Wafer Stainless Steel Double Triple Offset Pneumatic Butterfly Valve

Wafer Stainless Steel Double Triple Offset Pneumatic Butterfly Valve

1. When opening or closing, there is no friction between the disc and the sealing surfaceof the Wafer Triple Offset Butterfly Valve;
2. The valve can be installed in any location;
3. Zero leakage design;

Product Details

Whether our EPDM Butterfly Valve, Butt Weld Triple Offset Butterfly Valve, DN350 LUG Butterfly Valve is standard design or customized according to customers' needs, it is known all over the world for its high performance, high reliability and innovation. Our company continues to innovate in research and development, and has a skilled and experienced professional team to offer customers with best service. Our company insists on scientific management, continuously improves the management model, promotes customer satisfaction and enhances competitiveness. We will then deliver our greatest price ranges to you. We have our own registered brand and our company is developing rapidly owing to high quality products, competitive price and excellent service.

【Product Introduction】:

Wafer Triple Offset Butterfly Valve shown in the figure is a worm gear made of carbon steel material. The seat sealing material can be a full metal ring, and can be made of a graphite type laminated metal, which is elastic. The PTFE seat seal is a flexible seat butterfly valve. This seat can be design and produced as zero leakage type and suitable for corrosive medium.It is easy to produce and costs less than all metal seat butterfly valves.


【Application Of PTFE Seal-ring】:

PTFE people aslo call it Teflon.It has high temperature resistance, corrosion resistance, excellent electrical insulation, aging resistance and other characteristics.Resistant to the corrosion of almost all chemicals, but by molten alkali metal erosion. ZFVALVES Butterfly valve often uses PTFE as the valve seal-ring.PTFE has become the main corrosion resistant material in petroleum, chemical and textile industries due to its excellent corrosion resistance.As Seal ring the working temperature is -29℃~150℃.

*  PTFE Mechanical property:

   σb (MPa):20.7~27.5

   δ5 (%):250~350

   αk (J/cm2):>98.1

   HARD(HB):50~65D

* Thermal properties:

   Distortion temperature:1.86MPa:55℃; 0.46MPa:120℃

   Martin temperature:250℃


美标对夹蝶阀IMG_5704(1)


How to choose the right Butterfly valve】:

1) According to the nature of the working medium: working pressure, working temperature, corrosion performance, whether it contains solid particles, whether the medium is toxic etc to choosing the right material.

2) Installation size and dimensions: nominal diameter, connection to pipe and connection dimensions, dimensions or weight restrictions.

3) Select the appropriate operation mode according to the actual situation.

4) The maximum and minimum flow requirements; pressure drop for normal flow; pressure drop at shutdown; maximum and minimum inlet pressure for the valve.

5) Select the correct connection according to the reserved location of the pipeline.

The final control of the pipe is the valve. If you have any questions regarding valve selection, please contact us.ZFV will give you the most professional advice and the most suitable choice.


In the future, we will continue to increase our efforts to introduce technology and professional talents to make the product quality better, so as to meet the needs of domestic and foreign enterprises for Wafer Stainless Steel Double Triple Offset Pneumatic Butterfly Valve. With the business concept of innovation and perfection, we constantly improve our ability to manufacture and publicity to serve our customers sincerely. We always hold the tenet of quality first and customer first.

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