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electric ball valve can be installed at any section at the upstream end, handle electric ball valve may be installed in any position, if the configuration actuator ( Such as gear box, electric - Pneumatic actuators) The pneumatic ball valve, pipeline must be installed vertically, the valve on the import and export in a horizontal position.
the electric ball valve rust. Material for CF8M electric ball valve in corrosion phenomena appeared in the process of use. Austenitic stainless steel after normal heat treatment, the organization shall be the austenite at room temperature, corrosion resistant performance is very good. In order to analyze the corrosion cause of ball valve, on which the sample is analyzed.
check pneumatic pipeline ball valve nameplate, and pneumatic pipeline ball valve is fully open full close several operations, confirm the valve to work normally, comprehensive review again the all details of the valve, ensure that the valve is in good condition.
remove protective cover on both ends of the valve, check valve body clean, clean the valve body cavity, the pneumatic pipeline ball valve sealing surface shape is the ball, even small debris may also be the sealing surface damage.
electric ball valve has a simple structure, small volume, light weight, material consumption, installation size is small, quick, 90 switch & deg; Reciprocating rotation, low driving torque, etc, used for truncation, connected, regulate medium in pipe has good flow control characteristics and close the sealing performance. Seat sealing performance is good, use the sealing ring made of elastic material, such as teflon structure is easy to be sealed, and the ball valve seal ability increases as the medium pressure increases.
thrust bearings reduce stem friction torque, can make the valve stem long smooth and flexible operation; Such as ptfe material has good self-lubrication, with ball friction loss is small, so the ball valve's service life is long; Bottoms type valve stem and valve stem head convex order to prevent the valve stem, stem seal damage caused by such as fire, convex order between the body and also can form metal contact, to ensure that the valve stem seal.
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