health type butterfly valve for opening and closing part of the disc disc, the valve body around its axis of rotation, so as to realize the opening and closing of the valve or adjustment, referred to as the butterfly valve. Butterfly valve opening and closing Angle usually less than 90 degrees. Butterfly valve and the butterfly is no self-locking force. In order to locate the butterfly plate, the worm gear reducer shall be installed on the valve stem. The use of worm gear reducer can not only make the butterfly plate with self-locking ability, make the butterfly plate in any position to stop, but also can improve the performance of the valve. Industrial butterfly valve features a large range of resistance to high temperature and high pressure, large nominal diameter, the body for carbon steel, with a metal ring instead of rubber ring. High temperature butterfly valve USES the steel plate welding and become, is mainly used for high temperature flue gas pipeline and gas pipeline of the medium.

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