The valve torque calculation method is what? torque is an important parameter of valve, so a lot of friends are very concerned about Industrial Valves torque calculation. Network are all details below, the factory of the world pump valve valve torque calculation. torque calculation of concrete is: square x 3 1/2 valve diameter. 14 it is concluded that is the area of the valve plate, and then multiplied by the bearing pressure ( The pressure valve work) Draw a shaft on the static pressure, multiplied by the coefficient of friction ( Check table of general steel friction coefficient 0. 1, steel for rubber friction coefficient 0. 15) , times the diameter of axle torque divided by 1000 for a quick valve number, unit for cattle, meters, electric device and pneumatic actuator reference TVC Industrial Valves torque of 1. 5 times. in the design, selection of actuators is to rely on estimation, basic is divided into three parts: 1, the seal of the friction torque ( Sphere and valve seat) 2, 3 packing friction torque of the valve stem, bearing friction torque of the valve stem so the calculated pressure generally take the nominal pressure of 0. Six times ( About work pressure) , the friction coefficient according to the material. Calculation of torque by 1. 3 to 1. To choose actuators for five times. friction torque calculation to balance valve plate and valve seat, valve shaft and packing friction, medium under different pressure difference of valve plate of thrust. Since there are too many kinds of disc, seat and packing, each of which has different friction, and the size of contact area, the degree of compaction and so on. So is commonly used instrument measured instead of computing. The valve torque calculated value has great reference significance, but can not completely copy. Under the influence of many factors, the valve torque calculation is not the result of the experiment more accurate. Torque is the force to rotate the object happened. Engine torque is output from the crankshaft torque. Under the condition of the power of a fixed relationship between it and is inversely proportional to the engine speed, the faster the speed torque is smaller, conversely, the greater the it reflects the vehicle within a certain range of load capacity.
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