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EKR Rotary Actuators: Semi-Rotary Ring Main

These Ring Main operated Actuators are a closed loop system with electronic positioning from a variety of electronic control signals with fully adjustable thrust and speed for each rotational direction of travel.

Key Product Features

- Fully modulating or isolating
- From weatherproof to hazardous area Zone 1 IIB T3
- Fail fix or fail close/open
- Torques up to 135,000NM
- Adjustable speeds
- Solar powered if required
- Working pressures up to 245 BARG

The EK range of actuators is suitable for on-off (isolating) or continuous (modulating) duty and can readily interface with a computer, programmable logic controller or conventional electrical control gear. Actuators can be made to respond to either analogue or digital control signals and can be supplied with solid state adjustable set points to correspond to desired positions of travel, mechanical limit switches, transducers, potentiometers, starters, position controllers and continuous position indication.

The versatility of hydraulics enables simple adjustment of speed and thrust/torque whilst various valve combinations enable the piston rod/output rod to be either locked or unlocked when at rest. Manual operation can be provided via a handpump whilst emergency power operation utilising either disc springs or accumulators can be incorporated as required.

Data Table

TYPE

UP TO TORQUE (NM)

CLOSING TIME RANGE (S)

MAX ANGLE DEGREES

WEIGHT (KG)

MOTOR RATING (KW)

EKR-1

5000

2.0 - 15.0

90/180/360

34-45

0.25

EKR-2

30,000

0.5-5.0

90/180/360

75-86

1.1

EKR-3

90,000

5.0-33

90/180/360

153-394

3.0/5.5

 

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