Carbon Steel/Stainless Steel/Duplex Stainless Steel/Double Flange /Wafer Triple Offset Butterfly Valve

Carbon Steel/Stainless Steel/Duplex Stainless Steel/Double Flange /Wafer Triple Offset 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

We have been commitment to supply the competitive price, excellent products and solutions high-quality, at the same time as fast delivery for Gear Butterfly Valve, Rubber Lined Butterfly Valve, DN350 LUG Butterfly Valve. After years of hard work, we have accumulated a lot of experience and improved the production process. We believe that with the continuous improvement of company management, we can provide customers with better products and more satisfactory services. Our global sales service network are all over the world, so the delivery time is short. Our company has a complete service system, and our customer service team with rich sales experience and high professional quality provides one-to-one services to consumers to solve the problems occurred when purchasing.

【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.


We updated and perfected the product structure of Carbon Steel/Stainless Steel/Duplex Stainless Steel/Double Flange /Wafer Triple Offset Butterfly Valve in order to comply with market changes and ever-increasing requirements of customers. The mission of our firm should be to provide the best high quality goods with finest price tag. We will create great achievements with full enthusiasm and we are confident in the future.
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