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Different Ball Valve Parts

Source:http://www.flowxgroup.com/Update Time:2014-06-13Hits:

Ball valve points are: the floating ball valve, the fixed ball valve, track ball, v-shaped ball valve, three-way ball valve, stainless steel ball valves, forged steel valves, sulfur discharge ball valve, ball valve, three-way ball valve, pneumatic ball valves, electric ball valves, card sets of ball valves, welding ball valve. Many of these valves are used for electric actuators .

Floating ball valve parts: Simple floating ball valve parts, sealing good, but the ball valve parts work under medium load to export all sealing ring, so want to consider to seal material can withstand the working load of sphere medium, under high pressure shock, the ball valve parts migration may occur. In this structure, is generally used in low pressure ball valve.

The fixed ball valve parts: with fixed ball, the valve will not move after compression. Ball valve parts often include bearing; the operating torque is small, suitable for high pressure and large diameter of the valve. To reduce the number of ball valve operating torque and increase the reliability of the sealing, appeared in recent years, oil seal ball valve, both betting special lubricant between the sealing surface, in order to form a layer of oil film, which increases the sealing, and reduce operating torque, suitable for high pressure large diameter ball valve.

The elastic ball valve parts (i.e. the track ball valve): ball valve ball is elastic. Ball and seat sealing ball valve parts are manufactured metal materials, sealing pressure is very big, relying on the pressure of the medium itself already could not reach the requirements of sealing, must exert external forces.

Electric ball valve parts short, only by a few parts, information consumption province; Small volume, light weight, small installation size, small drive moment, pressure regulating valve, easy to operate, agile, only need to rotate 90 ° can rapid opening and closing. And at the same time has good flow regulating effect and also closed sealing characteristics, in the category of the application of large and medium caliber, low and medium pressure, installation of the electric ball valve electric or pneumatic actuators are leading the market.

Electric ball valve is in full open position when the butterfly plate thickness is the only resistance when the medium flows through the body, so by what happens to the valve pressure drop is small, so it has good flow control characteristics. According to the ball valve parts, electric ball valve seal and metal sealing machine has two sealing type. Elastic sealing valve, sealing ring can be embedded in the body or attached to the butterfly plate peripheral. Take the metal sealing valve generally live longer than elastic sealing valve, but it's hard to do complete seal. Metal sealing can adapt high working temperature; elastic seal has the disadvantage of being limited by the temperature. It is important to choose the right size and type of the ball valve with proper ball valve parts. Principle of electric ball valve parts especially suitable manufacturing large diameter valves. Electric ball valve not only in oil and gas, chemical industry, water disposal industry widely applied, but also used in cooling water system of thermal power plants.

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