Combination ball valves can be customized
Pneumatic actuator selection
by：AIRWOLF
2021-01-15
When choosing AW pneumatic actuator, first determine the valve opening and closing of the torque, according to the valve using fluid, increase the TVC.
Increased 20% considered safe for cleaning, lubricating medium;
The steam or increased by 25% when lubricating medium;
The lubrication of dry gas medium increases 60% safe;
Non lubrication with gas particles increased by 100% when grain powder medium.
Then according to the air pressure of work, for double or single acting torque table, can wait for the precise shape.
Single acting output torque table, smaller torque is to close the valve spring torque, big spring torque is to open the valve of torque.
the function of actuators and accessories and use the
1, double-acting actuators: to control the valve opening and closing of the two type.
2, single-acting actuator ( Spring return) : in the circuit, gas path cut or defective, automatically close the valve.
3, double electrical solenoid valve: a coil electric valve open, another coil electric valve shut, with memory function ( Can provide explosion-proof type) 。
4, single electrical solenoid valve: valve opened or closed when power supply, power valve closed or opened ( Can provide explosion-proof type) 。
5, limit switch back to the news: on or off valve position signal (teleportation Can provide explosion-proof type) 。
6, electrical locator: according to the current signal ( 4 - 20mA) The size of the control of media flow control valve ( Can provide explosion-proof type) 。
7, pneumatic positioner: according to the pressure signal, Standard of 0. 02 - 0. 1MPa) The size of the control medium flow control valve.
8, electrical converter: to convert current signal pressure signal, with pneumatic positioner ( Can provide explosion-proof type) 。
9, air source treatment sanlian pieces: including air pressure reducing valve, filter, oil mist device, the gas source voltage lubrication, cleaning, moving parts.
10, hand operation: automatic control in abnormal cases can be manual opening and closing of the valve.
the function of actuators and accessories and use the
1, double-acting actuators: to control the valve opening and closing of the two type.
2, single-acting actuator ( Spring return) : in the circuit, gas path cut or defective, automatically close the valve.
3, double electrical solenoid valve: a coil electric valve open, another coil electric valve shut, with memory function ( Can provide explosion-proof type) 。
4, single electrical solenoid valve: valve opened or closed when power supply, power valve closed or opened ( Can provide explosion-proof type) 。
5, limit switch back to the news: on or off valve position signal (teleportation Can provide explosion-proof type) 。
6, electrical locator: according to the current signal ( 4 - 20mA) The size of the control of media flow control valve ( Can provide explosion-proof type) 。
7, pneumatic positioner: according to the pressure signal, Standard of 0. 02 - 0. 1MPa) The size of the control medium flow control valve.
8, electrical converter: to convert current signal pressure signal, with pneumatic positioner ( Can provide explosion-proof type) 。
9, air source treatment sanlian pieces: including air pressure reducing valve, filter, oil mist device, the gas source voltage lubrication, cleaning, moving parts.
10, hand operation: automatic control in abnormal cases can be manual opening and closing of the valve.
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