It is a kind of self-operated actuator, which can drive the valve action by using the pressure of the medium in the pipeline to open or close the valve. The gas-liquid linkage actuator has simple working principle, safe and reliable control, and strong environmental adaptability, which can meet the harsh all-weather weather conditions outdoors.
This product directly utilizes pipeline natural gas as a power source. The pneumatic hydraulic system is designed according to high pressure, through filtering and processing the air source without decompression, directly into the air storage tank and the high pressure pneumatic control valve group. Under the action of the control signal, the high-pressure controlled gas enters the corresponding gas/liquid circuit, and the liquid medium uses the principle of equal pressure transmission to realize the gas-liquid synchronous transmission acting on the hydraulic cylinder of the valve drive device, thereby controlling the valve.
This product directly utilizes pipeline natural gas as a power source. The pneumatic hydraulic system is designed according to high pressure, through filtering and processing the air source without decompression, directly into the air storage tank and the high pressure pneumatic control valve group. Under the action of the control signal, the high-pressure controlled gas enters the corresponding gas/liquid circuit, and the liquid medium uses the isobaric transmission principle to realize the gas-liquid synchronous transmission acting on the hydraulic cylinder of the valve drive device, thereby controlling the valve.
"Pressure is power" is the concise and most perfect interpretation of the working principle of the gas-liquid linkage actuator. The gas pressure of the pipeline natural gas is the power used by the gas-liquid linkage actuator to complete the control and realize the switch.
A variety of control methods can be provided according to user requirements
◆ Local control and remote operation
◆ Local and remote control, emergency shutdown
◆ Local and remote control, power-on (power-off) accident safety
◆ Local control such as air control operation, hydraulic manual pump operation, remote prohibition/local hold operation
◆ Local control/remote control to realize automatic partial stroke switch test
◆ Lithium battery power supply (optional external power supply and solar power supply)
Multiple control methods can be provided according to user requirements, for on/off type and adjustment quarter-turn ball valve, butterfly valve, plug valve or damper flapper
Standard range: -30 to 100°C ( -20 to 210°F )
Optional range: -55 to 150°C ( -65 to 300°F )
Working pressure: 0.4MPa-16MPa
Working medium: compressed air, purified natural gas, high pressure nitrogen, etc.
Torque range: 600000Nm
Innovatively designed dedicated, integrated, functional, cartridge hydraulic hand pump
A multi-functional, hydraulic manual pump with universal operation and synchronous self-locking is a patented product invented by our company and has a number of independent intellectual property rights.
Michaelson's R&D personnel emphasize people-oriented when designing hand pumps. The innovations included in the control module of the entire actuator are based on improving the convenience and safety of operation.
■ The operating handle can be rotated 360° in the horizontal plane, with strong controllability.
■ The hand pump holder supports the handle to be inserted into the handle from three positions, and the operator is more humanized in terms of operation position and force method
■ The piston of the pump body can realize the self-locking of the hand pump synchronously, which can effectively protect the plunger, and the safety is also higher
■ The operating space is greatly saved, and the operating handle is detachable, and the installation space and packaging size are relatively reduced. The advantages of the process pipeline in the dense installation and layout of the equipment are obvious.
Electro hydraulic actuators generally consists of four parts: actuation mechanism, control system, hydraulic station, control and operation cabinet (control box)
The pressure of the hydraulic system Low pressure could reach 10.5MPa Medium pressure could reach 21.0MPa High pressure could reach 35.2MPa
Local and remote control, tube rupture emergency cut-off actuator
Used with electric tube rupture detection system. This system is used in long distance transportation pipeline of oil and gas, where there’s power supply but isn’t reliable. Combined use of hydraulic system and pipeline rupture detection
system, when the pressure drop rate reach the preset value, the tube rupture system send a signal to let the actuation
mechanism closing the valve. Combined usage of electric powered hydraulic pump and energy accumulator could
lower the requirements for power source of the hydraulic actuation mechanism.
