AUMA Explosion-Proof (SAEx / SQEx)

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Product Details

Explosion-proof electric actuators for valve automation in potentially explosive atmospheres. Includes the SAEx/SAREx multi-turn series for gate and globe valves and the SQEx/SQREx part-turn series for butterfly and ball valves. ATEX and IECEx certified, combinable with ACExC and AMExC actuator controls.

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▸ Key Features
  • ATEX and IECEx certified (gas group IIC/IIB, dust group IIIC)
  • FM approved (Class I Div 1, Groups B, C, D)
  • Limit and torque sensing
  • IP68 enclosure protection
  • High-quality corrosion protection (KS)
  • Wide ambient temperature range: –30 °C to +70 °C
  • 3-phase AC, 1-phase AC and DC motors (multi-turn); 3-phase AC (part-turn)
  • Handwheel for manual operation
  • Electrical connection via AUMA plug/socket connector
  • Valve attachments to DIN and ISO standards
  • Functional safety up to SIL 2; up to SIL 3 with ACExC 01.2 SIL controls
▸ Technical Specifications

MULTI-TURN — SAEx / SAREx .2

Parameter SAEx .2 SAREx .2
Torque range 10 – 32,000 Nm 15 – 4,000 Nm
Modulating range — 15 – 1,600 Nm
Output speed 4 – 180 rpm 4 – 90 rpm
Max. starts — 1,200 c/h
Duty classification Class A, B (open-close) Class C (modulating)
Motors 3-ph AC, 1-ph AC, DC 3-ph AC, 1-ph AC
Valve types Gate, globe, butterfly, ball

PART-TURN — SQEx / SQREx .2

Parameter SQEx .2 SQREx .2
Torque range 50 – 2,400 Nm 50 – 2,400 Nm
Operating time for 90° 4 – 100 s 4 – 100 s
Swing angles 75° – 105° 75° – 105°
Max. starts — 1,500 c/h
Duty classification Class A, B (open-close) Class C (modulating)
Motors 3-ph AC 3-ph AC
Valve types Butterfly, ball, plug

Common to both series: IP68 enclosure protection · KS corrosion protection · –30 °C to +70 °C · ATEX / IECEx / FM certified

▸ Applications
  • Oil and gas production
  • Refineries
  • Chemical and petrochemical plants
  • Pipelines and storage terminals
  • Power generation