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The Practical Effect Of Gate Valve

Sep 05, 2017

     Gate Valve headstock is the gate, the movement direction of the gate and the direction of the fluid, the gate valve can only be open and full off, can not be adjusted and throttling. The gate has two sealing surfaces, the most commonly used mode gate valve two seals form the wedge shape, the wedge angle with the valve parameter and the different, usually is 50, the medium temperature is not high when 2°52 '.Gate Valve

     The wedge-type gate valve can be made into a whole, called a rigid gate plate, can also be made to produce micro-deformation of the brake board to improve its process, to make up for the sealing surface angle in the process of the deviation generated, this kind of gate is called the Elastic Gate plate.Gate Valve

     Type of gate valve, according to the sealing surface configuration can be divided into wedge-type gate valve and parallel gate plate gate valve, wedge-type gate valve can be divided into: Single gate plate, double gate plate and elastic gate plate; parallel Gate plate gate valve can be divided into single gate plate and double gate plate. According to the stem of the thread position division, can be divided into Ming rod gate valve and dark rod gate valve two kinds. When the gate valve is closed, the sealing surface can only rely on the medium pressure to seal, that is, depending on the medium pressure to press the sealing surface of the brake plate to the other side of the valve seat to ensure sealing surface, this is the self sealing. Most of the gate valves are forced seal, that is, when the valve is closed, it is necessary to force the gate to be pressed to the seat by external forces to ensure sealing of the seal surface.Gate Valve

    The gate of the floodgate valve is operated in a straight line with the stem, called the lifting Rod gate valve (also known as the Ming Pole Gate valve). Usually, there is a trapezoidal thread on the lifter, through the nut on the top of the valve and the guide groove on the valve body, turning the rotation movement into a straight line motion, that is, turning the operation torque into operational thrust.Gate Valve