wafer butterfly valve

butterfly valve catalog.pdf


The valve plate of the butterfly valve is installed in the diameter direction of the pipeline.

In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0° and 90°, and when it rotates to 90°, the valve is fully open. This valve is generally installed horizontally. Butterfly valve is simple in structure, small in size and light in weight, and consists of only a few parts.

And only need to rotate 90 ° can quickly open and close, simple operation, at the same time the valve has good fluid control characteristics.

When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is very small, so it has good flow control characteristics. Butterfly valve has two types of sealing: elastic seal and metal seal.

Elastic seal valve, the seal ring can be set in the valve body or attached to the butterfly plate periphery.

Widely used in: chemical, petrochemical, smelting, pharmaceutical, food and other industries in SO2, steam, air, gas, ammonia, CO2 gas, oil, water, brine, lye, seawater, nitric acid, hydrochloric acid, sulfuric acid, phosphoric acid, and other media in the pipeline as a regulating and intercepting device.


Pressure Temperature Ratings
Work Pressure: 10 bar/16 bar,Class 150
Testing Pressure: API 598                
Working Temperature:-20°C  to 110°C EPDM Seat
-10°C to 80°C NBR Seat
Suitable Media: Water,Oil & Gas
Material Specification:

Part

Material

ASTM

Body

Cast Iron

A126 Class B

Ductile Iron

A536 Gr.65-45-12

DISC

Ductile Iron

A536 Gr.65-45-12

Bronze

B148 C95400

Stainless Steel 304

A351 CF-8

Stainless Steel 316

A351 CF-8M

Shall

Stainless Steel 410

A276 S410 00

Stainless Steel 431

A276 S410 00

Seal Ring

EPDM/NBR


O-Ring

EPDM/NBR


Bushing

PTFE

B62 C83600

Bronze