High Pressure Worm Gear Three Eccentric Butterfly Valve For Steam 2" - 60"

High Pressure High Temperature Metal Seated Worm Gear Three Eccentric Butterfly Valve For Steam Applications

Quick Info:

• Sizes from 3” to 157” and 80 mm to 4 000 mm

• Operating pressures from PN 2.5 to PN 250 and CL 125 to CL 1 500

• Operating temperatures from cryogenic to +1 000°Celcius

(both cold and non-cold box designs supplied for cryogenic operation)

• Available configurations include:

wafer, lugged, double flanged, buttweld or cryogenic

• Stainless steel and alloy butterfly valves

• High temperature butterfly valves

• High pressure butterfly valves

The Triple-Offset Geometry

OFFSET 1: The shaft is offset behind the seat axis to allow complete sealing contact around the entire seat.

OFFSET2: The shaft centerline is offset from the pipe and valve which provides interference free opening and closing of the valve.

OFFSET3: 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.

Design Features:

CoCr alloy hardfaced seat

Standard laminated resilient disc seal to 425 ℃

Zero Leakage seat tightness per API598

No cavity for build-up of solids.

One-piece shaft

Shaft bearings

Low emission shaft seals