Actol Electric Quarter-turn Valve Actuators SMART VALVE CONTROLS MANUFACTURERS OF ELECTRIC ACTUATORS STEAM & CONTROL SYSTEM SPECIALISTS Made in the UK
Smart Valve Controls Limited have applied over twenty years experience in the valve actuator business to the design of their range of electric quarter-turn actuators. These actuators contain unique features which make them the ideal choice for the operation of ball, butterfly and plug valves. All models are of a simple design, providing a faster operating speed than most electric quarter-turn actuators on the market. Special features include: Unique simple gear train design Geared Manual Drive Positive mechanical end stops Single phase three wire connection 58 57 56 55 54 53 52 51 50 49 48 Actol actuator Competitor Time 5 10 15 20 25 (mins.) First movement of valve Actol actuator on diesel engine cooling water temperature control test. The graph shows how the gear train design of the Actol actuator produces a quicker response to changes in the cooling water temperature, resulting in far better temperature control than could be achieved by the competitor's actuator. SMART VALVE CONTROLS MANUFACTURERS OF ELECTRIC ACTUATORS STEAM & CONTROL SYSTEM SPECIALISTS Permanently lubricated and lightweight, the actuators are deigned for maintenance-free operation under a wide range of arduous service conditions. In addition to isolating duties, the actuator design facilitates its use for certain control and regulating valve applications. The combination of all these features provides a comprehensive specification at a competitive price.
These are the features which make the Actol actuator the first choice for electrical operation of quarter-turn valves. Nine model sizes providing a broad torque output range. Output Torque Operating Time (Secs) lb in Standard Optional 80 8-120 or 200 2 1 325 or 500 4.5 2.25 900 or 1200 8 16 1600 11 22 3000 26 52 Figures quotes for 50Hz electrical supplies Single phase induction motors with thermal overload protection and low current consumption as standard. 3 phase and DC motors optionally available. De-energise when stationary. Rugged, permanently lubricated and non-reversible gears with positive internal mechanical end stops for accurate valve positioning. Stainless steel male output shaft for ease of adaptation to valve. Internal, independently adjustable limit switches for system simplification and flexibility. Sturdy aluminium enclosure, captive rubber ring sealed providing IP66 protection as standard.
Principle of Operation Sizes 120 to 1600 Operation The motor drives through the face worm and wheel pair and spur gears, producing quarter-turn rotation of the output shaft. Valve position indicator Switches & Cams Hand operating shaft drive Clutch Face worm & Wheel Spur gears Output to valve Hand Operation A clutch mechanism on the hand operation shaft facilitates manual operation of the spur gears, bypassing the face worm and wheel pair and motor. Schematics represent internal general arrangement of 325/500 size actuators
Components & Features Switches Two independently adjustable V3 limit switches are fitted as standard, operating on cams for precise setting. Up to four extra switches may be fitted as an option. Single phase reversible induction motors used throughout the range are chosen to provide minimum power consumption but high torque output. Standard insulation is Class B and all motors will sustain a rigorous duty cycle. 3 Phase and DC motors optionally available. Hand Operation Hand Operation can be achieved by using a wrench on the hand operating knob provided. A handwheel is provided as standard on the 3000 model only, which is fitted with a hand/auto clutch which automatically re-engages the motor when the actuator is engaged Position indicator A clearly visible semaphore-type local position indicator is provided on all units. Enclosure The standard enclosure conforms to IP66 with the aluminium housing cover sealed by means of a captive rubber seal. In addition, lip seals are used on stainless steel output shafts to minimise humidity and corrosion problems. Gear Train The non-reversible gear train eliminates the possibility of valve position 'drift' when the actuator is de-energised, removing the need for an expensive brake when operating butterfly valves. An extensively tested design utilising modern spiral technology face worms and wheels combined with spur gears provides a long and hard working service life. The combination of these gears produces a more direct drive than most other actuators, and being permanently lubricated, requires no maintenance. End Stops Precisely adjustable end stops are fitted as standard to facilitate accurate valve positioning at end of stroke. This is particularly useful for valves not fitted with internal stops. Internal general arrangement of 120 size acuator Cable termination A 20mm threaded cable entry is provided as standard, with provision for one optional additional cable entry if required. Customers' cables are terminated at a clamp type terminal block, number identified. All internal cable is tropical grade PVC coated as standard. Temperature range Actuators are designed to operate in an O ambient temperature range of -30 C to O + 70 C
