linear bearings

Floating ball valve structure characteristics

by:AIRWOLF     2020-05-23
The valve open and close is often identified by the position of the handle, the handle and open the valve, the pipeline parallel vertical to close the valve. But in ordinary ball valve handle and stem connection is a flat square, easily due to handle with the valve stem connection error the wrong operation of the valve, and on floating ball valve 1, to prevent wrong operation handle of the valve open and close is often identified by the position of the handle, the handle and open the valve, the pipeline parallel vertical to close the valve. But in ordinary ball valve handle and stem connection is a flat square, easily due to handle with the valve stem connection error the wrong operation of the valve, and on the floating ball valve handle and stem connection is a flat side could not have caused the handle connection error, more won't appear wrong operation. 2, locking mechanism, manual ball valve in full open and close position, locks are available, and in case of non workbench people pull (handle, cause the false operation of the valve, also can prevent because of pipeline vibration, or unpredictable factors cause the valve to open or close, an accident, especially for the explosive oil, chemicals, such as working line, or field piping, has a more effective role. 3, fly out proof stem convex shoulder floating ball valve to prevent due to unusually high pressure in the valve stem fly out of danger, set up a convex shoulder at the bottom of the stem, in addition to prevent fire occurs, the stem seal packing after burning, leak, convex shoulder at the bottom of the valve stem and valve body contact point set up thrust bearing, form a seal seat, prevent leakage, avoid courageously expand, for the average ball valve, if the valve stem packing damage, or packing gland bolts have defects, stem from, the easier to fly out of the action of the fluid within the accident, the extent of the accident, even the safety requirements are not allowed. 4, anti-static function floating ball valve to prevent the ball and stem with TFE or RPPL static friction, electrostatic spark to ignite easy medium and condition of accident, in the stem and ball and ball and stem set up between conducting electrostatic spring, through static line import, ensure the safety of the system. 5, no leakage valve seal structure body and side body is cushion for leaning on the connection of the seal, fire, high temperature shock and open, and torque unequal factors, all can cause the external leakage, ball valve, besides relying on gasket sealing design for metal body and side body, form the metal sealing, ensure where it.
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