2014年2月17日星期一

The advantages and disadvantages of butterfly valve

      Advantage
     1.Convenience sluicegate 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 outlet at least.
     4.The low pressure, can achieve a good seal.
     5.Good regulation performance.
     6.Fully open the valve seat larger effective flow channel, the fluidresistance is small
     7.The opening and closing torque is small, on both sides of the shaft disc by the media role is basically the same, while the generated torque in the opposite direction, thus opening and closing more effort.
     8.Sealing surface material commonly used rubber, plastic, so thesealing performance is good.
    9.Convenient installation.
    10.The advantages of flexible operation, can choose manual,electric, pneumatic, hydraulic way.
Belt guides
Belt guides
    Shortcomings
    1.Using the small range of pressure and temperature.
    2.The poor sealing.
    Butterfly valve structure can be divided according to the bias plate,vertical plate, inclined plate and the lever type. By sealing the form of soft seal and seal type two. Soft sealing type generally use the rubber ring seal, the seal ring type metal seal used.
    By the connection type can be divided into flange and clamp connections; press can be divided into manual transmission, gear transmission, pneumatic, hydraulic and electrical several.
      Chinabase Machinery is a group of manufacturing facilities, offering one-stop solution for mechanical power transmission products in China. We can supply a full-range of power transmission products, such as chains, Engineering Chain,sprockets and plate wheels, pulleys, gearboxes, motors, couplings, Tyre Coupling,gears and racks. Our product range also covers locking assemblies (clamping elements/locking device),WJ Reducer, taper bushes, QD bushes, bolt-on hubs, torque limiters, shaft collars, motor bases and motor slides, chain detachers, chain guides, universal joint, rod ends and yokes. 
     

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