2014年2月25日星期二

The Comparison and disadvantage of plug valve

      1.Raise the stem wedge plug valve, switch has no friction, ensure that the valve is easy to operate, zero leakage and long life.
     Open valve when the valve from the valve seat to the upward movement, then friction free to rotate 90 degrees to the valve openclose the valve spool; first, friction free to rotate 90 degrees, and then squeeze the completely closed to the seat to. In the process of opening and closing the valve between the valve core and valve seat, always without friction.
     2.Double off and automatic check valve seal device (DBB function,with ABV automatic discharge system).
    3.The top and bottom are end cover, fast online maintenance andrepair;
In line with the case of medium, only need to close the valve, canremove the bottom end cover, can quickly remove the sand,welding slag and other hard particle removal, repair and replacement and convenient for the valve seal.
Timing Belt Pulleys
Timing Belt Pulleys
     Valve defects:
     1.The gate in the opening and closing process friction always exist,so the operation torque is large, and the sealing surface is easy to generate scratches in the gate and the seat, the valve leakage;
     2.No self leakage device, (even through the two gate to install a small valve to achieve this function, also cannot achieve the function of automatic detection);
    3.For containing impurities such as sand, medium, deposited on thevalve at the bottom, so that the gate can not be completely closedin place, resulting in valve leakage is very serious, (this is the fatal weakness of the gate valve.).
     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,Stainless Steel ChainAgricultural Chainsprockets and plate wheels, pulleys, gearboxes, motors, couplings, Tyre Couplinggears and racks. Our product range also covers locking assemblies (clamping elements/locking device), 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. Our products are used in many different industry sector, like in automation engineering, drive engineering, conveyor technology, assembly and handling technology, packaging industries, the beverage, food and medical engineering, pharmaceutical production, and laboratory equipment.
     Chinabase is able to offer custom, cost-optimized solutions in accordance with customer drawings - such as ready-to-install machine parts and profiles - in addition to our standard products. Our internal Application Technology department and field staff are happy to provide free advice on custom solutions.

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