1, butterfly valve has the advantages of simple structure, small volume,
light weight, material consumption, installation of small size, fast switching,
90 degree reciprocating rotary, the driving characteristics of torque, for the
truncated, switched on, adjust the line of medium, has good sealing off fluid
control features and performance.
2, butterfly valve to transport slurry,
accumulation of fluid in the pipe mouth at least. Low pressure, can achieve a
good seal. Good regulation performance.
3, streamline design of the disc, the
fluid resistance loss is small, it is a kind of energy-saving products.
4,
pole structure of the stem to pass, after quenching, with good mechanical
properties and corrosion resistance, scratch resistance. Butterfly valve opening
and closing only when the valve stem rotates without lifting operation, easy to
damage the stem packing, sealing and reliable. And the butterfly plate taper pin
fixed, extended end to prevent out of design, in order to avoid accidental
fracture junction in the stem and disc collapse when the valve stem out.
5,
connections are flanged, wafer connections, welded connections and lugs on the
clip connection.
Drive in the form of manual, worm gear, electric, pneumatic,
hydraulic, electro-hydraulic linkage executing mechanism, can realize remote
control and automation.
Advantage
1, convenient opening and closing
rapidly, fluid resistance small, labor saving, can often operate.
2, has the
advantages of simple structure, small size, short length of the structure, small
volume, light weight, suitable for large diameter valves.
3, to transport
slurry, accumulation of fluid in the pipe mouth at least.
4, low pressure,
can achieve a good seal.
5, good regulation performance.
6, fully open the
valve seat channel effective flow area is larger, the fluid resistance
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