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| Description |
| Series 2641 pneumatic rotary actuators are low maintenance single or
double acting pneumatic linear piston actuators where linear movement of the piston due to the pilot air causes a 90o rotation of the connected valve. Actuator-valve coupling is made via a universal ISO 5211 mechanical interface. The status of ball or butterfly valve can be monitored via the feedback switches of series 2602. |
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| Technical Specification |
| Type |
2641 |
| Name |
Pneumatic Rotary Actuator |
| Circuit functions |
Double acting / Spring return |
| Actuator material |
Aluminium alloy |
| Piston material |
Aluminium |
| Seal material |
NBR / FPM / Silicon |
| Rotation |
90°, adjustable to - 5°…95° |
| Control pressure |
5 ... 8 bar, Max. 8 bar |
| Control medium |
Filtered compressed air with or without oil |
| Interface for pilot valve |
NAMUR type |
| Stem connection |
Square or polygonal shape ISO 5211 |
| Interface for feedback signal |
VDI / VDE 3845, UNI EN 15714-3 |
| Operating temperature |
NBR: -20°C ... +80°C；FPM: -15°C ... +150°C；Silicon: -40°C ... +80°C |
| Applications |
Oil industry |
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Chemical industry |
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Metallurgical Industry |
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Machinery manufacturing |
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Test equipment |
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General industry |
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Features |
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• Design of the Rack and Pinion |
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• Rotation angle: 90° ± 5° |
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• Double acting or spring return |
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• NAMUR and ISO 5211 interfaces |
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• Antifriction bearing |
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• Long life, maintenance-free |
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