Quarter Turn Electric Actuators

 
 
These actuators are most suitable for the actuation of quarter turn (90 Deg) / rotary valves like Ball Valves, Butterfly Valves or Plug Valves. They can be mounted directly on the valve shaft i.e. without the need of any intermediate gearbox. Being compact in size & weight, they are ideally suitable for the small size quarter turn valves. The main advantages of direct mounted quarter turn actuators are space & cost savings.

Torque Range : Min 0.2 Nm; Max 1000 Nm
Enclosure : Weather-proof & Explosion-proof
Power Supply : 115 VAC & 230 VAC-1Ph / 24 VDC / 415 VAC-3Ph
Closing Time : 6 Secs to 45 Secs
Duty : On-Off & Regulating
Special Feature :
1.
Fail-safe i.e. the valve can be driven to close or open position, in case of power supply failure.
2.
Smart / Intelligent Actuator Controls with Fieldbus Communication
 
Quarter Turn Electric Actuators
 
 
Quarter Turn Electric Actuators
   
   
 
   
   
Better Performance without Price Adder - New mechanical parts for the electrical quarter-turn actuators Series PSQ proven in the field for over eight years.
The optimization of gear and casing allows several improvements at the quarter turn actuators PSQ. Most sizes are giving a higher torque due to increased efficiency, and the change in geometry allows longer valve shafts to be accomodated. Cost of material and assembly have been improved to ensure a continuously competitive price level.
Customers using PSQ/PSR quarter turn actuators and PSL linear actuators do profit from the simplicity of the modular accessories in several ways, as fewer parts must be held in stock and the training requirements for the sales, service and assembly staff are reduced considerably.
Characteristics for a simple time-saving set-up and long and trouble-free operation which only PSQ actuators can offer in their class :
1. Robust, compact and light weight design due to the use of high-quality aluminium die cast material.
2. Synchronous or brake motors without over-run, for precise positioning and mode of operation S4-1200 c/h.
3. ISO 5211 connection to valve and exchangeable drive bush of sintered metal.
4. Easy-to-see mechanical position indicator, adjustable.
5. Covered stop screws, easily adjustable +/- 5°.
6. Electrical limit switches that are easily adjustable.
7. Simple, continuously adjustable torque limi ting of 50 - 100 % in open and close directions (PSQ102 and bigger).
8. Comfortable hand operation without clutching from motor operation to manual operation; the handwheel is motionless when the motor is in operation and is always ready for operation.
9. Additional position switches.
10. Additional torque switches.
11. Single or double potentiometer.
12. Space heater.
13. Electronic position transmitter.
14. Electronic positioner.

Technical Data :

.
.
PSQ 52
PSQ 67
PSQ 77
PSQ 102
PSQ 202
PSQ 502
PSQ 702
PSQ 1002
Switching torque1) clockwise
.
.
.
.
.
.
.
.
.
and anticlockwise rotation
Nm
50
65
75
130
250
500
700
1000
Connecting flange acc. to ISO 5211
.
F05/F07
F05/F07
F05/F07
F05/F07
F07/F10
F10/F12
F10/F12
F12/F14
Valve shaft diameter (max.)
mm
20
20
20
20
28
40
40
40
Valve shaft length (max.)
mm
45
45
45
45
60
80
80
80
Handwheel diameter
mm
125
125
125
125
200
250
250
300
No. of handwheel turns to close
.
18
18
18
18
18
18
18
18
Weight approx.
kg
7
7
7
7
13
27
27
27
Actuation time for 90° angle2)
s
22
32
60
83)
20
29
29
29
.
.
.
.
.
16
28
43
43
43
.
.
.
. .
32
69
93
93
93
.
.
.
.
.
57
.
.
.
.
Angle of rotation
0...90° +/- 5°
Motor voltages
24V / 115V / 230V / 400V 50/60Hz, 24VDC
Duty cycle as per IEC 60034-1,8
S2 or S4
Manual override
by handwheel
Enclosure acc. EN 60529
Standard IP67
Permitted ambient temperature
-20 bis +80°C, modulating duty up to +60°C
Position indicator
mechanically, adjustable
Mounting position
any position, exept cover pointing downwards
Gear case and cover material
high quality aluminium die
1) Torque available for full angle 2) Closing time for 60Hz less 20% 3) Output not 100% selflocking.
PS Actuators have proven for more than 15 years in industry and ships, in water and sewage technology, in heating and air conditioning, in power station and boiler house plants.
They are especially renowned for their functional conception without unnecessary features that may be prone to failure, and for a precise positioning or controlling and long trouble-free operation.
Modular accessories, easy retrofitting even on site
 
   
   
Compact Electrical Control Actuator PSR  
   
   
The quarter-turn actuator series PSR is the economical addition to the proven actuator series PSQ for torque requirements 15 Nm to 45 Nm, directly mounted as per ISO 5211. PSR series is containing a maintenance-free, low-wear and low-noise spur gear resulting in high efficiency and long lifetime. PSR with stroking time 30 sec are most suitable for control duty due the use of to synchronous motors without after-run.
Customers who use the PSQ quarter-turn and PSL linear actuators profit from a standardisation of the modular accessories in several ways, as fewer parts must be held in stock and the training requirements for the sales, service and assembly staff are reduced considerably.
Characteristics of our economical solution for automation of small valves:
PSR-actuators with reliable components from PSQ and PSL
1. Tough, compact yet light-weighted design due to highquality aluminium body and UV-resistant polycarbonate cover.
2. Synchronous or brake motors without over-run, for precise positioning and mode of operation S4-1200 c/h.
3. ISO 5211 connection to valve and exchangeable drive bush of non-corrosive steel.
4. Easily visible mechanical position indicator.
5. Rotation angle 0-90°, one limit adjustable +/- 5°.
6. Electrical limit switches that are easily adjustable.
7. Indication of operating direction at hand wheel.
8. Manual operation possible without declutching of motor.
9. Additional position switches.
10. Single or double potentiometer.
11. Space heater.
12. Electronic position transmitter.
13. Electronic positioner.
Technical Data :
.
.
PSR15
PSR25
PSR45
PSR45
Switching torque1) clockwise
.
.
.
.
.
and anticlockwise rotation
Nm
15
25
45
45
Mounting flange acc. to ISO 5211
mm
F05/F07
F05/F07
F05/F07
F05/F07
Valve shaft diameter (max.)
mm
18
18
18
18
Valve shaft length (max.)
mm
25
25
25
25
Diameter of handwheel
mm
59
59
78
78
No. of handwheel turns to close
4
4
4
4
Weight approx.
kg
3,5
4
45
4,5
OPerating time for 90° angle2)
s
5
12
5
12
.
.
12
30
40
Angle of rotation
0...90° +/- 5°
Motor voltages
24V / 115V / 230V / 400V 50/60Hz, 24VDC
Duty cycle as per IEC 60034-1,8
S2 or S4
Manual override
Handwheel
Enclosure acc. EN 60529
Standard IP65
Permitted ambient temperature
-20 to +80°C, modulating duty up to +60°C
Position indication
mechanically
Mounting position
any position, exept cover pointing downwards
Gear case
high quality aluminium die
cover material
high quality polycarbonate, UV resistant, self extingguished
Compact Electrical Control Actuator PSR
Compact Electrical Control Actuator PSR