Rotork AB550M gearbox for quarter-turn applications

The AB550M gearbox is designed for use with motorised quarter-turn valves and dampers. It is manufactured with cast iron housing components, high-performance axial thrust bearings, a protected steel input shaft and a polyurethane coating to deal with arduous applications and aggressive environments.

The ability to support electric actuators weighing up to 46 kg and input speeds of up to 72 rpm offers suitability for many applications in the chemical, power generation, water and sewage treatment, HVAC and general industries. With a maximum output torque of 600 Nm, 45 mm maximum output bore, output flange sizes from F07 to F16 and ±5° adjustable 90° stroke, the product will operate a large range of ball, butterfly and plug valves, or power and process dampers.   

The ambient operating temperature range can extend from -60°C to +200°C, whilst the standard IP67 environmental protection can be increased to IP68 for marine, continuous submersion and buried service duties. A fire-safe option conforming to ISO10497 is also available.