15/24/37.5/60/94.5bar Seal:11/17.6/27.5/44/69.3bar
Working Temperature -196 to 550
Suitable Media Water, Oil&Gas

TRIPLE OFFSET BUTTERFLY VALVES MATERIALS LIST

Part Material ASTM
Body Carbon Steel
Stainless Steel
Alloy Steel
Low Temperatare Steel
ASTM A216 WCB
ASTM A351 CF8
ASTM A217 WC6
ASTM A352 LCB
Disc Carbon Steel
Stainless Steel
Alloy Steel
Low Temperatare Steel
ASTM A216 WCB
ASTM A351 CF8
ASTM A217 WC6
ASTM A352 LCB
Shaft Stainless Steel 304
Stainless Steel 431
ASTM A276 S30400
ASTM A276 S43100
Packing Flexible Graphite
O-Ring EPDM / NBR
Disc Seals Graphite+SS304
Triple Eccentric Butterfly ValvesTriple Eccentric Butterfly Valves 2
Download the datasheet

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