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Common Malfunction Of Butterfly Valve
May 24, 2017

In the continuous use of rubber elastomer in butterfly valve, tear, wear, aging, perforation and even shedding occur. While the traditional hot vulcanization process is difficult to adapt to the needs of the site repair, repair to use a special equipment, a lot of heat and energy consumption, time-consuming and laborious. Today, the use of polymer composite materials to replace the traditional methods, the most widely used is the blue technology system. Its products have excellent adhesion and excellent anti-wear, tear-resistant performance, to ensure that after the repair to reach or even exceed the new parts of the use cycle, greatly reduce downtime.


1, the use of pressure and operating temperature range is small.

2. Poor sealing.

Butterfly valve According to the structure of the form can be divided into offset plate, vertical plate, oblique plate and lever type.

According to the sealed form can be soft seal type and hard seal type two kinds. The soft seal type generally uses the rubber ring seal, the hard seal type usually uses the metal ring seal.

According to the connection type can be divided into the flange connection and the clamp type connection, according to the transmission mode can be divided into manual, gear transmission, pneumatic, hydraulic and electric several.

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