Stainless Steel Gearbox for Brandoni Type Butterfly Valves mounted on a quarter-turn actuator with a durable wheel.

This precision-engineered stainless steel gearbox for butterfly valves is designed specifically for quarter-turn operation and is fully compatible with the Brandoni actuator series. Built to deliver reliable manual actuation with the highest levels of durability and serviceability, this gearbox offers smooth operation and a robust housing for plantroom installations, aggressive environments, and future automation requirements.

  • Full Stainless Construction: Manufactured from 304/316 stainless steel to provide excellent corrosion resistance in coastal, industrial, or aggressive plantroom environments.
  • Retrofit-Ready Interface: Designed to bolt directly onto the standard drive pad of Brandoni-type butterfly valves for seamless installation without valve body modification.
  • Mechanical Advantage: A typical 20:1 gearbox ratio enables manageable manual operation for valves with torque ratings up to ~500Nm.
  • Precision Control: Features a 0°–90° travel range with adjustable stops for open and closed positions to ensure accurate flow indication.
  • Locking Capability: Includes an optional padlock eye for secure locking in open or closed positions during maintenance or normal service.
  • Service-Friendly Design: Equipped with grease ports and service access points to reduce friction and support a high cycle count of up to 100,000 cycles.
  • Future-Proof: While designed for manual handwheel or stub-lever operation, the housing is prepared for future electric or pneumatic actuator conversion.

Ideal for mechanical plant rooms, water treatment facilities, and HVAC systems, this gearbox provides a corrosion-resistant and reliable interface for large butterfly valves where standard lever operation is impractical. It ensures long-term performance and improved mechanical control for both new installations and retrofit projects.

Housing Material 304/316 stainless steel
Torque Output Up to ~500Nm
Gear Ratio 20:1 typical
Operating Angle 0°–90° (adjustable)
Ambient Temperature Range -10°C to +60°C
Shaft & Output Material Stainless steel drive shaft with bronze or hardened steel worm gear
Compatible Sizes DN50 (2") up to DN300 (12")
Service Lifespan Rated for 100,000 cycles

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Total price£513.87

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