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wafer butterfly valve using a "U" shaped stainless steel ring, the precision elastomeric seals and polished dimensional eccentric butterfly plate in contact. Solve the conventional butterfly valve in the opening and closing moments 0 ° ~ 10 ° is still in sliding contact with the sealing surface of the shortcomings of friction, to achieve the disc sealing surface in the opening moments is isolated, close contact with the sealing effect, to extend the service life, the sealing performance of the most good purposes. Which is widely applied to the medium temperature ≤ 550 ℃ metallurgy, electric power, petroleum, chemical, air, gas, combustible gas, and water supply and drainage pipes and other corrosive media, is to regulate fluid flow and truncation of the best devices.
Feature
1, the valve structure is simple, compact, light weight, easy to install and remove, easy maintenance;
2, the valve made of stainless steel "U" shaped ring, with a certain degree of flexibility in terms of high temperatures, low temperatures, which were excellent and disc sealing
3, the three-dimensional butterfly eccentricity rigorous calculation, "U"-ring and disc almost no friction, long life, and has a more closed more tightly function;
4, the disc sealing surface using cobalt-based alloy welding, sealing surface wear resistance and long service life;
5, the unique structure of the butterfly, "switch" just turn the valve stem 90 ° to complete. Flexible operation, convenient, energy, without affecting the level of media pressure, sealing performance and reliable;
6, high temperature, low temperature resistance, corrosion resistance.
The main technical parameters
Nominal diameter DN (mm) 50 ~ 1200
Nominal pressure PN (MPa) 0.6 1.0 1.6 2.5 4.0
For medium water, steam, oil, acids and corrosive.
Drive Manual, worm gear, pneumatic, electric
Suitable temperature carbon steel: -29 ℃ ~ 600 ℃ -40 ℃ ~ 600 ℃ stainless steel
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