XINBAODA

quick-connect ball valve using temperature is limited by the seat sealing ring material, because its sealing ring material is usually nylon, rubber and PTFE. The cut-off function of the ball valve is to press the metal ball between the plastic valve seats, through the action of the medium.

Some areas will undergo elastic-plastic deformation under a certain contact pressure. This deformation can ensure the sealing performance of the ball valve and compensate the surface roughness and accuracy of the ball. The fire resistance and fire resistance of the ball valve should be considered. When selecting the performance and structure of the ball valve, when using the ball valve in the flammable and explosive medium equipment and pipeline system, in the chemical, petroleum, metallurgical and other departments, more attention should be paid to the fire resistance and Fire resistance, because the valve seat sealing ring of the quick-connect ball valve is usually made of plastic.

quick-connect ball valve is generally recommended to use quick-connect ball valve in pipeline system with high pressure cut-off, fast opening and closing action, no necking channel, no wear, no mud, strict sealing performance, less leakage to the atmosphere, two-position adjustment, no gasification, no cavitation, low operating torque, low noise and small fluid resistance. Quick ball valve is suitable for cutting off the pipeline system with low pressure, light structure and corrosive medium, and can also be used for pipeline system and low temperature equipment.

Quick-connect ball valve needs to use a ball valve that has been strictly degreased, in the oxygen pipeline system of the metallurgical industry. When the main pipeline of the oil and gas pipeline needs to be buried underground, a full-diameter welded ball valve is required. Special structure of the V-type open ball valve should be selected, when the need to adjust the performance. In chemical, petrochemical, petroleum, electric power and urban construction, metal-to-metal sealed ball valves can be used in piping systems with working temperatures above 200 degrees. Advantages of

quick-connect ball valve: 1. The quick-connect ball valve has low flow resistance and will not jam during operation, so it can be reliably applied to low boiling point liquids and corrosive media;

2, quick-connect ball valve can be completely sealed within a wide range of temperature and pressure; 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 bench to realize rapid opening and closing. Operation has no effect when switching valves quickly.

3, spherical head can be automatically positioned at the boundary position, and both sides of the working medium are sealed reliably; When fully open and fully closed, the sealing surface of the ball and valve seat is isolated from the medium, so the medium passing through the valve at high speed will not cause erosion of the sealing surface.

4, quick-connect ball valve can be considered as a reasonable valve structure for low-temperature medium system, because of its light weight and compact structure; The valve body symmetry, it can well withstand the stress from the pipeline, especially the welded valve body structure;

5. The closing part can withstand the high pressure difference when closing. The fully welded ball valve can be directly buried in the ground, so that the valve is not corroded inside, and the service life can reach 30 years. It is an ideal valve for oil and gas pipelines.