/ -55 to 70 Celsius (Low)
- Ambient Temperature:-40 to 70 Celsius (Standard)
/-55 to 70 Celsius (Low)
- Ingress Protection LevelIP65
- Explosion-proof LevelEx d IIB/IIC T4
- Safety Integrity Level:Fulfills SIL2(1001)/SIL3(1002) Standard
- First electro-hydraulic actuator with line break protection system
- Emission-freefully enclosed, and highly effective
- Modular structure, tight design, easy to maintain
1Fully closed hydraulic pressure system
After using the air filter for a period of time, water and solid particles accumulate in the oil, damaging its quality; as a result, some valve parts may wear down.
This design with the oil cylinder open to the air requires the cylinder to be permanently vertical, otherwise, the oil will spill out. It is not convenient for transportation, and limits the installation direction of the actuator.
This technology ensures that no air bubbles will be present in the hydraulic oil. There is little impact on the control valve during operation, with a system of high stability.
As water or dust cannot enter the hydraulic system, it makes the system maintenance much easier and extends its service life.
2Integrated Design of the Hydraulic Control System
Automatic control parts including electric monitor, hydraulic pump, and solenoid valve, etc. are all installed in an enclosed box. This avoids possible corrosion cause by water, dust, or chemical air, while making it stronger and able to withstand accidental impact.
First develop technology ahead of the industry by making new modules, manual switch, long-distance control, ESD control system, ESD series redundancy, ESD parallel redundancy, LBP burst protection, quick opening and closing speed.
3Open and close time can be adjusted independently
By adjusting the valve in the hydraulic control system, one can strictly control the switch time. The rapid opening or closing of the gas pipeline can prevent the slow closing of the water hammer effect.
4Advantages of Fully-sealed System
All hydraulic valves and soft seals should not leak even in extream environmental conditions. This reduces the frequent start of the hydraulic pump, decrease power comsumption, and sustain the power of the electro-hydrualic actuator for a long period of time.
5Accommodate Low Temperature Environment
The design of electro-hydraulic actuator combined with years of experience in the selection and application of cryogenic metals and non-metallic materials makes the products unaffected in severe environmental conditions. As a whole, the product can operation in -40 degrees Celsius condition with no heat preservation or heating measures needed. If needed, the product can even operate at -55 degrees Celsius.
6Electric Control SystemThe electric control system of the electro-hydraulic actuator monitors the hydraulic pressure of the system in real time and automatically controls and starting and stopping of the pump.The hardware and software of the electric control system are both developed and designed by Zhonghuan, with our full proprietary intellectual property rights.
All weather OLED display screen, operates at -40 degrees Celsius
Optional line break protection (LBP) function
Partial stroke testing(PST) function for early discovery of valve failure
Ten-channel surge prevention and isolation design for increased stability and safety
PID automatic control of electric moto rotation speed and pressure, contributing to the stability of the system's operation
System self diagnosis and alarm: smart management strategy
EXCEL file directly generated after alarm, and data recorded to a U disc for easy management