OA On-off Type Bernard electric actuator has archieved an excellent reputation over the years in this market thanks to a range of actuators providing the following features:
1.Compact construction with a high output torque
2.Self-locking gear train to maintain the position of the valve when the actuator is de-energized
3.Very good resistance to vibrations
4.Very simple settings - no specific tool required
5.Adjustable mechanical travel limit stops to prevent overtravel
6.Removable drive socket for easy machining
7.Emergency handwheel and mechanical position indicator provided on all
8.actuators as a standard
Quarter-turn electric actuator can be used to control various valves with a regulating angle of 0-90° and the torque range is: 35-10000Nm. It can used for control all of quarter-turn valve like: flue cut-off gate, boiler’s primary and secondary wind, boiler’s side wind, air pre-heater inlet and outlet damper
regulator, butterfly valve, ball valve, louver valve, damper, plug valve, flapper valve, etc. Explosion-proof Grade: IP67, IP68.
Can be equipped with valves
Technical Specifications
Case/protection:
1.Case material:Cast aluminium Surface with cationic epoxy coating
2.IP grade:IP67 IP68
3.Ambient temperature:Standard: -20...+70 ℃/Optional low-temperature type: -60...+70℃ Optional: -20...+60℃
Motor
1.Motor technology:
Motor insulation grade F
Internal overheat protection
Shield ball bearing installed before and after, easy to disassemble
2.Motor operation:
S4 motor (AC) as per IEC34-1
S4-30%: Switch operation - maximum 360 starts per hour
S4-30%: Inching/positioning operation - maximum 360 starts per hour
S4-50%: Regulating Class III operation - maximum 1200 starts per hour
Mechanical specification
1.Gear transmission:Self-locking available at all speeds
2.Manual operation:Hand wheel does not rotate during electrical operation
Free switching between manual and electrical operations, manual clutch free, electrical operation priority
3.Output flange:Multi-turn actuator in compliance with ISO 5210 standard
Angular-motion actuator in compliance with ISO 5211 standard
Optional flange for special valve top sizes
4.Lubrication:Lubrication on actuator is effective throughout service life and is free from regular maintenance
5.Power suppl:Multiple power supply choices:3P, 1P or DC Max. 480V 50/60Hz...
6.Cable input:
Standard configuration:
Power supply and signal: 1”1/2NPT + 2*1”NPT
Field bus: Up to 4*3/4” NPT
Other options: Plug, adapter, ISO thread
7.Wiring:Tongue-ring terminals Internal and external grounding terminals
8.Fuse protection:Main fuse (6.3*32mm-0.5A) on transformer panel Two LV fuses
9.Position:
Motion measurement on main shaft (direct mechanical connection)
Absolute transducer (battery free)
Measurement range: 1.5~900 rpm (optional: over 900 rpm)
10.Torque:
Dynamic equilibrium dynamometer adopted for torque measurement
Absolute transducer (battery free)
Setting range: 40~100% of maximum actuator torque, with 1% stepping
Measurement range: 10~100% of actuator torque, at 1% resolution
11.Stroke limit switch:
4 single-pole double-throw stroke limit switches
Switching capacity: Max. 250VAC @ 16A / 48VDC @2.5A
380V/50Hz/3PH
Max Torque Nm | Operating Torque Nm | Model of Actuator | Operating Time S/90˚ | Flange (ISO) | S4: Dynamo Working System 50% | |||
Power KW | Rotate Speed rpm | Rated Current A | Start-up Current A | |||||
60 60 | 60 60 | OA6 | 6 3 | F05/07 F05/07 | 0.03 0.04 | 1500 3000 | 0.3 0.3 | 0.5 0.7 |
100 80 | 60 60 | OA8 | 6 3 | F05/07 F05/07 | 0.10 0.14 | 1500 3000 | 0.6 0.7 | 1.1 2.8 |
80 | 60 | OAP | 30/60 | F05/07 | 0.03 | 1500 | 0.3 | 0.5 |
150 | 80 | OA15 | 25 | F07 | 0.03 | 1500 | 0.3 | 0.5 |
250 | 140 | ASP | 30/60 | F07/(10) | 0.03 | 1500 | 0.3 | 0.5 |
500 500
| 250 250 | AS50 | 30 60 | F10/(07) | 0.06 0.06 | 1500 750 | 0.3 0.6 | 0.8 0.9 |
1000 1000 | 500 500 | AS100 | 30/45 80 | F12/(14) F12/(14) | 0.10 0.03 | 1500 1500 | 0.6 0.3 | 1.2 0.5 |
1000 1000 | 600 600 | BS100 | 30 60 | F12/(14) F12/(14) | 0.10 0.06 | 1500 1500 | 0.6 0.3 | 1.1 0.8 |
2500 | 1250 | AS200 | 70 | F16/(14) | 0.10 | 1500 | 0.6 | 1.2 |
4000 | 2000 | AS400 | 125 | F16 | 0.10 | 1500 | 0.6 | 1.2 |
220V/50Hz/3PH
Max Torque Nm | Operating Torque Nm | Model of Actuator | Operating Time S/90˚ | Flange (ISO) | S4: Dynamo Working System 50% | |||
Power KW | Rotate Speed rpm | Rated Current A | Start-up Current A | |||||
60 | 60 | OA6 | 6 | F05/07 | 0.03 | 1500 | 0.6 | 0.9 |
100 | 60 | OA8 | 6 | F05/07 | 0.06 | 1500 | 1.2 | 1.7 |
80 | 60 | OAP | 30/60 | F05/07 | 0.03 | 1500 | 0.6 | 0.9 |
150 | 80 | OA15 | 25 | F07 | 0.03 | 1500 | 0.6 | 0.9 |
250 | 140 | ASP | 30/60 | F07/(10) | 0.03 | 1500 | 0.6 | 0.9 |
500 500
| 250 250 | AS50 | 30 60 | F10/(07) | 0.06 0.08 | 1500 750 | 1.2 1.5 | 1.7 2.4 |
1000 1000 | 500 500 | AS100 | 45 80 | F12/(14) F12/(14) | 0.15 0.06 | 1500 1500 | 2.0 1.2 | 3.0 1.7 |
1000 1000 | 600 600 | BS100 | 30 60 | F12/(14) F12/(14) | 0.15 0.06 | 1500 1500 | 2.0 1.2 | 3.0 1.7 |
2000 | 1200 | AS200 | 70 | F16/(14) | 0.15 | 1500 | 2.0 | 3.0 |
3000 | 2000 | AS400 | 125 | F16 | 0.15 | 1500 | 2.0 | 3.0 |
Wiring Diagram
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