Udor KAPPA 55 VAGR3/4 — 15 GPM (57 L/min) Diaphragm Pump

For smaller engines than the VAGR1 version, the KAPPA 55 VAGR3/4 fits a 3/4 inch gear reduction drive for a 4–6.5 HP petrol engine onto the same KAPPA 55 pump body. It still delivers the full 57.0 L/min (15.0 GPM) flow at up to 38 bar (560 PSI), so buyers get identical pump performance with a lighter, more affordable engine option. The reduction gearing keeps the pump running at its correct 550 RPM regardless of the engine’s own speed.

Specifications

Model	Udor KAPPA 55 VAGR3/4
Flow Rate	57 L/min (15 GPM)
Max Pressure	38 bar (560 PSI)
Speed	550 RPM
Drive Configuration	Gear reduction for 3/4″ shaft petrol engine, 4-6.5 HP
Type	Diaphragm Pump

Applications

• Compact petrol-powered orchard sprayers
• Vineyard spraying with smaller engines
• Portable high-flow spray carts
• Contractor rigs on a budget
• Upgrading from a smaller GR3/4 KAPPA pump

Key Features

• Gear reduction for 3/4 inch petrol engine shaft, 4–6.5 HP
• 550 RPM operating speed regardless of engine speed
• 38 bar (560 PSI) maximum pressure
• 57.0 L/min (15.0 GPM) flow
• Desmopan diaphragm, anodised aluminium body

Technical Documents

• Udor KAPPA 55 VAGR3/4 Parts Schematic (PDF)
• All Udor Kappa Series Documents

Parts & Service

AES Waterblasters carries genuine Udor spare parts, diaphragm kits and valve kits for the Kappa series, with expert service and repairs from our Auckland workshop. Contact us on 09 271 4782 for parts, servicing or advice on the right pump for your application.

Related Models

Part of the Udor Kappa Series. Other models in this series:

• Udor KAPPA 7 12-Volt — 7.6 L/min (2 GPM)
• Udor KAPPA 15 12-Volt — 13.3 L/min (3.5 GPM)
• Udor KAPPA 15 GR3/4 — 13.3 L/min (3.5 GPM)
• Udor KAPPA 18 DC — 16 L/min (4.2 GPM)
• Udor KAPPA 32 — 36 L/min (9.5 GPM)
• Udor KAPPA 43 GR3/4 — 40 L/min (10.5 GPM)