QT Series

Quarter Turn Worm Gearbox – The ‘Katwe QT’ series quarter-turn worm gearboxes are high-performance units designed for manual operation of butterfly, ball, plug valves, and dampers.

Range: 250 Nm to 25000 Nm

Product Gallery

Standard QT Series

QT Series with Sub-Gearbox

QT Series with Pad Lock & Limit Switch Mounting

QT Series with Pad Lock

Key Features

  • Graded CI housing & cover
  • High performance thrust bearing
  • Alloy steel-worm & input shaft
  • Powder coated hand wheel for easy and smooth operation
  • Temperature range -30°C to +160°C
  • Light weight with rugged design
  • Environmentally friendly high-performance grease
  • Ingress Protection Rating – IP67 certified gearboxes
  • Standard version: Clockwise input = Clock wise output to close
  • Gear Box mounting as per ISO 5211 standard
  • Black epoxy paint

Optional Features

  • Materials: Housing, cover and worm wheel material also available in SG Iron, Stainless Steel and Aluminum Bronze material
  • Hardware: Stainless Steel fasteners and handwheel
  • Finish: Grease nipple, Padlock arrangement, Powder coating
  • Accessories: Limit switch arrangement/ mounting, Chain pulley

Quality Assurance & Testing

Torque Measurement

Test Rig to measure the output torque
250 Nm to 25,000 Nm
184.4 lb-ft to 18,439 lb-ft

Reliability Testing

Test rig for cyclic test to measure number of cycles and reliability of gearbox

DFT Meter

DFT Meter to check the thickness of the paint

Hardness Testing

Hardness testing machine to check the hardness of components of gearbox