Tri-off set butterfly valves

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Basic Info

Payment Type:	T/T or Western Union

Product Description

The self-centering disc:

The construction guarantees the optimal position of the laminated seal against the seat. Jamming due to thermal expansion is eliminated
Torque transmission using keys
The disc is keyed to the shaft not pinned, providing balanced torque transmission and eliminating the danger of pins shearing off
Ideal lamination and disc design
The strong disc with its elliptical supporting surface offers the best fixing of the lamination. Bubble tightness is given as a result of the special machining of the lamination
Supporting bearing bushings
The optimal position of the bearing reduces the risk of the shaft bending. This guarantees bi-directional tightness at maximum differential pressure

General characteristics:

Triple eccentric design
Metal seating
Pressure classes according ANSI 150/300/600/900 and
PN 10/16/25/40/63/100
Full bi-directional shutoff as per API 598 and/or DIN EN 12266-1
Temperature range up to 815°C
Size range 2" - 72" (DN 50-1800)
Friction free opening and closing
Vacuum tight
Laminated seal and seat made of stainless steel
Anti blow-out shaft API 609
Steel casting, stainless steel, special alloys
Fire-safe acc. to BS 6755 and API 607 4th ed. for both flow directions
Fugitive emission control acc. to "TA-Luft II"
Optional double block & bleed design
Special customer requirements on request

The construction guarantees the optimal position of the laminated seal against the seat. Jamming due to thermal expansion is eliminated

Torque transmission using keys

The disc is keyed to the shaft not pinned, providing balanced torque transmission and eliminating the danger of pins shearing off

Ideal lamination and disc design

The strong disc with its elliptical supporting surface offers the best fixing of the lamination. Bubble tightness is given as a result of the special machining of the lamination

Supporting bearing bushings

The optimal position of the bearing reduces the risk of the shaft bending. This guarantees bi-directional tightness at maximum differential pressure

Triple eccentric design

Metal seating

Pressure classes according ANSI 150/300/600/900 and

PN 10/16/25/40/63/100

Full bi-directional shutoff as per API 598 and/or DIN EN 12266-1

Temperature range up to 815°C

Size range 2" - 72" (DN 50-1800)

Friction free opening and closing

Vacuum tight

Laminated seal and seat made of stainless steel