Actuators

Pneumatic Actuators

Working Pressure: 6-12 Bar
Temperature range of -29°C to +80°C.
(-49°C upon request)

Hydraulic Actuators

Working Pressure: 20-350 Bar
Temperature range of -29°C to +80°C.
(-60°C upon request)

Linear Pneumatic Actuators

These are used for automation of Globe, Gate and Control Valves by means of pneumatic piston. Opening and closing of valve obturator are maintained by pneumatic power. Control devices for such actuators are designed depending on application fields. Spring Return or Double Acting types of Linear Pneumatic Actuators are available, too.

Quarter Turn Pneumatic Actuators

Vastas prefers the Quarter Turn Actuators with canted scotch yoke mechanism, which provides torque advantage when critical torques are required. They may be designed & produced as Spring Return or Double Acting Type.

Linear Hydraulic Actuators

These are used for automation of Globe, Gate and Control Valves by means of hydraulic piston. Opening and closing of valve obturator are maintained by hydraulic power. Control devices for such actuators are designed depending on application fields. Spring Return or Double Acting types of Linear Hydraulic Actuators are available, too.

Quarter Turn Hydraulic Actuators

Vastas prefers the Quarter Turn Actuators with canted scotch yoke mechanism, which provides torque advantage when critical torques are required. Open/close motions of valve is provided by hydraulic piston power and spring power. Close with spring or open with spring types are manufactured. When high torque is required, they may be produced as double acting. They have smaller piston diameter but higher pressure output than similar pneumatic actuators.

Gas Over Hydraulic Actuators

These are designed for usage in Natural Gas Pipelines, working with line pressure. They can automatically operate under each weather condition where no personnel and electric energy are present. Various types are offered depending on application, pressure fluctuation, climate and field conditions, etc.

Electro Hydraulic Actuators

Electro Hydraulic Actuators with canted scotch yoke mechanism, which provides torque advantage when critical torque is required and may be produced as double acting. Alternative energy sources can be added upon request. They can operate using the energy, collected in the reservoir tanks.

Actuators

Usage Areas

Pipelines, Iron & Steel, Energy Facilities, Drinking Water Lines, Compressor Stations, Pumping Stations, Pressure Reducing Station

General Features

Local & Remote Control (Standard), ESD, Emergency Reservoir, Partial Stroke Test (Optional)

  • Quarter Turn Actuators / G
  • Linear Actuators / A

GO AO

Gas Over Hydraulic Actuator

  • Working Pressure: 10-120 Bar
  • -29 to +80 Working Temperature
  • -60 Working Temperature (Available upon request)
  • It can be used as Line Break System
  • It can be used as Emergency Shut Down System

GD AD

Double Acting Hydraulic Linear or Quarter Turn Hydraulic Actuators

  • Working Pressure: 20-350 Bar
  • Hydraulic Oil
  • Working in different voltage supplies is optional
  • Manual Hand Pump
  • Exproof Protection
  • IP Protection
  • -29 to +80 working temperature
  • 24, 48,110 V AC/DC Control Voltage
  • Works through the actuator or external
  • Hydraulic Power Pack
  • -60 Working Temperature (Available upon request)

GS AS

Safety Shut-Off Valve & Actuator System for High and/or Low Pressure Close

  • Working Pressure: 10-112 Bar
  • -29 to +80 Working Temperature
  • -60 working temperature (Available upon request)
  • 150-300-600 Pressure Class (Available upon request)

GI AI

High Pressure Gas Double Acting Actuator System

  • Working Pressure: 16-120 Bar
  • -29 to +80 Working Temperature
  • -60 Working Temperature (Available upon request)
  • 150-300-600 Pressure Class (Available upon request)

GP AP

Pneumatic Double Acting Actuator

  • Working Pressure: 4-12 Bar (Air, Nitrogen, NG)
  • Exproof Protection
  • IP Protection
  • -29 to +80 Working Temperature
  • 24,48,110 V AC/DC Control Voltage
  • Optional Manual Hand Wheel

GC AC

Pneumatic Single Acting Spring Return Fail Close Actuator

  • Working Pressure: 4-12 Bar (Air, Nitrogen, NG)
  •  Exproof Protection
  • IP Protection
  • -29 to +80 Working Temperature
  • Optional Manual Hand Wheel
  • 24,48,110 V AC/DC Control Voltage
  • Manual Hand Wheel or Gearbox connections optional

GL AL

Electro Hydraulic Single Acting Spring Return Fail Close

  • Working Pressure: 20 to 350 Bar (Hydraulic Oil)
  • Standard 400 VAC Energy Supply
  • Exproof Protection
  • IP Protection
  • Working in different voltage supplies is optional
  • -29 to +80 Working Temperature
  • 24,48,110 V AC/DC Control Voltage
  • Manual Hand Wheel or Gearbox connections and Manual Hand Pump is optional
  • Works through the actuator or external Hydraulic Power Pack

GN AN

Pneumatic Single Acting Spring Return Fail Open Actuator

  • Working Pressure Max. 4 to 16 Bar (Air, Nitrogen, NG)
  • Exproof Protection
  • IP Protection
  • -29 to +80 Working Temperature
  • 24, 48,110 V AC/DC Control Voltage
  • Optional Manual Hand Wheel or Gearbox

GF AF

Electro Hydraulic Single Acting Spring Return Fail Open Actuator

  • Working Pressure: 20 to 350 Bar, Hydraulic Oil
  • Standard 400 VAC Energy Supply
  • Working in different voltage supplies is optional
  • Exproof Protection
  • IP Protection
  • 24,48,110 V AC/DC Control Voltage
  • -29 to 80 Working Temperature
  • Manual Hand Wheel or Gearbox connections and Manual Hand Pump is optional
  • Works through the actuator or external Hydraulic Power Pack

GT AT

Tandem Pneumatic & Hydraulic Double Acting Actuator

  • Working Pressure Hydraulic: 20 to 350 Bar (Hydraulic Oil, Pneumatic 4 to 12 Bar Air, Nitrogen, NG)
  • Manual Hand Pump, Hand-wheel or Gearbox connection possible.
  • Standard 400 VAC Energy Supply
  • Working in different voltage supplies is optional
  • Exproof Protection
  • Works through the actuator or external Hydraulic Power Pack
  • -29 to +80 Working Temperature
  • 24, 48,110 V AC/DC Control Voltage
  • IP Protection

GM AM

Manual Hydraulic Double Acting Actuator

  • Working Pressure: 20 to 350 Bar Hydraulic Oil
  • Works with Manual Hand Pump
  • Exproof Protection
  • IP Protection
  • Works with Manual Handwheel Manual Gearbox
  • -29 to +80 Working Temperature
  • 24, 48,110 V AC/DC Control Voltage

GH AK

High Pressure Gas Single Acting Spring Return Fail Close Actuator

  • Working Pressure Max. 16 to 120 Bar (Nitrogen, NG)
  • Exproof Protection
  • IP Protection
  • -29 to +80 Working Temperature
  • 24,48,110 V AC/DC Control Voltage
  • Optional Manual Hand Wheel or Gearbox

GR AR

High Pressure Gas Single Acting Spring Return Fail Open Actuator

  • Working Pressure Max.16 to 120 Bar (Nitrogen, NG)
  • Exproof Protection
  • IP Protection
  • -29 to 80 Working Temperature
  • 24,48,110 V AC/DC Control Voltage
  • Optional Manual Hand Wheel or Gearbox