AAVS — Absolute Actuator and Valve Sales
All products

Electric, electro-hydraulic & gas-over-oil

Actuators

The full Greatork range, from AVA-series electric multi-turn and quarter-turn units to YK/YKT electro-hydraulic and gas-over-oil actuators for pipeline duty. Every unit is sized to your torque, duty cycle and control signal.

Greatork
Multi-Turn Actuator

Actuators

Multi-Turn Actuator

Motorised multi-turn drive for gate, globe and sluice valves, penstocks and dampers.

  • AVA01–AVA10
  • To 100,000 Nm with BA bevel gearbox
  • Local & remote control

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Quarter-Turn Actuator

Actuators

Quarter-Turn Actuator

Quarter-turn automation for ball and butterfly valves.

  • AVAT / AVATM01–AVATM06
  • 90° travel
  • Lever option

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Smart Quarter-Turn Intelligent Actuator

Actuators

Smart Quarter-Turn Intelligent Actuator

Intelligent quarter-turn control for ball and butterfly valves, with on-board diagnostics.

  • AVAR / AVARM5–AVARM100
  • Non-intrusive setup
  • Lever option

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Linear Electric Valve Actuator

Actuators

Linear Electric Valve Actuator

Modulating linear drive for control valves such as globe valves.

  • AVAMD01–AVAMD05
  • Thrust 8.1–45.5 kN
  • Modulating duty

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Standard Linear Electro-Hydraulic Actuator

Actuators

Standard Linear Electro-Hydraulic Actuator

Self-contained linear electro-hydraulic drive for control valves. Full hydraulic capability with a simpler installation.

  • YK series
  • Closes within 1 s on failure
  • Open / close / stay-put on power loss
  • Zero leakage

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Actuators

Standard Quarter-Turn Electro-Hydraulic Actuator

High-torque electro-hydraulic drive for ball and butterfly valves.

  • YKT series
  • 60 Nm – 120 kNm
  • 5 Hz response, <0.1% accuracy
  • Ex d IIB T4 / IIC T4 option

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Separated Mount Linear Electro-Hydraulic Actuator

Actuators

Separated Mount Linear Electro-Hydraulic Actuator

YK linear performance with the control box mounted remote from the valve, for restricted or inaccessible positions.

  • YK series
  • Remote-mounted control box
  • Separation distance to spec

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Separated Mount Quarter-Turn Electro-Hydraulic Actuator

Actuators

Separated Mount Quarter-Turn Electro-Hydraulic Actuator

Quarter-turn electro-hydraulic drive for high-vibration, corrosive or hard-to-access installations.

  • Remote-mounted control box
  • ATEX / watertight covers
  • Separation distance to spec

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Standard Gas-Over-Oil Actuator

Actuators

Standard Gas-Over-Oil Actuator

Pipeline-gas powered actuation for transmission duty: river crossings, station by-pass and entry/exit protection, ESD and remote control.

  • Pipeline gas or N₂ cylinder drive
  • External adjustable stop nut
  • OLED low-temperature display
  • <0.24 W electronics

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Line Break Protection Gas-Over-Oil Actuator

Actuators

Line Break Protection Gas-Over-Oil Actuator

Built on the standard gas-over-oil platform, it closes the line automatically on detected pipeline leakage.

  • 3 × pressure sensor groups
  • Explosion-proof
  • SIL approved

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Solar Power Gas-Over-Oil Actuator

Actuators

Solar Power Gas-Over-Oil Actuator

Gas-over-oil actuation for sites with no mains supply. The solar array stores 24 V and reports status back to the control room.

  • Solar 24 V supply
  • No external power required
  • Remote status feedback

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Don't see exactly what you need?

We source and size to specification. Tell us the duty and we'll come back with options.

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