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Add the SR Seires Electric Fail Safe Spring Return Rotary Actuator to your store or catalog  
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Flow Quip Electric Fail Safe Spring Return Rotary Actuator, SR Series

SR Seires Electric Fail Safe Spring Return Rotary Actuator

Brand: Flow-Quip
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Flow-Quip SR Series "Spring Return" Electric Actuators provide high integrity fail-safe stroking of valves and dampers.

They are suitable for shop or field mounting on a wide range of ball, plug and butterfly valves. Open/Close and modulating control configurations are available in the SR Series.

Each SR Series actuator contains a compact electro-hydraulic power supply that provides hydraulic pressure for the powerful scotch-yoke spring return torque mechanism.

This self contained design greatly reduces installation time since no field hydraulic tubing runs are needed.
Features
  • Fail to open, close or fail last position (specify with order)
  • Self contained system (reduced installation cost)
  • AC or DC motor power
  • Mount in any position (specify at time of ordering)
  • Scotch Yoke high breakaway torque output
  • High visibility mechanical position indicator
  • Watertight or explosion-proof construction
  • Integral motor controls and terminal housing
  • Easy to adjust valve travel stops
  • Remote position indication limit switches Lockable stainless steel hydraulic power module enclosure
  • Stainless steel hydraulic reservoir
  • ASME code rated accumulator
  • High integrity stainless steel tubing and fittings
  • Easy to mount on new or existing valves or dampers
  • Torque outputs up to 5.3M lb-in (600,000 Nm)

Specifications

Brand

Actuator Type

  • Spring Return

Alarm

  • Low Level

Approvals & Certifications

  • CSA Class I, Div. 1, or 2, Groups C, D
  • FM Class I, Div. 1, or 2, Groups C, D

Approvals & Certifications

  • ISO 9001: 2000

Communication

  • FOUNDATION Fieldbus
  • Modbus
  • PROFIBUS

Electrical Rating

  • Limit Switch: 15 A at 125 Vac
  • Limit Switch: 6 A at 24 Vdc

Enclosure, Body Material

  • Stainless Steel

Environmental Protection

  • Explosion-proof
  • IP66
  • NEMA 4
  • NEMA 4X
  • Watertight

Materials of Construction

  • Stainless Steel

Output

  • 4-20 mA

Override

  • Manual Override

Power

  • Motor HP: 0.5-5 hp Varies with Torque & Stroking Speed

Rotation

  • 90° (± 5°)

Switch Type

  • SPDT

Temperature Range

  • -28° to 60° C (-20° to 140° F)

Torque

  • Other Fail-safe Actuators (Output): 0 to 1.5 Million Nm (0 to 13.5 Million in/lb)
  • Spring Return (Output): 0 to 45,000 Nm (0 to 400,000 in/lb)

Documentation

Data Sheets

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