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1. Indicator
The dome type indicator is directly mounted on the center column to provide positive visual indication of the valve position even over long distances.
2. Capacitor
3. Terminal Block
Quality terminal block containing segregated power and control terminals are designed for use in high vibration environments.
4. Limit Switch
   &Torque Switch
One each for Open and Closed.
5. Body
6. Base
7. Drive Bushing 8. Window
9. Motor

Squirrel caged induction motor is torally enclosed type with high stall torque and low inertia force to suit seating/ unseating of valves.
Integral thermal protection to prevent damage to the single/ three phase motor.

10. Heater

11. Hand Wheel

12. Manual Override
Hand/Auto declutching lever for engagement of handweel.
The power drive is automatically resorted by the motor starting.
13. Lever
14. Worm Gear
The precision worm and worm wheel mechanism transfers
high torque with high efficiency and low sound level( Max.5
0d B) even though small in size.
Additional benefits include low backlash and longer life. Various output torques(60Nm~2,500Nm) cater for valves from 2" to 24".
 
 
 
 

Standard enclosure with o-ring sealing is watertight to IECIP67, NEMA4 and 6.The actuator is available with optional explosion proof enclosure.

 

Electric wrring of control circuit is standardized for single and three phase power supply in a single module. Multiple terminal contacts sufficiently cover additional requirements such as auxiliary contacrs for DCS, interlocking and other options.

 

Mechanical and electrical module can be separated easily to improve assembling, maintenance and alteraton of eletrical requirements. Actuator has enough internal space for optional accessories.

 

Size of handwheel is designed for safe and efficient emergency manual operation.

 

Hand / auto declutching lever for handwheel engagement. The power drive is automatically restored by motor start.

 

Base mounting is standard to ISO 5211. Drive bush is removable for machining to valve stem requirement. The actuator position on the valve can be selected for 4 positions by means of 4 bolt holes in the drive bush.

 

A space heater inside the actuator prevents condensation due to temperature and weather changes. Standard 200W heater keeps all electrical components in the actuator clean and dry.

 

The limit switch is acticated by means of a simple and yet reliable cam mechanism mounted and driven by the center column. The valve position can be accurately and easily set with the simple adjustable switch mechanism. The set position is permanent and is not affected by over-travel resulting form manual operation.

 

Cam activated torque switches are easily adjustable to provide over-load protection.

 

Rolled steel wormgear on aluminium bronze wormwheel self-locks to prevent valve back drive on control signal or power failure.

 
 
 
   
  Providing the dry contact signal to check valve's positions (cam switches structure).
   
  Providing the dry contact signal send to customer's panel as fault signal (cam switches structure).
 
  Combined with PIU and transfer output signal
(DC : 4~20mA) from PIU's value of resistance power : AC 110/220V10% 50/60Hz DC24V output signal : DC 4~20mA
 
 
 
Combined with PIU and control the valve's position proportionally by input signal and provide valve's position as their output signal.
 
Input signal : DC 4~20mA/DC 2~10V/DC 1~5V
Output signal : DC 4~20mA
Power : AC 110/220V10% 50/60Hz DC24V
Size : 120mm135mm
Operating temperature : -10~55
Resoluting : Min. 1/500
Operating Humidity :
  90% RH Max.(Non condensing)
 
 
Applicable Function
-
Auto Scan-Automatically memorized each open/close position by the signal of PIU.(It is very easey to set the PCU even in local area only requiring one push of the Auto Scan button)
-
Fail close-Drive to close position there is no certain input signal
-
Fail open-Drives to open position there is no certain input signal
-
Manual operation mode-Zero Null/Span Open
-
Operational Setting-It is possible to fix a certain signal as Open and Close.
-
Manual Operating-Locally move valve's position without source of signal by direct use of dip switch on PCU board
 
 

 

A small unit that is mounted to the actuator to operate the valve's position in local. Local/Remote switch Open/Stop/Close switches

 

 

 

Rugged structure with special parts (Explosion proof type Selector, pushbutton switches) Guarantees that watertight and safety working in hazardous environments.

   
   
 

Providing resistnace value (0~1K) according to valve's position.

 

   
 
 

 

 

Combined transformer with electric contactor
and directly provides various control voltages
to the Actuator(24VDC, 110VAC/220VAC) from
main power (380VAC/440VAC).

