Double Offset Flanged Butterfly Valve Ggg40 Ggg50 Di Ci

Double Offset Flanged Butterfly Valve Ggg40 Ggg50 Di Ci

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

With the progress of science and technology, the requirements of various Butterfly Valve, DN350 LUG Butterfly Valve, Flange Triple Offset Butterfly Valve are more refined. We practice the tenet of customer-centered and serve customers wholeheartedly. Owing to fantastic assistance, a variety of high quality goods, aggressive rates and efficient delivery, we love a very good popularity among our customers.

【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.


After years of unremitting efforts, we have been committed to the research and innovation of Double Offset Flanged Butterfly Valve Ggg40 Ggg50 Di Ci. In the overall supply chain and business activities of our company and our traders, we pay attention to protecting the global environment, complying with laws and regulations, respecting human rights, respecting labor, safety and hygiene, ensuring the safety and quality of products and services, maintaining fair transaction order and observing ethics. Not only do we produce traditional standard products, but we continue to adapt to customers' needs and constantly develop new varieties.

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