Wafer Triple Offset Butterfly Valve

Wafer Triple Offset Butterfly Valve

Basic information
Basic information
This valve is used in the water supply and drainage system as the opening and closing equipment.
Features
Features
1. Can be installed in any position;
2. Zero leakage design;
3. Applicable to high-temperature conditions;
4. Small opening torque, flexible and convenient.
Principle
Principle
This valve adopts the triple offset principle design, which makes the space motion track of the sealing cover reach ideal, and the sealing cover has no friction and interference between each other, and the sealing material is selected properly, so that the sealing, corrosion-resistance, high-temperature resistance and wear resistance of the valve are guaranteed reliably.
Installation and Commissioning
Installation and Commissioning
When installing, close the valve first and then install it to prevent damage to the sealing surface of the disc. The two flanges should be parallel so that the contact force between the valve and the flanges is uniform after installation. The inner hole of the pipeline flange shall not be too large, and shall be no more than 5mm, in case the pressure position of the pressure plate is wrong and deformation failure occurs. For specific use, please consult ZhengFeng Valve Group.

Part

Material

Standard

Body

Ductile Iron

EN 1563/DIN 1693

Bonnet

Ductile Iron

EN 1563/DIN 1693

Trim

Stainless Steel 431

EN10088-1/ASTM A959

Seat

Stainless Steel 431

EN10088-1/ASTM A959

Diaphragm

EPDM / NBR

ISO 4633

Electric Actuator

Honeywell

UL94-5V 

For the materials options not listed, consult factory.

ZhengFeng manufactures valves in more than 50 different alloys.

Product scope, Standards & Materials
Size Range: 2"~12"
Pressure Rating: 10bar ~ 25bar
Face to Face Dimensions: API 609
Flange End Dimension: ANSI B16.5
Inspection and Test: API 609

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