Rotex EHF Series Actuators are self contained; electro-hydraulic actuators are particularly well suited for applications requiring critical control and high reliability.
The EHF series has a wide range of applications and is resistant to environmental influence, even in marine environments. The electro- hydraulic actuators are recommended within district heating plants, oil and gas depots where Explosion-proof equipment is required and where pressurized air is not available or unsuitable. Within the oil and power industry, safety is of the highest importance. In emergency situations the failsafe function i.e. close or open the valve automatically with the aid of a return spring in the actuator.
Advantages:
- Reduced installation and maintenance costs
- Most reliable means of positioning a valve in a safe position on loss of power or signal
- The actuator is constructed for direct mounting on valves according to ISO-standards.
- Designed for safety critical applications
- Confirms valve availability and minimises plant shutdown
- Improved process control and product quality
- Provides local operator information
- Complete sealing allows calibration and interrogation of the actuator in all environments
- Environmental protection maintained for internal components during installation and commissioning
- Interfaces with a variety of communication networks
- Suitable for harsh environments including immersion up to 7m
WHY ROTEX?
- Do you have leakages due to too many piping?
Rotex EHF has no external tubing for ineterconnecting different blocks, the only tubing is from frame to Actuator.
- Do you spend more for modulating system for higher accuracy anf lower dead-band?
Rotex EHF has unique PID with ADAPTIVE PID loop, providing accuracy, dead band less than 0.1 % using high performance solenoid valves.
- Do you spend time in understanding the abbreviated menu and alarms?
Full featured LCD display, no abbreviations, no operating manual required
- Do you have problem in viewing open close indicators at night?
Special GLOWDAPT dome indicators, suitable for 360° viewing and visible at night.
- Do you face operational failures due to moisture, vibration etc?
Rotex EHF is IP 68 and has Remote Mount capability up to 50 m.
ROTEX EHF Series solves all of the above problems and guarantees performance!!
With the combination of modern electronics and power of hydraulics, ROTEX EHF series is super efficent in providing precise control for high cyclic demand or ESD application. EHF series actuators are suitable for use in Safety Intergrated System (SIS). It has functional safety capability including and upto SIL 2 & SIL 3 to IEC 61508:2010.
ROTEX EHF series is a self contained electrohydraulic actuator suitable for linear and rotary applications. It can be customized to suit a given application. EHF series of actuator has an intergral electronic control module which drives the electrical motor, pump and solenoid for operations. The logical module is responsible for diagnostics, alarms, fault messages and communication.
