This butterfly valve adopts U stainless steel sealing ring. The exact elastic sealing ring contact with polishing butterfly board and three-dimension eccentricity sealing area which lead to the high capability technology parameter of high temperature, high pressure and low temperature. So it is widely used to smelt metal, electric power, petroleum, chemic industry ， air, gas and flammable gas which medium temperature is lower than 600°(, what is more, it is also the best device to adjust flux and truncate liquid for medium pipeline.

Characteristic

1  The structure is simple and compact, the weight is light, easy to setting and take-down, maintain is convenient.

2  With adopting U stainless steel sealing ring it has definite elastic and butterfly board has excellent sealing feature whether in low temperature or high temperature.

3  The three-dimension eccentricity distance is passed by the strict account. U stainless steel sealing ring and butterfly board are hardly frictional and the sealing function is to be more closed more tight.

4  The butterfly board adopt jig welding horniness alloy which lead to the sealing face abrasion resistant and the service life is long.

5  Structure is special, “on-off” is easy, agile, laborsaving and convenient operation, effect of medium pressure is small, credible sealing feature and long use life.

6  High temperature, low temperature and erode resistant.

feature parameter of “U” type series metallic hard sealing butterfly valve