Inform the manufacturer of pneumatic ball valve to introduce the classification of ball valve
Ball valve is a common mechanical part, and almost all industrial products, such as aircraft, trains, automobiles and other transportation tools, electrical equipment, instrumentation, power machinery, tool machinery, agricultural machinery, and even daily household goods, such as clocks, locks or automatic umbrellas, can not be separated from ball valve. There are many kinds of ball valves, among which pneumatic ball valves are also a kind of ball valves, and the classification methods of ball valves are also various. Now, Huarui pneumatic ball valve manufacturer will introduce the classification of ball valves.
Ball valves can be classified into metal ball valves and non-metallic ball valves according to the data. Metal ball valves include carbon steel ball valves, alloy steel ball valves, stainless steel ball valves and other steel ball valves, as well as copper alloy ball valves, nickel alloy ball valves and other non-ferrous metal ball valves. Non metallic ball valves include ball valves, fluid ball valves and synthetic resin ball valves, among which air operated ball valves and liquid ball valves belong to fluid ball valves.
Ball valves can be classified into spiral ball valves, plate ball valves and special ball valves according to their shapes. Screw ball valves include shrink screw ball valves, stretch screw ball valves and change screw ball valves. The cricket valve includes a single plate cricket valve and a multi plate cricket valve. Special ball valves include torsion bar ball valve, plane volute ball valve, disc ball valve, annular ball valve, ball valve gasket and volute spiral ball valve.
Ball valves are divided into ball valves subject to bending stress on the finite element, ball valves subject to changing stress on the finite element, ball valves subject to tensile and compressive stress on the finite element, and ball valves subject to composite stress on the finite element. The ball valves subject to bending stress in finite element mainly include plate ball valve, plane volute ball valve, disc ball valve, toothed or corrugated ball valve gasket and change ball valve. The ball valves that are mainly subject to changing stress in finite element analysis include stretch screw ball valve, shrink screw ball valve, torsion bar ball valve, ball valve gasket and volute screw ball valve. The ball valve mainly subject to tension and compression stress in finite element method is mainly annular ball valve. The ball valves mainly subject to the composite stress in the finite element analysis include the clamping ball valve, the bending screw ball valve, and the screw ball valve subject to the transverse load.
Ball valves are divided into those used under static conditions and those used under dynamic conditions. Ball valves used under static conditions are mainly safety valve ball valves, ball valve gaskets, scale ball valves, constant load ball valves and hairsprings in clocks and watches. The ball valves used under dynamic conditions mainly include the valve ball valve and regulator ball valve with its recovery performance; Suspension ball valve and anti vibration ball valve for vehicles to reduce vibration; The coupling ball valve for energy absorption and the buffer ball valve for elevator shall be used.
Ball valves can be divided into those used at ordinary ambient temperature, those working at high temperature and those working in corrosive media according to working conditions.
Ball valves are divided into cold coiled or cold pressed ball valves and hot coiled or hot pressed ball valves according to processing technology? Ball valves are divided into Class I precision ball valves, Class II precision ball valves and Class III precision ball valves according to manufacturing accuracy.?
According to the load and deformation conditions, the ball valves are divided into the ball valves with linear relationship between load and deformation, including ordinary stretch, shrink, change, single plate, torsion bar and worm coil ball valves. The ball valves with nonlinear relationship between load and variation include multi-layer plate ball valve, volute spiral ball valve, annular ball valve and disc ball valve with hysteresis effect; Unequal pitch ball valve, variable diameter screw ball valve and combined ball valve with yuan hysteresis.