3 inch Butterfly Valve


What is 3 Inch Wafer Type Butterfly Valve?

3 inch Wafer Type Butterfly Valve is a flow control mechanism that uses a rotary disk to control the flow medium in the system. The disk remains in the passage, but since it is so thin, it gives very little resistance to the flow.

The most common type of butterfly valve arrangement is a centric or a concentric butterfly valve. This type of butterfly valve consists of the stem which travels along the middle line of the disk in the center of the pipe bore and the seat is inside diameter of the body of the valve. This no offset valve configuration is also known as a resilient-seated valve as it depends on the flexibility of the seat rubber when the flow is closed, for the reliability of the seal. In this type of valve, the disk first interacts with the seat at about 85° for a 90° rotation. Concentric butterfly valves are widely used in low-pressure applications.

Dimensions & Weight of 3 Inch Butterfly Valve

Pressure Rating  Face to Face Dimension(in mm) Weight
CLASS 150 114 46 46 8

Applications of 3 Wafer Type Butterfly Valves

  • General Industrial
  • HVAC
  • Water
  • Chemical/Petrochemical Processing
  • Food and Beverage
  • Power and Utilities
  • Pulp and Paper
  • Marine and Commercial Shipbuilding

Features of 3 Inch Wafer Type Butterfly Valve:

  • Suitable for both gaseous and liquid service.
  • Phenolic Backed Seat for superior sealing and long term use.
  • Single-piece stem design assures even torque distribution.
  • Positive shutoff bi-directionally.
  • Direct mount automation.

Material of 3 Inch Butterfly Valve:

No Part Material
1 Body GGG50 / ASTM A126 B
2 Seal Ring EPDM / NBR
3 Pin ASTM A276 304
4 Disc ASTM A351 CF8
5 Stem ASTM A276 420
6 Stem Packing EPDM
7 Bolt ASTM A193 B8
8 Nut ASTM A194 8

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