HA Pneumatic Diaphragm Linear‑stroke Actuator
The HA‑series pneumatic actuator features a multi‑spring structure, with advantages of light weight, small overall dimension, compact layout and large output force. It receives air pressure converted by the positioner from electric or pneumatic signals sent by control instruments into the diaphragm chamber. The air pressure acts on the diaphragm to generate thrust and drive the output shaft to move up and down. Therefore, when this mechanism is connected to the valve body of the control valve, the valve plug can be positioned at the position corresponding to the input signal.
Technical Parameters and Performance
Model: Direct‑acting: HA22D, HA23D, HA34D, HA45D, HA56D
Reverse‑acting: HA22R, HA23R, HA34R, HA45R, HA56R
Direct‑acting (D): Output shaft descends as air pressure increases.
Reverse‑acting (R): Output shaft ascends as air pressure increases.
Air supply pressure: 140KPaG ~ 300KPaG
Materials: Diaphragm cover: Carbon steel
Bracket: Carbon steel
Diaphragm: Fabric‑reinforced EPDM
Push rod: 45# steel with hard chrome plating
Spring ranges: 40‑100KPaG, 40‑200KPaG, 80‑240KPaG
Ambient temperature: Standard type ‑30~+70℃
Surface coating: Gray
Air supply port: HA22‑45:M16×1.5; HA56:Rc1/2
Accessories: Positioner, air filter‑regulator, booster, pneumatic control valve, lock‑up valve, solenoid valve, limit switch, handwheel mechanism, etc.
Performance:
Remarks: The performance of the actuator without positioner may vary depending on the packing used.
Output Force
