Manual Override quarter turn Gearbox range suitable for mounting between a double or single acting pneumatic actuator and valve.
Available with optional 3/2 relief valve to relief air automatically from the system.
7 sizes · up to 8.500Nm Torque range · IP67 Enclosure · Insert system · Optional 3/2 Relief valve · Stainless Steel Inputshaft
GENERAL TECHNICAL INFORMATION
Application
Alfa-Series quarter-turn worm gearboxes are applied to ball valves, butterfly valves, dampers and other 90° rotary valves. Alfa Gears hand wheels are with a variety models for optimal operation.
Operating Enviroment
Alfa Gears quarter-turn Worm gearboxes are with good mechanical quality and steady operating performance which apply to deal with variety climate and temperature. We strive to develop Alfa Gears valve gear operators to meet higher demands in the market.
Factory Standard
Enclosure: IP67 Standard (IP68 on request)
Working Temperature: From -50°C to 150°C (-4°Fto248°F)
Painting: Black RAL 9005, or according customer specification
Connect with Valve
The flange connecting to valve is according to EN ISO5211 or DIN3210 (Customization). including Sintered coupling system for various shaft connections. Please click on our link to download the Alfa Gears Dimensions or Alfa Gears Materials specification.
OUR HIGH STANDARDS
- Precision casting ductile iron GGG40 housing
- Optimal output torque, range up to 8500 Nm
- High efficient needle roller bearing
- High strength stainless steel Input shaft
- Stroke 0°- 90°(± 5°)
- Compact structure
- Grease filled for longer life
- Adjustable stopper (± 5°)
- Perfect sealing performance
- IP67 Enclosure Standard