Ball Industrial Valves on the market a lot of more phyletic, many enterprises can not correctly distinguish, so don't know how to purchase, so the manufacturer will take you to distinguish between today. 。 On the first valve of 1 in the form of elastic ball valve structure to distinguish: ball valve is elastic. High temperature check valve belongs to a kind of automatic valve, main effect is to prevent the backflow medium, to prevent the pump and drive motor reversal, and the discharge of the container medium. American standard check valve according to the conditions of use, Industrial Valves can be all-metal structure, can also be embedded in disc shelves rubber mat or rubber ring form. Lift check valve can be divided into main swing check valve ( In accordance with the center of gravity rotating) And lift check valve ( Move along the axis) 。 And a ball valve seat is made up of metal materials, sealing pressure ratio is big, medium voltage dependence cannot seal itself to be imposed by force. 2. Floating ball, floating ball valve under medium pressure, can produce a sphere of displacement and pressure outlet, ensure that seals the outlet seal surface. Simple structure of the floating ball valve, good sealing, but the load ball export ring by all the working medium, so the ring material can be considered to be a sphere under medium workload. 3. Fixed ball: the ball Industrial Valves is fixed, no pressure does not produce move. Fixed with floating seat ball valve, the pressure medium, have described the seat move pressure in the seal ring of the ball, to ensure the seal. In the second. Distinguish between three-piece pressure than and two-piece ball valve is much higher. Mainly three valve outside the four bolts, have very good fastening effect. Third structure of the combination of the three valve 1 is composed of three parts, as described in the bonnet and in the middle on both sides of the body, from three different ball slice and two-piece ball valve ball place easily remove maintenance. 2. Two-piece ball valve is made up of two parts, in the same type of the ball, the ball diameter and tube size of good sealing effect, easy to teardown than ball valve. Three type ball valve, ball, PTFE ring, lock nut of the ball diameter than the diameter of a pipe, internal integration of similar Yu Guangshi ball slightly smaller. Say so at the time of purchase, the reasonable method is according to our country's enterprises to develop their own situation and needs, and can choose a suitable valve.
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