Installation and maintenance of 2 Piece Reduced Bore Internal Threaded Ball Valve
The installation and maintenance of three-piece internal thread reduce bore ball valve should pay attention to the following matters:
1. Leave the valve stem in a rotated position.
2. Cannot be used for throttling.
3. The ball valve with transmission shall be installed upright.
Structural features of 2 Piece Reduced Bore Internal Threaded Ball Valve:
1. open and close without friction. This function completely solves the problem that the traditional valve affects the seal due to the mutual friction between the sealing surfaces.
2. Top-mounted structure. The valve installed on the pipeline can be directly checked and maintained online, which can effectively reduce the parking of the equipment and reduce the cost.
3. Sealing surface self-cleaning structure. When the ball is tilted away from the valve seat, the fluid in the pipeline passes through 360° along the sealing surface of the ball, which not only eliminates the erosion of the valve seat by high-speed fluid, but also removes the accumulated material on the sealing surface to achieve the purpose of self-cleaning.
Recent year we are providing high-quality, high-performance, high-standard and price-constrained German standard ball valve for the majority of users.
The German standard one piece internal thread ball valve only needs to be rotated tightly with a 90 degree rotation and a small rotational torque. The fully equal valve body cavity provides media with very low resistance, straight flow path.The main features of this product are its compact structure, easy operation and maintenance, suitable for general working media such as water, solvent, acid and natural gas, and also suitable for working medium with poor working conditions such as oxygen peroxide, methane and ethylene.
The Ball Valve
generally uses rubber, nylon and PTFE as the sealing material, so its temperature depends on the sealing. Ball valve closing function worked through compressed between plastic seats under the effect of the media, valve seat is deformed under the pressure. The deformation can compensate the manufacturing presison of the sphere and the roughness of the surface to ensure good sealing performance. Since the valve seat sealing ring is made of plastic, the fire resistance should be taken into consideration especially in petroleum, chemical, metallurgical and other departments, especially in flammable and explosive medium equipment and pipe fittings, should be paid more attention. Ball Valve has good sealing performance, so it applies to slurry, abrasion, reduced chanel, rapid opening and closing movement, high pressure closure, low noise, the phenomenon of cavitation and gasification, small leakage to the atmosphere, small torque, small fluid resistance of the piping system. In the low-temperature (cryogenic) equipment and piping system valve can also be used. In oxygen pipeline system of the metallurgical industry, need use the ball valve with strict treatment. When regulating performance needed, special structure valve with V shaped opening should be used. In the petroleum, petrochemical, chemical, electric power and urban construction, where the working temperature is over 200 centigrade in the pipeline system metal to metal sealing ball valve can be used.