What are the differences and advantages between O ball valve and V ball valve?
5, high reliability1, the ball and valve seat a pair of sealing pairs, there will be no abrasions, rapid friction and other failures;2, stem into the built-in type, to eliminate the stem under the action of fluid pressure may be caused by the packing gland release flying accident hidden trouble;3 、 adopt antistatic and fireproof structure ball valve, which can be used to transport petroleum, natural gas and gas pipelinesV type ball valve structure of a right angle turn, can achieve flow regulation, according to the V type angle V type sphere, realize different proportions, V type ball valve and valve actuator and positioner supporting the use, the ratio can be adjusted V type valve adjustment for a variety of occasions, with a rated flow coefficient large, adjustable ratio, good sealing effect, regulate the performance of zero sensitivity, small size, can be vertical horizontal installation. For control of gas, steam and liquid medium.V type ball valve for rotary type rectangular structure by V type valve, pneumatic actuator, positioner and other accessories; there is a similar more than 100 of the inherent flow characteristics; dual bearing structure, the starting torque is small, with excellent sensitivity and speed sensors, the shear capacity of strong.
2 、 the switch is quick and convenientThe ball just rotated 90 degree is completed fully on or off, so it can achieve rapid opening and closing.3, good sealing performanceMost of the valve seat by four poly ethylene (PTFE) elastic materials, commonly known as soft sealing valve. Soft sealing valve has good sealing performance, roughness and machining precision and sealing surface of the valve is not very high.4, long lifeAs a result of polytetrafluoroethylene (PTFE or F4) has good self lubrication, and friction coefficient of the ball is small. Due to improved processing technology to reduce the ball roughness, thereby greatly improving the service life of the ball valve
Quality solutionsO type ball valve with floating or fixed type design, the relative movement of the parts are made of small friction coefficient of self-lubricating material, so the operating torque is small, in addition to the long-term sealing and sealing grease, making the operation more flexible, its advantages are as follows:1, fluid resistance is smallGeneral valve diameter and diameter shrinkage of two kinds of structure, no matter what kind of structure, valve flow resistance coefficient are relatively small. The conventional ball valve for the straight through, also called full flow type ball valve, channel diameter is equal to pipe diameter, friction resistance loss is only the same length of pipe. All valves, this valve fluid minimum resistance. There are two ways to reduce the resistance of pipeline system: one is to reduce fluid flow, is to increase the diameter and the valve diameter, it will greatly increase the cost of the system. The two line is the local resistance reducing valve, ball valve is the best choice.
