Part-Turn Introduction
The Ontrac Multitrac electric actuator is a sophisticated yet simple and robust multi-turn actuator offering (S4) modulating and (S2) on/off control.
Utilizing our modular design and with the addition of an Ontrac ASNG gearbox a Part-Turn option with a torque range of 200 to 135,000 Nm can be produced.
This provides an extensive range of valve control capabilities.
Full details of the Torque and Speed outputs can be found here
Part-Turn Gearbox
Ontrac ASNG series Part-Turn Gearbox is a precision device rotary with high quality and safety. It’s purpose is to reduce the speed and increase the torque. It is easy to process axis hole and key groove because of the removable sleeve.
Characters
- Totally enclosed gearing
- Ductile cast iron housing
- Grease filled increase service life
- Comprehensive gear ratios for different applications
- Removable output sleeve
- Optional travelling sleeve
- Adjustable stopper (± 5°)
- Optional flange to suit for different type of valves
- Sealed structure with good waterproof performance
Application
ASNG series part-turn gearboxes are used for motorized (electric actuator) applications of ball valve, butterfly valve, plug valves, dampers and other 90° rotary (quarter-turn) valves.
Options
- lP68
- Stage Reducer
- Stopper
- Lockable handwheel
- Working temperature -40°C to 120°C
- Radial arm
- Travelling nut
- Input flanges suit for electric actuator
- Output flange
- Painting color
Operating Environment
ASNG Part-Turn Gearboxes are high mechanical quality and under arduous climate and temperature provide steady operating performance.
Factory Standard:
- Enclosure: IP67
- Working Temperature: From -20°C to 60°C (-4°F to 140°F)
- Painting: Black RAL9005
Connect With Valve
The flange connecting to valve is according to ENISO5211
Part-Turn Introduction
The Ontrac Multitrac electric actuator is a sophisticated yet simple and robust multi-turn actuator offering (S4) modulating and (S2) on/off control.
Utilizing our modular design and with the addition of an Ontrac ASNG gearbox a Part-Turn option with a torque range of 200 to 135,000 Nm can be produced.
With the addition of an Ontrac lever arm we can provide Damper (link) control for a wide variety of air applications. This provides an extensive range of damper control capabilities.
Full details of the Torque and Speed outputs can be found here
Main Components
- Robust housing made of cast iron, optionally spheroidal graphite iron
- Roller bearing supported worm shaft made of alloyed casehardening steel
- Worm wheel made of special bronze alloy
Technical Features
- Optionally for direct installation or for foot and lever
- Self locking gearing
- Limiter for operating angle
- Mechanical position indicator
- Output via lock bush
- For Ontrac multi-turn actuators MME 800
(data sheet 10/78-1.02 EN)
Application
- The worm gearing is used to increase the output torque and to reduce the output speed. It is preferably used for final control elements which require a pure swiveling movement such as flaps, cocks, etc.
- Additional spur wheel gears or planet gears, mounted between actuator and worm gearing, can increase the transmission ratio. Various output types such as bore with key groove, double- or multi groove profile are available for direct installation or installation with foot and lever. These options guarantees an easy adaptation to various valve types.