Pneumatic actuator type selection
Pneumatic actuator drive device can be connected with a variety of computer, alone or centralized control, can use two analog or switch signal control, support various modern control equipment, widely used in domestic petroleum, chemical, electric power, metallurgy, textile, food, medicine, environmental protection, urban construction and the research field of zhu, exported to Europe, America, Middle East and southeast Asia market, It is well received by users.
Pneumatic actuator beautiful appearance delicate, light weight, waterproof sealing structure. Install the piston, rack and the moving parts of the output shaft F4 guide ring for low friction, long life and avoidance of metal contact. Meet the installation connection size ISO5211, DIN3337 and VD1 / VDE3845 and NUMAR standards to ensure easy installation of GTD solenoid valves. Limit switch and other accessories.
Type selection of double-acting pneumatic actuator:
With double-acting ACTUATORS, the valve torque must be determined first. Under normal service conditions, the recommended safety factor is 15 to 20%. Increase the safety value according to the fluid medium used. The safety value of lubricating medium is increased by 20%; The safety value of water vapor or non-lubricating liquid medium is increased by 25%; The safety value of non-lubricated slurry medium is increased by 40%; The safety value of non-lubricated dry gas medium increased by 60%; The safety value of non-lubricated granular medium is increased by 80%. The safety value of particle powder medium transported by non-lubricating gas increased by 100%; Based on the torque values calculated above and using the air source pressure to find the torque table of the dual function actuator, the GTD model can be accurately obtained.
Single action pneumatic actuator type selection:
Using a single action actuator, find a single action torque table according to the torque value and the air source pressure calculated above. First check the spring return end, and then check the air source working pressure end. The air source pressure torque should be greater than the spring return torque to get the exact model. Note: In GTE's single pneumatic output torque table, the spring reset "end" torque is the torque of closing the valve, and the spring reset "start" to open the valve, the torque is the torque. The starting torque of the corresponding air source pressure is the torque of the valve closing state, and the ending torque of the air source pressure is the torque of the valve opening.
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