Tops type cleaning eccentric half ball Features: 1, the pressure loss is small: fully open water loss is zero, the flow channel completely smooth; cavity self-cleaning, the valve 90-degree rotation, automatic washing the body cavity, the medium hybrid It was clean and the media is not deposited in the valve chamber. Hemispherical ball circulation has the highest Cv value, enhance the efficiency of the pump system, erosion and reduced to a minimum. 2, anti-wear particles: the use of the principle of double eccentric in a closed process, just before their eyes tee ball cap at the last minute, without the formation of friction; and a seal ring surfacing wear seat on the self-lubricating alloy, difficult wear, can not easily be washed; knife-shaped ball with a wipe clean the mouth and shearing between the spherical cap and the seat was difficult to scale. 3, sealing reliable automatic compensation: positive pressure, the use of eccentric principle, the ball and seat more closed more tightly, resulting in a good seal; when back pressure, floating seat under pressure effect, the seat automatically to the ball Push tight, the higher the pressure, the valve seat piled more tightly to the ball, resulting in a good seal; can maintain long-lasting tight seal, can adapt to the harsh conditions. In the long-term use, the valve seat seal if worn or damaged in spring seat automatically pushed tight to the ball, resulting in a good automatic compensation. 4, suitable for high-velocity media: because the ball hidden in the side of the valve chamber is formed through way no flow resistance, strong fixed eccentric crank, no vibration at high velocity medium, no noise. 5, long life switch easily: no wearing parts, due to the eccentricity of the action, the valve opening and closing process sealing surface of the ball and seat completely out of the seat between the spherical surface of the spherical cap do not scratch frictionless rotation, effective The reduced operating torque twist, lightweight operation; valve automatic compensation function, greatly improve the life of the valve. 6, easy maintenance: This valve design coat, ball cap and support from the top into the valve ball; when you just need to open the bonnet hanging ball cap and branched sphere can be repaired and sealing rings and other accessories, do not have the whole Remove the valve from the pipeline to it to underground pipelines, in particular the nuclear industry has brought great convenience with ball. 7, the valve can remain in the pipeline maintenance work in the media as appropriate, will not cause waste of energy; it will relieve a lot of pre-consumer auxiliary work, so maintenance becomes more simple. 8, in certain cases, this valve during the repair period may not affect the normal operation of the pipeline system, as long as the assembly after removing the ball quickly closed catchy can immediately resume operation of pipelines under pressure to make efficiency valve repair due reduce losses to a minimum.