E-RANGE

  • Economic Gearbox Range
  • Robust housing made of cast iron GG25
  • PP position indicator with clear orange arrow
  • IP67 enclosure, fully compatible with the ALFA insert system
  • Suitable for butterfly valves, ball valves, and plug valves
  • Available in 9 sizes, delivering torque up to 4,500 Nm

E-Range Gearboxes – Smart Engineering by Alfa Gears

The E-Range gearboxes from Alfa Gears are built for one clear purpose:
reliable performance at a competitive price.

With a robust GG25 cast-iron housing, an IP67-rated enclosure, and a clear light PP position indicator, the E-Range delivers exactly what the market expects — no over-engineering, no compromises on quality.

Designed to work seamlessly with butterfly, ball, and plug valves, and fully compatible with the ALFA insert system, this range offers easy installation and dependable operation in the field.

Available in 9 sizes with torques up to 4,500 Nm, the E-Range proves that solid, traditional gearbox engineering is still the smartest choice.

Alfa Gears E-Range
Straightforward. Durable. Ready to perform.

General technical information

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.
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.
  • 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

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 dowload the Alfa Gears Dimensions or Alfa Gears Materials specification.

Our high standards

    1. Precision casting cast iron GG25 housing
    2. Optimal output torque, range up to 4500 Nm
    3. High efficient needle roller bearing
    4. High strength SS420 steel Input shaft
    5. Stroke 0°- 90°(± 5°)
    6. Compact structure
    7. Grease filled for longer life
    8. Adjustable stopper (± 5°)
    9. Perfect sealing performance
    10. IP67 Enclosure standard
Installation and Operating Manual Englisch Installation and Operating Manual German Datasheet E12 (120Nm) Metric Datasheet E25 (250Nm) Metric Datasheet E35 (350Nm) Metric Datasheet E55 (550Nm) Metric Datasheet E100s (1000Nm) Metric Datasheet E200 (2000Nm) Metric Datasheet E350 (3500Nm) Metric Datasheet E400/2 (4000Nm) Metric Datasheet E450 (4500Nm) Metric

Options E-RANGE

Locking Device

Padlocking flanges can be added to all Alfa gearboxes in steel painted or stainless steel.
Locking Device

Handwheels

The Alfa Handwheels are available in various types such as: (SW) Steel Welded (SSW) Stainless Steel Welded (SP) Steel Pressed (SC) Steel Casted
Handwheels

KW Chainwheel

KW Chainwheels and chain according DIN 766 (6 mm) and chain holders are available for Alfa gearboxes type 55 and larger. Available diameters ø135, ø215 and ø335mm
KW Chainwheel

Vane Indicators

Vane indicators can be added to all Alfa Gearboxes available in coated and stainless steel.
Vane Indicators

Switchbox S-200

Alfa S-200 switchbox with assembly system suitable for all Alfa Gearboxes. Easy to mount on all types of Alfa Gearboxes with our Namur mounting plate.
Switchbox S-200

Inserts

Various inserts to suit all Alfa Gearboxes
Inserts

Extensions / Brackets / Adapters

Alfa Gears can offered with a large variation of inserts, mounting brackets, adapters, valve extensions and wormshaft extensions.

More information

Please fill out the contactform