Emsal Vana
Products / Actuators · 420–439 / Pneumatic actuator
PRODUCT GROUP 421 · ACTUATORS

Pneumatic actuator

Pneumatic actuators convert compressed air into mechanical motion for on/off or modulating control of valves. They are preferred in industrial processes for fast, safe and energy-efficient valve control.

PNEUMATIC ACTUATORTYPE 421 · EMSAL VANA
DN
—
PN
—
MATERIAL
Aluminium · Stainless steel
STANDARD
DIN
CONNECTION
EN ISO 5211
TEST
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Pneumatic actuator

Technical data

01
StandardDIN
Connection typePneumatic
End connection standardTS EN ISO 5211

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

Material

02
Material
AluminiumStainless steel

Features

03

Operation

  • Compressed air is fed to the piston or diaphragm inside the actuator.
  • The movement is transferred to the valve stem and the valve opens or closes.
  • In single-acting models a spring provides the return stroke; double-acting models use air in both directions
  • The actuator can be integrated with PLC, SCADA or manual control systems

Advantages

  • Fast response – quicker than electric actuators
  • Safe in explosive atmospheres – produces no sparks
  • Energy efficient – consumes air only when moving
  • Low maintenance – simple mechanism, long life
  • Remote automation – fully compatible with PLC and SCADA systems

Applications

  • Chemical and petrochemical plants
  • Water treatment and distribution systems
  • Food and pharmaceutical production lines
  • Power plants
  • HVAC systems
  • Marine and ship machinery
  • Fire-fighting and safety systems

Actuator types compared

Actuator typePower sourceAdvantagesDisadvantages
PneumaticCompressed airFast response, safe, low costLower precision, may require an air supply
HydraulicPressurised fluidHigh force, precise controlRisk of leaks, maintenance, costly
ElectricElectrical powerPrecise control, clean operation, easy integrationSlower response, may be unsuitable for explosive atmospheres

Accessories

04

Downloads

05
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

Related products

06
Pneumatic actuator · 421 · Aluminium