Cast Steel Double Offset/Triple Offset High Performance Butterfly Valve Supplier

Cast Steel Double Offset/Triple Offset High Performance Butterfly Valve Supplier

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

Our primary purpose is to give our shoppers a serious and responsible company relationship, giving personalized attention to all of them for 24 Inch Butterfly Valve, Triple Offset Butterfly Valve, Forged Ball Valve. We always keep providing high-quality products and satisfactory services to our customers with perfect service network and skilled service personnel. On the principle of mutual benefit and faithful functioning, we are ready to expand our scope of business and establish sincere relationships with clients from around the world. We take quality as the foundation, development as the driving force, honesty and pragmatism as the basis, and bring value to customers as our responsibility to realize the long-term stable development of our company.

【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.


Since we use standard assembly line production equipment, our Cast Steel Double Offset/Triple Offset High Performance Butterfly Valve Supplier is more formal, reliable in quality and inexpensive. The management team of our company has a profound professional technical background and is constantly pushing forward the development of related applications. Since its establishment, our company has always insisted on relying on technological innovation to create quality and winning unlimited business opportunities by virtue of honest management.

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