The Bray FTG Series manual gear operator features an ISO5211 mounting interface and an output torque range of 500 to 8,000 Nm for precise manual valve control. Its ductile iron housing with weather-resistant sealing, aluminum bronze sector gear, and steel worm input shaft provide self-locking operation and adjustable travel stops. Suitable for valve operation and position adjustment in demanding industrial environments and outdoor exposure areas.
FTG Series manual gear operator product image
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Bray FTG Series Manual Gear Operator
Ductile iron manual gear operator with locking capability.
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After-sales support
After-sales communication support is provided according to the order agreement.
Specifications
- Output torque
- 4,425 to 70,805 lb-in (500 to 8,000 Nm)
- Power source
- Manual
- Housing material
- Ductile iron
- Sector gear material
- Aluminum bronze
- Worm input shaft
- Steel, with tapered roller bearings at both ends
- Mounting interface standard
- ISO 5211
- Self-locking function
- Yes
- Adjustable travel stops
- Yes
- Sealing type
- Weather-resistant sealing
- Position indicator
- Corrosion-resistant valve position indicator
Application scenarios
Precise Manual Valve Control in Harsh Industrial Environments
The FTG series can be fitted to valves via ISO5211 mounting interfaces and provides 500 to 8000 Nm of output torque as a manual gear operator. Its self-locking function holds the valve in any position, while adjustable travel stops enable precise adjustment of the open and closed positions.
Manual Valve Operation in Outdoor or Environmentally Exposed Areas
The FTG series is suitable for outdoor or weather-exposed areas in demanding industrial applications. Its weatherproof sealed enclosure isolates internal components from the atmosphere, and the corrosion-resistant valve position indicator allows easy viewing of valve position.
Selection points
Heavy-Duty Gear Drive Design
Features a ductile iron housing, aluminum-bronze sector gear, and steel worm input shaft. Tapered roller bearings are fitted at both ends of the worm input shaft.
Self-Locking with Valve Position Holding
All FTG Series operators are self-locking and can be secured in any position.
Adjustable Travel Stops
Adjustable travel stops enable precise adjustment at the open and closed positions.
Weatherproof Sealed Housing
The housing features a weatherproof sealed design that isolates internal components from the ambient environment.
ISO 5211 Standard Mounting Interface
All FTG Series operators are drilled and tapped to ISO 5211 mounting dimensions.
Installation & maintenance notes
Align Installation with the ISO 5211 Mounting Interface
FTG Series operators use ISO 5211 mounting dimensions. When mounting to a valve, ensure that the operator is correctly aligned and securely fastened to the valve mounting interface to prevent misalignment from affecting transmission performance and valve position.
Adjust the Travel Stops According to the Actual Valve Open and Closed Positions
During installation and commissioning, adjust the operator's travel stops according to the valve's actual fully open and fully closed positions to achieve precise open and closed position adjustment.
FAQ
How does the FTG Series manual gear operator work?
The FTG Series uses a manually operated input shaft to drive a worm gear transmission, converting rotary motion into linear valve opening and closing control. Adjustable travel stops ensure precise positioning at the open and closed positions.
Which key parameters should be considered when selecting an FTG Series operator?
Key considerations include the output torque range (4,425 to 70,805 lb-in / 500 to 8,000 Nm), manual operation as the power source, and whether options such as corrosion-resistant coating, a valve position indicator, and a self-locking function are required.
What are the key installation and positioning considerations for the FTG Series?
All models are drilled and tapped according to ISO5211 mounting dimensions. The sealed housing provides weather resistance, the valve position indicator is easy to view, and the self-locking function holds the valve in any position.
What technical advantages are provided by the FTG Series structural design?
The ductile iron housing, aluminum bronze sector gear, and steel worm input shaft with tapered roller bearings at both ends provide high strength and long-term reliability under demanding operating conditions.
How can precise valve control and maintenance be achieved in field applications?
Adjustable travel stops provide precise positioning during opening and closing. Regularly inspect the self-locking function, valve position indicator, and sealing components to ensure reliable, trouble-free operation over extended periods.