main features
The DY electro-hydraulic actuator adopts a highly integrated modular design, and the hydraulic integration does not require an external oil source.
The DY20/21 series products can achieve single acting and double acting working modes, and can be matched with butterfly valves, ball valves, plug valves, dampers, gate valves, globe valves, etc. It is widely used in petroleum, chemical industry, metallurgy, electric power, light industry, ships, building materials, urban water treatment and many other fields to realize the regulation or cut-off control of valves.
Optional switch and adjustment types, with linear and angular travel options
High speed fault reset function, which can achieve fault open, fault close, and fault hold functions
Fault self diagnosis function
On site installation, verification, positioning, and parameter setting functions
Programmable segmented speed control function
Full open hold, full close hold, and position hold functions
Fully open and fully closed reinforcement functions
On site movement and on site long movement function
Remote control point action, remote control long action, and remote control analog quantity adjustment function
PST partial stroke testing function
Fully open, fully closed, and valve position feedback function
Fault alarm and reset function
technical parameter
Power supply (optional)
DC:24V;48V;72V
AC (50 60Hz) :110VAC/1P: 220VAC/1P
380VAC/3P; 400VAC/3P: 415VAC/3P
Torque range (angular stroke)
150Nm-250000Nm
Thrust range (straight stroke)
16KN-1250KN
Fault reset (optional)
Fault open; Fault shutdown; Fault protection
Protection level
IP67
control accuracy
Level 0.5
Basic error
≤0. 5%
Repeatability
≤0. 5%
Adjust dead zone
0. 5%
Action response time
0. 5S
Environmental temperature (optional)
-20 to+70 ℃- 40 to+70 ℃
Electrical interface
1-NPT1-1/4; 1-NPT1; 2-NPT3/4
control mode
Switch type, adjustable type
control signal
Dry contact or 24VDC
state feedback
Dry junction
Valve position feedback
4-20mA active
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