Electrolytic copper is a non-ferrous metal with very close relationship with human beings. It is widely used in electric, light industry, machinery manufacturing, construction industry, national defense industry and other fields, second only to aluminum in the consumption of non-ferrous metal materials in our country.
Copper is the most widely used and widely used in the electrical and electronics industries, accounting for more than half of the total consumption. For a variety of cables and wires, motor and transformer windings, switches and printed circuit boards.
Used in the manufacture of machinery and transport vehicles for the manufacture of industrial valves and fittings, gauges, sliding bearings, molds, heat exchangers and pumps.
In the chemical industry is widely used in the manufacture of vacuum, distillation pots, brewing pots.
In the defense industry for the manufacture of bullets, shells, guns and other parts, each producing 1,000,000 rounds of ammunition, the need for copper 13-14 tons.
In the construction industry, used as a variety of pipes, pipe fittings, decorative devices.
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Fixed ball valve is a new generation of high-performance ball valve, suitable for long-distance pipelines and general industrial pipelines. Its strength, safety, harsh environment and other special considerations in the design, suitable for a variety of corrosive and non-corrosive media. It is compared with the floating ball valve, work, the valve fluid pressure in front of the ball on the force generated are all transmitted to the bearing, the ball will not move to the seat, so the seat will not withstand excessive pressure, so the fixed ball valve The torque is small, the valve seat deformation is small, stable sealing performance, long service life. Fixed ball valve is divided into two types and three types of two valve body structure, the flange is bolted, sealed with PTFE reinforced inlaid stainless steel ring, the back of the spring does not guarantee that the valve seat close to the ball , Keep it sealed. No upper and lower stem PTFE bearings to reduce friction, the operation of labor-saving, no adjustment at the bottom of the small shaft to ensure that the ball and seal the junction location. Full diameter: valve flow aperture and pipeline diameter, in order to clean the pipeline. Fixed ball valve features: 1, the use of cylindrical spring or wave spring preload of the movable metal seat structure, seal preload design is reasonable, closed and flexible, effectively ensure the reliability of the seal. 2, the stem of a special structure of the device, not only to ensure that fill material will leak, and to prevent the valve stem prolapse. 3, according to the needs of users, can be designed to adapt to the dust (including solid particles), slurry and other media structure, the ball valve wear and high temperature performance better. 4, itself has fire and anti-static function. 5, the structure of the valve should be used to flow direction.