Flanged Butterfly Valve Simple Structure
Nov 27, 2017
First of all, because the butterfly plate seal for the soft and hard multi-layer stacked metal ring, with metal density and flexibility of two advantages, both at high ground temperature, have a good sealing function. Second, the structure of the flange seal butterfly valve is only three-dimensional eccentric structure, the valve seat and butterfly plate almost no friction and can be more tight and tight, play a regulatory role. Finally, the valve body is sealed cover, mainly the use of surfacing cobalt-based carbide, its characteristics are strong wear resistance, and the use of long life.
Flange Butterfly Valve, also known as flap valve, is a simple structure of the conditioning valve, can be used for low-pressure pipe medium switch control flange butterfly valve is a closed (disc or butterfly plate) for the disc, around the valve shaft rotation To reach a closed and closed valve, the valve can be used to control the air, water, steam, corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid activities. In the pipeline on the first cut off and save the effect. Flange butterfly valve is a disc-shaped butterfly plate, in the valve body around its own axis of rotation, and then reach the purpose of opening or closing or conditioning.
Flange butterfly valve is mainly through the valve stem moving butterfly plate rolling 90 switch, raw materials have a variety of options, through the pipeline material selection of raw materials for the furnace, gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, chemical Exercise and power generation environmental protection, the construction of water supply and drainage and other engineering systems to transport a variety of corrosive, non-corrosive fluid medium on the pipeline, used to regulate and cut off the media activities. Large diameter flanged butterfly valve may have special requirements above the pipe can be equipped with electric actuators or pneumatic actuators, with electric flange butterfly valve and pneumatic flange butterfly valve to reach the remote control.
Five elements of the flanged butterfly valve:
1. butterfly valve plate installed in the direction of the diameter of the pipeline.
2. butterfly board in the device, the butterfly plate to stop in the closed position.
3. the open position should be determined by the rotation of the butterfly point of view.
4. with a bypass valve flange valve, open the door should be opened before the bypass valve.
5. should be the flange butterfly valve factory installation instructions for the device, heavy weight flange butterfly valve, should be set strong foundation.