The side-mounted eccentric half ball valve is a device used in the fluid system to control the direction, pressure and flow of the fluid. The side-mounted half ball valve is equipped with the pipe and the medium (liquid, gas, powder, etc.) in the pipeline to flow or terminate and control the flow.

Side half of an eccentric valve series in the application if proper care can lead to damage to the valve, so we have to keep the valve and not heap crib, install side half of an eccentric valve within the warehouse neat, attention should be paid to avoid let flange junction surface contact with the ground, ensure that the valve will not be damaged; The valve shall not be used in the short term. The asbestos packing should be removed to avoid electrochemical corrosion and damage valve stem. For the valve that has just entered the library, it needs to be inspected. If it is to be used for rain or dirt during transportation, it should be cleaned and stored. Import and export of side half ball valve with wax paper or plastic sheet to avoid getting into the dirty; For those valves that can rust in the atmosphere, protect the surface with anti-rust oil; If the valve is placed outside, cover against rain, dust and other fabrics.

Eccentric loading and side half ball valve series in use process will appear this or that kind of problem, to prolong the service life of the valve and ensure that opening and closing yes, reliability in use must pay attention to the side of half of an eccentric valve maintenance: stem thread often and stem nut friction, with a little butter or graphite powder, can rise to lubrication; Not long open side half ball valve, need to turn handwheel regularly, to stem thread and lubricant, in case of seizing; The outer side of the side with the eccentric half ball valve shall be protected against the stem, in case of rain, snow and dust. If the valve is mechanical transmission, please add the lubricating oil to the gearbox on time and keep the side loading eccentric and half ball valve clean; Stem, especially the threaded portion, often should clean and add new lubricant, prevent hard sundries in the dust, wear thread and stem surface, otherwise it will affect the service life of the eccentric side half ball valve.

Side mount eccentric ball valve is evolved by the plug valve, the opening and closing is a sphere, using a sphere around the axis of the stem rotate 90 ° the realization of the aim of opening and closing. The side-mounted eccentric half ball valve is mainly used in the pipeline to cut off, distribute and change the flow direction of the medium, and the ball valve designed to be v-shaped opening also has good flow adjustment function.

Advantages of side-mounted half-ball valve:

The side - side semi-ball valve has the lowest flow resistance (actually 0);

Because it can be used reliably in corrosive medium and low-boiling liquid when it is not stuck in the work (when it is not lubricants).

In the larger pressure and temperature range, the complete seal can be achieved.

The opening and closing time of some structures is only 0.05~ 0.1s, which can be used in the automation system of the test bed. Quick open and close valve, operation without impact.

The spherical closed part can automatically locate at the boundary position.

The working medium is sealed on both sides.

With the eccentric half-ball valve in full open and closed, the sealing surface of the ball and seat is separated from the medium, so the high speed through the valve will not cause the sealing surface erosion;

The eccentric half-ball valve is compact and light weight, which can be considered as the most reasonable valve structure for low temperature medium system.

The body symmetry of the eccentric hemispheric valve body, especially the welded body structure, can withstand the stress from the pipe well.

The shutdown part can withstand the high pressure difference when it is closed.

The ball valve of the fully welded valve body can be buried directly in the ground, allowing the valve to be free of erosion. The maximum service life can be up to 30 years, which is the ideal valve for oil and gas pipelines.