 
 
 
TYPE
Max Output Torque
Operating Time 60/50Hz
Max Stem Dia
Motor Class F
Rated Current (mA)
Number of Hand Wheel Turns
Weight (kg f)
1 Phase
3 Phase
Kg/m
90 Deg.
mm
W
110V
220V
380V
440V
NA06 6 14/17 22 15 750 450 130 125 8.5 11
NA09 9 14/17 22 25 1200 580 170 160 8.5 11
NA15 15 17/20 22 40 1600 950 300 300 10 12
NA19 19 17/20 22 40 1600 950 300 300 10 13
NA28 28 20/24 32 40 1800 950 330 340 12.5 17
NA38 38 20/24 32 60 2300 1300 360 340 12.5 18
NA50 50 20/24 32 90 3900 1500 560 570 12.5 19
NA60 60 24/29 42 90 3900 1500 560 570 14.5 22
NA80 80 24/29 42 180 4700 2150 840 780 14.5 23
NA100 100 24/29 42 180 4700 2150 840 780 14.5 25
NA150 150 72/87 75 90 3900 1500 560 570 43.5 68
NA200 200 72/87 75 180 4700 2150 840 780 43.5 70
NA250 250 72/87 75 180 4700 2150 840 780 43.5 70
 
 
 
STANDARD SPECIFICATION
Enclosure Watertight Ingress Protection 67 Nema 4 and 6
Ambient Temperature -20 to + 70, 150/1hr
Power Supply
(60/50 Hz)
110/220 VAC, 1Phase
380/440 VAC, 3Phase
Control Power 110/220 VAC, 1Phase, 60/50Hz
Torque Switches 2 Open/Close (Except NA 06, NA 09)
Limit Switches 2 Open/Close, 250 VAC 16A Rating
Stall Protection Bult-in Thermal Protection (Open 150ɡ5/Close 97ɡ15)
Travel Angle 905
Indicator Continuous Position Indicator
Manual Override Hand/Auto Declutching Mechanism
Self Locking Provided by means of Worm Gearing
Conduit Entries External Adjustable Screws
Space Heater 20W (110/220 VAC, 24 VDC)
Conduit Entries Two PF 3/4" (NPT 3/4")
Lubrication Grease Moly (EP Type)
Materials Steel, Aluminium Alloy, All Bronze
Surface Treatment Anodizing
External Coating Dry Power, Epoxy - Polyester, Polyester (TGIC-Free)
 
OPTIONAL SPECIFICATION
EXP Explosion Proof & Watertight Enclosure
Ex d IIB T4 IP 67, EExd IIB T4 (NEMKO)
DCM 24V DC MOTOR
ALS Additional
Auxiliary Limit Switches
EXT Travel Angle
120, 135, 180, 270, 300
LCU Local Control Unit
Local/Remote Selector Switch
Open/Stop/Close Selector Switch or Push button type
PIU Potentiomerter Unit 1K Ohm.
CPT Current Position Transmitter
Output : DC 4-20mA
PCU Proportional Control Unit
Power : AC 110/220V 1PH, DC 24V
Input : DC 4-20mA, DC 1-5V, DC 2-10V
Output : DC 4-20mA
IMS Integral Motor Starter
Reversing Magnet Contacts and Transformer
 
 
 
 
 
TYPE
NA06, NA09
NA15, NA19
NA28, NA38, NA50
NA60, NA80, NA100
NA150, NA200, NA250
Flange
ISO 5211
F07
-
F07
F10
F10
F12
F12
F14
F16
F14
A 70 70 102 125 165
A' - 102 125 140 *140
B M8 M8 M10 M12 M20
B' - M10 M12 M16 *M14 *M16
C 12 15 18 22 30
D(MAX) 22 22 32 42 75
E 55 57 75 85 100
F 43 43 52 59 126
G 2 2 2 2 7
H 231 261 285 325 325
I 56 77 83 99 99
J 175 184 202 226 226
K 60 60 70 78 78
L 213 213 250 283 283
M 273 273 320 361 361
N 102 120 145 175 266
O 68 85 99 116 116
P 113 139 159 191 191
Q 181 224 258 307 307
R 108 108 130 178 178
S 102 102 125 170 170
T         556
U         195
X         388
Y         16
Z         318
* : for optional alternative fkanges
 
 
 
 
Piping Pressure : 10kg/
TYPE BUTTERFLY
VALVE
2-WAY BALL
VALVE
3-WAY BALL
VALVE
NA06 80A 40A  
NA09 100A 50A 40A
NA15 125A 65A 50A
NA19 150A 80A 65A
NA28 200A 100A 80A
NA38 250A   100A
NA50   125A  
NA60 300A 150A 125A
NA80 350A   150A
NA100   200A  
NA150 400/450A    
NA200 500A 250A 200A
NA250 600A 300A 250A