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Rotary Actuators – HyRAV Rotary Actuator

HyRAV® – more powerful, compact, safer  and tailored perfectly to your demands The hydraulic valve actuators HyRAV of Eckart, form a full series of double-acting actuators or spring return actuators according to the principle of helical gears. The compact and concentric design of the valve has proven to be excellent in practice and provides the customer with space savings as well as reliability. Moreover, the HyRAV series can be applied in the most severe conditions, i.e. from high vibrations to severe environmental locations, and further, provides a powerful, safe  solution for automation of valves. Additionally, the series is easily adapted to all types of valves, what is a result of the generous design of the hollow shaft and adaptable flange types.

Advantages at a Glance:

  • 12 drive sizes with torques up to 250,000 Nm at 210 bar
  • Small dimensions, slim and compact style
  • Smallest footprint to torque ratio
  • By concentric design are no radial forces transmitted to the valve
  • Optimum cushioning protects the valve and actuator
  • Easy installation and adjustment to each valve
  • Maintenance free, no lubrication required
  • Suitable for on/off, control and failsafe operation
  • High repeat accuracy and very simple control of the flow rates
  • Extremely trip possible (eg. 90° in 0.2 sec.)
  • Robust against extreme environmental conditions
  • Durable against vibrations

Technical Data (Standard – Others on Request)

Valve Actuator Type

Helical gear – double acting or single acting (spring return)

Max. Allowable Operating Pressure

210 bar / 3,000 psi

Min. Operating Pressure Required

5 to 10 bar / 10 to 145 psi

Angle of Rotation

Quarter-turn / 0-90º, 120º, or 180º +

Position of Accuracy

< 0.5º of full scale

Medium

Standard hydraulic oil: mineral oil of group

Ambient Temperature

-25 to 70ºC / -13 to 158ºF

Protection Class

IP68

Valve Attachment Flange

EN ISO 5211

Double Acting Lifetime

>100,000 operations

Single Acting Lifetime (Fail-Safe)

Dependent on the desired spring package

Duty Rating

S1 – 100%

Operating Time Range

0.5 sec. to 200 sec.

Max. Speed Fail-Safe

As fast as 0.1 seconds
(Dependent on the valve actuator size)

Certificates/Approvals

ATEX, SIL2/3, further in processing/planning, and as required

Materials, Standard

Steel, GGG

Seal Material, Standard

PU / NBR

Applications

Industries

Applications

Power

Power plants (coal, gas, oil, nuclear)
Hydro electric power plants
Geothermal power plants
Solar thermal power plants
Biogas power plants

Oil & Gas

Exploration, offshore
Refineries
Pipelines
Tank farms

Water

Steel hydraulics construction
Water treatment plants
Sewage treatment plants
Drinking water disruption

Industrial
& Special Solutions

Shipbuilding & submarines
Chemical / pharmaceutical industry
Food industry
Air conditioning
Steel mills

Eckart is a supplier and valve rotary actuator manufacturer for various applications including construction, mechanical, marine, and industrial.


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