Optional features for Rotork AB-M-Quarter-Turn Motorised AB gearbox
Stainless steel input shaft
Ductile Iron Gearcase
IP68 ingress protection class
Design for low/high temperature applications
Limit switch boxes for remote indication
Special coating protection for buried designs
Features:
- Torque range up to 2,000 Nm (1,475 lbf.ft)
- 4 sizes
- Ratios 34:1 to 200.7:1
- Input: F/FA10
- Ductile iron housing
- C45 carbon steel input shaft
- Output: F/FA07, F/FA10, F/FA12, F/FA14, F/FA16
- Rugged construction
- Axial thrust bearings
- Stroke: 0 - 90° (± 5° adjustable)
- Removable insert
- ATEX approved
- Standard duty IP67
- Standard temperature -20 to +120 °C (-4 to +250°F)
Options:
- High Temperature to +200 °C (392°F)
- Low Temperature to -60 °C (-76°F)
- Firesafe to ISO 10497
- IP68 marinised and buried service
Main technical features:
Four sizes are available by 720 - 2 000 Nm (6 373-17 702 lbf in) output torques
Ambient temperature: -20 .. + 120 °C (standard)
Sizes: AB550M - AB1250M/ PR4 (detailed in manufcaturer brochure)
Ratios: 34 : 1 - 200,7 : 1
Input shaft connection sizes: F10 ( acc.to ISO 5211)
ISO flange connection to valves:
AB550M - F07-F14 között (ISO 5211)/ F16
AB880M - F10 - F16
AB1250M - F10 - F16
AB1250M/ PR4 - F10 - F16
Main classes of each application:
AB-N standard design by IP67 protection
AB-W - suitable design at marine and onshore/ offshore application
AB-G (IP68) - special coating included for buried service
Valve shaft connection choices:
by insert ring to accept valve shaft (bore + keyway ready for bore shaft + standard key)
Flat Head stem connection
Square stem
Must be added at ordering stage:
Input Shaft - Left Hand -Right in/out (LH-A2) - standard choice
Options: B1; A1; B2 - are available - input shaft projection and rotations are stated in related catalouges
Keyway in closed position (bore+keyway design)
Square stem - flats on center (paralell by each axis)/ flats off center (45° angular connection to each axis)
Optional design solutions:
High temperature application up to +200 °C
Low temperature application down to : -60 °C
Fire Safe design acc. to ISO 10497 regulations
