Emsal Vana
Products / Accessories · 900–999 / Manual gear operator
PRODUCT GROUP 902 · ACCESSORIES

Manual gear operator

Manual gear operators let large valves (usually DN 150 and above) be opened and closed by hand with less effort. By multiplying the torque they make operation easier and are used especially on large-diameter and high-pressure lines.

MANUAL GEAR OPERATORTYPE 902 · EMSAL VANA
DN
—
PN
—
MATERIAL
Aluminium · GGG40.3
STANDARD
EN·ISO
CONNECTION
EN ISO 5211
TEST
—
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Manual gear operator

Technical data

01
StandardEN · ISO
Connection typeThreaded
DesignEN ISO 5211
End connection standardEN ISO 5211

The standards listed apply to stocked products. Contact us for other standards.

Material

02
Material
AluminiumGGG40.3

Features

03

Operation

  • The gear operator is turned with a handwheel or lever.
  • Reduction gears inside multiply the input force and transfer it to the valve stem.
  • High-torque valves (especially butterfly, gate and ball valves) can thus be operated easily.

Advantages

  • Torque multiplication allows large valves to be operated by one person.
  • Self-locking design prevents sudden movements.
  • Durable housing (cast iron, aluminium or stainless steel) for outdoor conditions.
  • Flexible mounting: ISO 5211 flange to suit different valve types.

Applications

  • Water and wastewater: operating large butterfly valves
  • Petrochemicals: gate valve operation in high-flow lines
  • Energy: operating steam, cooling and gas valves
  • Industrial plants: support for valve automation on production lines

Considerations

  • The gear operator's torque rating must match the valve's torque requirement.
  • The ISO mounting face must be properly aligned with the valve.
  • Excessive force or incorrect installation can break the gearing.
  • Choose the IP rating, lubrication and housing to suit the environment.

Downloads

04
DatasheetPDF · TR · dimension and weight table
IN PREPARATION
CAD modelSTEP · DXF · by nominal size
IN PREPARATION
3.1 certificate samplePDF · EN 10204 · TR/EN
Open sample

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05
Manual gear operator · 902 · Aluminium