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ML8824A Series Electric Linear Valve Actuator
ML8824A Series
Electric Linear Valve Actuator
Application
ML8824A Series electric linear valve actuators offer modulating controls for linear valves with position feedback signal, 0(2)-10Vdc or 0(4)-20mA. The products can be widely used with linear valves in heating, ventilation, and air conditioning application.
Features
• Quick and easy installation
• Lower power consumption
• Maintenance-free
• Self-adaption mode
• Adjustable travel speed
• Manual operation with override functions
• 0(2)~10 Vdc, 0(4)~20 mA input signal
• 0(2)~10 Vdc, 0(4)~20 mA position feedback signal
Technical Specififications
Temperature Limits
Ambient storage temperature
-10~+55 °C (5~95% RH)
Medium temperature
-40~+65 °C (4~95% RH)
Operating medium temperature up to 130 °C
Signals
Input signal ： 0~10 Vdc, 2~10 Vdc
Voltage input impedance ： >100 KΩ, 0~20mA, 4~20mA
Current input impedance ： <0.125KΩ
Feedback signal ： 0~10 Vdc, 2~10 Vdc, 0~20mA, 4~20mA
Safety
Materials
Electrical protection class III (EN60730-1)
Protection class IP54 (EN60730)
Upper Cover ： PC plastics
Housing ： 600N - Plastics 1800N - Cast aluminum
Bracket ： Cast aluminum
Table 1. Model Selection
|
Model No. |
ML8824A0620 |
ML8824A1820 |
ML8824A1840 |
|
Supply Voltage |
24Vac ± 15% ,50/60Hz; 24Vdc +15% ,-10%; |
||
|
Power Consumption |
7VA |
14.5VA |
14.5VA |
|
Signal input 1 0(2) Vdc or 0(4) mA |
The valve connection is located at the bottom;
|
||
|
Signal input 2 10Vdc or 20mA |
The valve connection is located on the top; 2-way valve "open"; 3-way valve A-AB port "closed" ① |
||
|
Feedback Signal |
0(2)~10 Vdc, 0(4)~20 mA |
||
|
Rated Travel |
20mm |
20mm |
40mm |
|
Run time |
60s or 80s |
40s or 60s |
80s or 120s |
|
Close-off force |
≥600N |
≥1800N |
|
|
Weight |
1.3kg |
2.3kg |
2.4kg |