High performance butterfly valve abroad is the 70 's development of a new butterfly valve varieties, from aerospace technology. Its technical characteristics are:
1. Butterfly plate slewing Center and pipe axis and sealing section deviation, in the switch process is not contact with the seal seat, no wear, only in the moment of closure and sealed seat contact.
2. Sealed seat is a flexible sealing structure, the use of medium sealing principle to achieve a reliable sealing effect, completely changed the traditional butterfly valve forced seal principle.
3. The so-called high-performance butterfly valve, its characteristics: long life, Test room environment test life of up to 1 million times, the service life of the geometric level than the median butterfly valve, torque light, compared to the median butterfly valve can be reduced by 30%, the application of a wide range of pressure, working pressure up to 10MPa, can be applied to a variety of media.
The development of the butterfly valve, so that the butterfly valve in a greater pressure level to replace the gate valve, its weight is only 1/3 valve, the price is about the same type of gate valve 2/3, in the industrial field has a wide range of application prospects.