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Home > Actuators > Electric Actuator (Rotary) > KN 1.8 |
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Avcon Electric Actuators
Type KN-1.8
For Low Leakage Butterfly Valves And Dampers
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DATA SHEET
KN-1.8 |
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| DESCRIPTION : |
Type KN 1.8 is a reversible, TWO POSITION actuator, used
for operating Damper/Valves in Electric or Electronic
modulating circuits.
Following models are available: |
1) KN-1.8/D :
Reversible motor, available with travel
limit switches at each end of travel. Cams can be adjusted
suitable for angle of rotation from 0° to 180°. |
2) KN-1.8/E :
Basically available in one fixed angle
of rotation 90° with individual potentiometer of fixed range of
500 or 135 ohms. |
3) KN-1.8/EIZC :
All the features of 'E' Motor, a vailable
in angle of rotation 90°, plus electronic error balancing
bridge, to position the motor, in accordance with the signal
received from (Series 90) Thermostat or Controller slidewire
(135 ohms only). |
4) KN-1.8/E/MA :
This actuator incorporates all the
facilities of 'E' motor plus detached interfacing card to accept
signal of 4 to 20 mA and position the actuator in accordance
with the signal received. |
5) KN-1.8/EN :
The actuator incorporates all features
of KN-1.8/E plus Interface Card to accept 0(2) to 1O VDC
signal and position the actuator in accordance with the
signal received. |
6) KN-1.8/E/MA/RPT :
The actuator incorporates all the
features of KN-1.8/E/MA, plus output card to offer 4 to 20mA
signal for either remote position indication or giving signal to
another KN-1.8/E/MA actuator to position simultaneously in
accordance with signal received. |
7) KN-1.8/E/RPT :
All the features available with KN-
1.8/E actuator, in addition 4 to 20mA output card for remote
position indicator or salving other actuator. |
8) KN-1.8/E/MA512AN :
All the features of KN-1.8/E, plus a
box containing 4 to 20mA interface card, in addition 3.1/2
digit LED indication, to indicate percentage of actuator travel
(valve opening/closing). Box has a facility for manual, as
well as auto switching. The manual facility is to adjust the
actuator manually, with the help of Push Button Station,
provider in the box. for manual, as well as auto switching. The manual facility is to adjust the actuator manually, with the help of Push Button Station, provided in the box. |
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| SPECIFICATIONS : |
| Electric consumption |
10 watts |
| Dead weight load on |
Power end 90 Kgs max (200 Ibs)
shaft Auxiliary end-45kgs
(100Ibs) max. |
| Ambient temperature |
50°C, min. -20°C |
| Crank shaft |
Double ended, 3/8" (9.5mm)
square |
| Dimensions |
See Fig.1. |
| Torque |
Running torque1.8 Nm
(150lbs inch).
Break-away
torque: 34 Nm (300lbs inch)
(Breakaway torque is the max
torque to overcome occasional
large load such as a seized
damper or valve)
DO NOT
OPERATE ACTUATOR AT
BREAKAWAY TORQUE. |
| Weight |
4 Kgs. |
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| ACCESSORIES AVAILABLE |
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1. Crank Assembly, Type C-9020.
2. Damper Linkage, Type CD-9022.
3. Crank fitted with ball joints and rod.
4. Valve mounting brackets for various sizes of valves.
5. Auxiliary potentiometer(to be factory assembled on
KN-1.8/D motor) |
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| FEATURES |
| Actuators are suitable for 230 Volts, 50/60 C/s. AC Supply,
as a standard. Also available suitable for 24 V/11O V 50/60
C/s. AC. Supply. Die Cast Aluminium Case, low inertia, high
resistence rotor, provided with self brake. Oil filled self
lubricating gearing, rated for ambient temperature from
20°C to 50°C. Interchangeable with other imported
proportioning motor, using existing accessories. |
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| DIMENSIONS DETAILS |
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ACCESSORIES : |
LIMIT SWITCHES (L2) :
Valve Actuator type KN-05/ KN-10, can be made available with additional pair of Limit Switches, having
1 NO & 1 NC Potential free contact but duly wired. |
INTERFACING UNIT (mA) :
Actuators are originally fitted with 500 ohms potentiometer (L1), can be further connected with mA
interface, to receive signal of 4 to 20 mA from external PID controller and adjust the valve accordingly,
This is also available with 3.1/2 digit DPM (Digital Panel Meter) to indicate the percentage of valve
opening. |
REMOTE POSITION TRANSMITTER (PTR) :
The Valve Actuator original fitted with 500 ohms independent potentiometer (L1), can be fitted with
Remote Position Transmitter, giving output of 4 to 20 mA. Also available with 3.1/2 digit DPM to
indicate percentage of opening of valve, with this single slide wire mA card cannot be used. |
INTERFACING UNIT (mA) WITH REMOTE POSITION TRANSMETTER (PTR) :
Valve Actuator originally fitted with Two 500 ohms potentiometer (L1 & L2) can be used with mA card to
position the valve according to controller requirements and give a remote position transmission of 4 to
20 mA, Both are supplied as an independent unit. |
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| Note: |
Technical specifications details & dimensions are subject to change without prior notice.
Dimensions in the table are approximate subject to final confirmation by AVCON. |
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