Local and remote control, electrification accidents and safety
Under normal operating situation, the actuator supplies power normally, when the system loses power, close or openthe valve according to craftsmanship requirements
Local and remote control, ratio adjustment
With regard to situations require for higher flow adjustment precision, adjust the valve with hydraulic ratio system.
Local and remote control, servo adjustment
With regard to situations require that the flow adjustment must be line-type, and the opening must be controlledstrictly, hydraulic servo system could be used to adjust the valve.
Solar energy power supply hydraulic system
Particularly used in situations where there’s no power and gas supply, such as long distance transportation pipelines.
Slow-closure dual speed control
Used to control water and oil transportation pipelines, preventing from water hammer phenomenon
Rapid switch control
●With regard to different kinds of valves, instant opening and closing operation could be done within 0.5 second
●The actuation mechanism for completing rapid switch function could be either single operation spring type or dual operation type
●The design of the control valve is high pressure preservative and zero leakage
●The electro-magnetic valve is integrated in the oil circuit module with other hydraulic control components, preventing from leakage.
●Hydraulic pipe: generic stainless steel material
●Either carbon steel or stainless steel could be chosen to be the material of the control cabinet
●The patented design of parallel, double-orientating fork-type transmission box provides relatively higher open torque for the valve stroke. The output torque could reach 600,000Nm
●Hydraulic media Hydraulic oil or other flame retardant hydraulic liquid
●Environment temperature -40 +100 Special temperature according to clients' requirements
●Local control such as manual operation, local manual pump operation, local control box operation
●Local control or remote control operation
●Local and remote control, emergency cut-off
●Rapid opening and closing
●Local and remote control, electricity supply accident safety
●Local and remote control, proportional control
●Local and remote control, servo adjustment
●Solar power supply method
●Slow-closure type dual speed control
◆ ISO99001 quality system certification, all executive agencies produce in strict accordance with ISO9001 quality system
◆ The actuator is 100% inspected when it leaves the factory, and a test report is attached to each set of electro-hydraulic actuators
DG series double guide fork type actuator includes 4 types 6 grades and 24 specifications about more than - - . ( 200 varieties The output torque is 20Nm 600000Nm the pressure of air source is 0 4Mpa 16Mpa and the ). ~ , . ~ , supporting valve includes the application requirements of 1" 56 Class900 pipeline ball valve
Remark: The output torque reaches to 600,000 Nm and the starting torque 56 1500LB of the valve in whole "differential pressure is about 375,450Nm;
The pneumatic actuator of Mikenson was designed by Chengdu Mikenson in 2019 and assembled in August 2020
◆ The external hydraulic source at the customer site is the highest. The hydraulic actuator is equipped with its own control panel and control accessories 35MPa
◆ Patented series parallel, double-guided fork transmission box can provide high opening torque DG for quarter-travel valves
◆ Combined structure bearing can provide reliable and smooth operation and prolong the service life of the actuator
◆ The high pressure power of the hydraulic system makes the hydraulic actuator have a smaller weight than other actuators such as pneumatic and electric
◆ The oil tank, hydraulic pump, accumulator, etc. are organically combined according to user requirements to form a stable and reliable hydraulic power source, which can meet both general needs and places with low power reliability.
◆ The combination of pressure, flow and directional control valves and abundant electrical control components constitute various hydraulic control systems, which can meet the different functions and requirements of users for protection and explosion protection. The incompressibility of the hydraulic medium and the realization of zero leakage and high pressure retention in the system make Hydraulic actuators have extremely high positioning characteristics
◆ It can realize emergency self-protection functions such as opening and closing of valve power failure
◆ It can realize the function of quick closing and quick opening of the valve
◆ In high temperature and flammable occasions, flame retardant hydraulic fluid can be used as the medium (such as water-glycol emulsion, etc.)
◆ Provide asymmetric and symmetrical forks for valves with different characteristics
◆ The external travel limit bolt is precisely adjustable within the range of 90±5°
1. The pressure of the hydraulic source can reach 35MPa, and the actuator has its own control panel 2. The hydraulic actuator is equipped with its own control panel and control accessories