electric gate valve used in different places on the basis of different water pressure difference or differential pressure at the ends of the damper ( Gate valve is closed) , torque limit institutions can be appropriately adjusted. On both ends of the electric gate valve gate direction when using hydraulic pressure or low differential pressure, torque limit agencies should be transferred to the lower torque, in the use of HZ series ( See figure 1) , Z series ( See figure 2) Or the ZB series ( See figure 3) electric actuator, as long as adjust the torque limit agencies regulate drawing board and the distance between the touch panel to achieve ( See note to adjust) 。 Calibration board with scale, the scale value, the greater the torque value. Electric gate valve is closed when the water pressure at the ends of the poor or the greater the pressure difference, adjust the torque value requires, the greater the vice is small. More than a few series of adjustment. After adjusting lh-zd series valve electric actuator ( See figure 4) , to remove the side cover, adjust the torque limit institutions, unscrew the adjusting nut tight set screw, unscrew the adjusting nut, loosen knob torque spring, and in the loose then adjust the set screws tighten nut, hold the adjusting nut. Pay attention to the top of the set screw must be on the shaft groove, such as the top is not just on the shaft groove, as long as the adjusting nut to the direction of the compression spring a little turn, make it on the shaft groove set screws. Then put side cover, adjust the open valve. Such as torque limit, the motion of the spring is too loose the close to the action. So that we can make the torque limit agencies work under low torque, ensure that electric gate valves in the stroke control mechanism failure, or for other reasons than torque, torque limit agencies and reliable action, and to cut off the motor power, to protect the valve from damage. In some places use electric gate also don't have to adjust the closing of the too tight, loose half a circle back again after adjustment to manually shut ( Or a circle) Location is good, Or no leakage or air as well) 。 When the electric gate valve installed in the water pressure difference ( Or pressure difference) Bigger place, when using torque limit agencies should be transferred to the appropriate opening and closing torque. If installed in the water pump room of the water gate, after the pump start-up, they did not open when the water pressure, water gate diameter at this time, the greater the open gate valve used in the moment. Especially when there is no pressure in the pipeline, valve disc on the one-way pressure maximum, then adjust nut compression spring, can adjust to the normal opening and closing valve, torque limit agencies no action so far. When the electric gate in adjusting water pump room use must be transferred to the full open full closed position, otherwise it is easy to make the gate valve sealing surface damage caused by leakage. Because installation of electric gate near the water pump, water flow rate high and not smooth, as part of the disc such as gate valves not fully open for water channeling dynamic before and after the impact, the disc sealing surface wear, channels water affect the service life of the valve. Also should try to avoid using electric gate valve to regulate traffic, otherwise easy to damage the valve sealing surface. In addition, the variable frequency speed regulation technology is developing rapidly in recent years, the pump flow control to adopt frequency control of motor speed technology, to achieve energy saving efficiency of the pump. as a domestic high-end valve manufacturer, always respond to national policy and called for, committed to researching, developing and manufacturing electric butterfly Industrial Valves, stainless steel ball valve, discharge Industrial Valves, electric gate valves, stainless steel gate, stainless steel valve, stainless steel check valve, high pressure gate valves high-quality let customer trust of good valve, the valve to keep traditional valve product sales profits to escort for the innovation research.

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