Wiring Diagrams (Circuits shown for valve in shut position) Actuator Type 80 DC Supply DC Open limit switch Close limit switch 1 2 Actuator Types 120 to 3000 Single phase AC Supply Standard Equipment OLS - Open limit switch CLS - Close limit switch Adjustable cam operated at ends of travel 1 2 3 Note A deadband of at least 1/2 second must be allowed between reverse switching operations. with Thermostat E Earth Optional Equipment s (all actuators) 12 & 24V dc Three phase: 415V - 3ph - 50Hz as standard 4-20mA Transmitter AC Supply DC Open limit switch 1 *DC supply to terminals 1 & 2 via switch 1 Capacitor 2 OLS CLS 1 Line (Open) 2 Line (Close) 3 Neutral For remote indication or to provide an interface for external positioner. Battery Pack 2 3 Optional extras Auxiliary switches Close limit switch DC Output AC Input 3 4 5 6 Optional extras Auxiliary switches AS1 AS2 Cam operated to open or close at any point throughout travel Reversible at switch 4 5 6 7 AS1 AS2 7 8 9 10 AS3 AS4 8 9 10 11 Designed to utilise a.c. mains supply to operate d.c. actuator, facilitating failsafe multi-operation during a.c. power failure, thus enabling plant processes to be maintained. Position feedback potentionmeter Open Shut 11 12 Position feedback potentionmeter NB.AS4 not available with pot Open Shut 10 11 Electronic Positioner Allows the valve to be positioned in proportion to a current, resistance or voltage input signal. Heater 13 14 15 Heater NB. AS3 not available with heater 12 8 9 Interruptor Timer Can be used in one or both directions to increase the operating time. Supplied in a separate enclosure. Remote Control Station Performance Guide ActuatorType 80 120 200 325 500 900 1200 1600 3000 Output Nm 9 13.5 22.5 37 56 100 135 180 340 torque Ibin 80 120 200 325 500 900 1200 1600 3000 Approx. Kg 2.25 6 6 7.5 7.5 10 10 10 18 Weights lbs 5 13 13 17 17 22 22 22 40 Stall Amps currents for 240V 0.2 0.9 0.9 0.9 0.9 1.7 1.7 1.7 1.7 50Hz Thermal duty cycle O All actuators 30%at 20 C ambient Provides remote operation of actuator with optional continuous indication or lamps.
Dimensions Actuator size 80 120/200 325/500 Size 80, 120, 200, 325, 500 A B 4 mtg holes M x N deep straddle c/l on P p.c.d. (H) S (A/F) D Hand operation & indication Hand operation only (325-500) Indication (325-500) Stops (120-500) Stops internal on size 80 O L K 1 (optionally 2) Conduit entries M20 x 1.5p C E OG F A mm 157 179 202 ins 6.2 7.0 8 B mm 160 220 233 ins 6.3 8.7 9.2 C mm 110 153 157 ins 4.3 6. 6.2 D mm 54 53 66 ins 2.1 2.1 2.6 E mm 52 58 38 ins 2.0 2.3 1.5 F mm 12 20 20 ins 0.5 0.8 0.8 GØ mm 11.95/12.00 14.95/15.00 19.95/20.00 ins.4705/.4724.5886/.5905.7854/.7874 (H) mm 50 52 84 ins 1.9 2. 3.3 J mm 82 84 116 ins 3.2 3.3 4.6 K mm 33 62 83 ins 1.3 2.4 3.3 LØ mm 50 68 76 ins 1.9 2.7 3.0 MØ mm M5 M6 M8 ins --- --- --- N mm 10 12 15 ins 0.4 0.5 0.6 P mm 40 48 60 ins 1.6 1.9 2.4 S(A/Flats) mm 8.00/8.10 9.00/9.10 15.80/15.90 ins.315/.319.354/.358.622/.626 J Size 900, 1200, 1600 Size 3000 Handwheel Ø200 (8") 216 8.5" (75) 2.9" 43 1.7" Hand operation Indication 267 10.5" 247 9.7" Indication 300 11.8" Hand operation 107 4.2" Stops 250 9.8" 30 1.2" 323 12.7" 25 1" 024.95/25.00 (0.982"/0.984") 108 4.25" 16.00/16.10 A/F (0.630"/0.634") 1 (optionally 2) Conduit entries M20 x 1.5p 148 5.8" 029.95/30.00 (1.179"/1.181") 124 4.9" Stops 18.00/18.10 A/F (0.709"/0.712") 229 9.0" 1 (optionally 2) Conduit entries M20 x 1.5p 55 2.2" 4 mtg holes M8 x 19.0(3/4") deep Straddle c/l on 90.5 (3.56") p.c.d. 0120 04.7" 0110 4.33" 4 mtg holes M8 x 19.0(3/4") deep Straddle c/l on 96.0 (3.78") p.c.d. (152) 6.0" (184) 7.2" 75 3.0"
Valve & Actuator Packaging Service Actol actuators can be supplied separately or on valves either free issued to Smart Valves or bought by Smart Valves on customers' behalf. The company's traditional and major activity involves the design, manufacture and marketing of quarter-turn valve actuators, but our experienced personnel have the potential to provide effective solutions to actuation problems not catered for by standard products. Enquiries concerning all forms of actuation and control requirements are therefore welcomed. As we are continually developing our products the design of Actol actuators is subject to change without prior notice. Smart Valve Controls Limited Upper Lambridge Street, Larkhall, Bath BA1 6RY T: 01225 428891 F: 01225 336859