Combination ball valves can be customized
Pneumatic actuators
by：AIRWOLF
2021-01-15
Pneumatic actuators that
pneumatic actuator is commonly known as common head of actuators can be divided into electric, hydraulic and pneumatic three categories, they each have each characteristic, choose according to different environments and situations. Pneumatic actuators is one of the actuator of the common, also is a kind of widely used.
specific pneumatic actuators can be subdivided into two types of single and DOUBLE action: switch actuator movement through the air to drive the execution, called DOUBLE ACTING ( Dual role) 。 春天
返回( Single-acting) Switch action only open action is air driven, and close the action is a spring return.
pneumatic actuators actuators and regulating mechanism is a unified whole, the actuator has a thin film type, piston and gear rack type. Piston stroke length, suitable for a greater thrust required; The diaphragm stroke is small, can only be direct drive valve stem. Due to the gear rack type actuator has a simple structure, export thrust large, action is stable and reliable, and safe explosion-proof, etc, in power plant, chemical industry, oil refining, such as the safety requirements of high production process has a wide range of applications.
pneumatic actuator faults
low control precision, double-acting pneumatic actuators, broken after the air supply can't return to the default location. Single-acting pneumatic actuators, broken after the air supply can rely on the spring back to the default position
the principle that
when the compressed air from A tube tip into the pneumatic actuators, push double piston in gas (on both ends Cylinder head side) Linear motion, the piston rack drive gear on the axis of rotation on the 90 degrees counterclockwise rotation, the valve is open. The pneumatic valve at the ends of the gas tube tip discharge with B. Conversely, when the compressed air from B officer tip into the ends of the pneumatic actuators, gas drive double plug to the middle line movement, the rack on the piston driven gears rotate 90 degrees clockwise on the axis of rotation, the valve is closed. The pneumatic actuator with A pipe in the middle of the gas nozzle. The above for standard transmission principle. Pneumatic actuators can be device according to user requirements, in contrast to the standard transmission principle, namely choose standard shaft rotate clockwise to open valve, counterclockwise rotation to close the valve. The single function ( Spring return type) Pneumatic actuator tube tip for air inlet, A tube to vent (B B pipe nozzle should be installed muffler) 。 When A pipe nozzle inlet to open valve, expired on close valve spring force.
pneumatic actuator is commonly known as common head of actuators can be divided into electric, hydraulic and pneumatic three categories, they each have each characteristic, choose according to different environments and situations. Pneumatic actuators is one of the actuator of the common, also is a kind of widely used.
specific pneumatic actuators can be subdivided into two types of single and DOUBLE action: switch actuator movement through the air to drive the execution, called DOUBLE ACTING ( Dual role) 。 春天
返回( Single-acting) Switch action only open action is air driven, and close the action is a spring return.
pneumatic actuators actuators and regulating mechanism is a unified whole, the actuator has a thin film type, piston and gear rack type. Piston stroke length, suitable for a greater thrust required; The diaphragm stroke is small, can only be direct drive valve stem. Due to the gear rack type actuator has a simple structure, export thrust large, action is stable and reliable, and safe explosion-proof, etc, in power plant, chemical industry, oil refining, such as the safety requirements of high production process has a wide range of applications.
pneumatic actuator faults
low control precision, double-acting pneumatic actuators, broken after the air supply can't return to the default location. Single-acting pneumatic actuators, broken after the air supply can rely on the spring back to the default position
the principle that
when the compressed air from A tube tip into the pneumatic actuators, push double piston in gas (on both ends Cylinder head side) Linear motion, the piston rack drive gear on the axis of rotation on the 90 degrees counterclockwise rotation, the valve is open. The pneumatic valve at the ends of the gas tube tip discharge with B. Conversely, when the compressed air from B officer tip into the ends of the pneumatic actuators, gas drive double plug to the middle line movement, the rack on the piston driven gears rotate 90 degrees clockwise on the axis of rotation, the valve is closed. The pneumatic actuator with A pipe in the middle of the gas nozzle. The above for standard transmission principle. Pneumatic actuators can be device according to user requirements, in contrast to the standard transmission principle, namely choose standard shaft rotate clockwise to open valve, counterclockwise rotation to close the valve. The single function ( Spring return type) Pneumatic actuator tube tip for air inlet, A tube to vent (B B pipe nozzle should be installed muffler) 。 When A pipe nozzle inlet to open valve, expired on close valve spring force.
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