HyRAV® Flex
Eckart_HyRAV-Flex-D_L_30fs | © Eckart GmbH - Germany

Valve actuator HyRAV® Flex

powerful, compact and safe

at a glance

    • small dimensions
    • slim and compact style
    • durable against vibrations
    • easy installation and adjustment to each valve
    • robust against extreme environmental conditions
    • concentric design protects the valve and the spindle
    • no lubrication required, because all moving parts of the actuator are permanent in the oil bath
    • ISO5211 or ANSI flange
    • ATEX and SIL

even under extreme conditions

The HyRAV® Flex rotary actuators form a complete series of dual-action or spring-return rotaty units which work according to the helical gear principle.

The compact and concentric fitting on the valve has proven to be effective in practice and the unit is both space-saving and reliable. This series can be deployed in the most difficult conditions, from heavy vibrations to adverse ambient conditions, and offer a powerful and safe solution for valve control.

Due to the spacious, hollow shaft design and customisable flanges, the series can be adapted to each valve type.



Size14 sizes
max. torque at 210 bar250 to 250.000 Nm
(184.76 to 184,757.77 lb-ft)
max. allowable operating pressure210 bar (3045.78 psi)
higher on request
min. operating pressure required5 to 10 bar
(72.52 to 145.04 psi)
Angle of rotationStandard 90° (also 120° and any intermediate angle)
MediumHydraulic fluids DIN 51524, ISO 11158
HFC, HFD others on request
Installation positionas required
Temperature range-25°C to +70°C (-13°F to +158°F)
higher or lower on request
Protection classIP 68
Lifetimedouble acting: > 100.000 operations
single acting (fail Safe): dependent on the desired spring package
Duty ratingS1 - 100 %
Operating time range OPEN/CLOSE0,5 sec. to 200 sec.
max. time range Fail Safe OPEN/CLOSEtill 0,1 sec. (dependent on the valve actuator size)
Certificates/approvalsSIL2/3, ATEX, further in processing/planning
Weight 90°14 to 1580 kg
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