Udor AL 3.5/30 W — 3.5 GPM (13.2 L/min) Triplex Plunger Pump

The Udor AL 3.5/30 W is a 3.5 GPM (13.2 L/min) triplex plunger pump rated to 2900 PSI (200 bar) at 3400 RPM, built for direct mounting to a petrol or diesel engine via a 1″ hollow shaft and SAE J609-B flange. The “W” suffix designates the gas-engine flange variant, allowing the pump to bolt straight onto a single-cylinder engine of around 9 HP for fully self-contained, mobile pressure-cleaning, agricultural spraying and fire-fighting setups where mains power is unavailable. With a brass manifold, heat-treated crankshaft, stainless steel piston guides, solid ceramic plungers and stainless steel check valves, the AL 3.5/30 W is engineered for long service life under heavy-duty use. AES Waterblasters is New Zealand’s authorised distributor for Udor Pumps, with full spare parts and service support available from our Auckland facility.

Specifications

Model	AL 3.5/30 W
Flow Rate	3.5 GPM / 13.2 L/min
Max Pressure	2900 PSI / 200 bar
Speed	3400 RPM
Power	9 HP (6.7 kW)
Weight	7.0 kg (15.4 lbs)
Plunger Diameter	15 mm
Crankshaft Stroke	9.0 mm (Code M)
Inlet Port	1/2″ BSP-F
Outlet Port	3/8″ BSP-F
Shaft	1″ Hollow Shaft, SAE J609-B Flange and Set Screw
Drive Type	Direct Drive, Gas Engine Flange
Oil Capacity	11.5 oz (340 ml) Vented Oil Bath Crankcase
Max Fluid Temperature	71°C (160°F)
Type	Triplex Plunger
Seal Kit	6061.07
Valve Kit	6061.02

Applications

• Engine-driven pressure washing and mobile cleaning rigs
• Agricultural and horticultural spraying
• Vehicle and fleet wash systems
• Fire-fighting pumps and bushfire skid units
• Remote site, off-grid and contractor applications

Key Features

• 1″ hollow shaft with SAE J609-B flange and set screw, ready for direct coupling to a petrol or diesel engine of ~9 HP
• Brass manifold for corrosion resistance and durability
• Heat-treated crankshaft and high-strength aluminium alloy connecting rods
• Stainless steel piston guides and stainless steel check valves
• Solid ceramic plungers for superior wear resistance
• Heavy-duty flat-base high-pressure seals
• 11.5 oz vented oil-bath crankcase with industrial-quality bearings
• Maximum fluid temperature 71°C (160°F)
• Left-hand drive option available: add “L” to the model when ordering

Technical Documents

• Udor AL 3.5/30 W: UdorUSA Datasheet & Parts Schematic (PDF)
• Udor AL 3.5/30 W: Master Parts Diagram (PDF)

Parts & Service

AES Waterblasters carries a comprehensive range of genuine Udor spare parts, including the matching Seal Kit (6061.07) and Valve Kit (6061.02) for the AL 3.5/30 W. Contact us on 09 271 4782 or visit our Auckland workshop for parts enquiries, repairs and pump rebuilds.

Related Models

Other models in the Udor A Series:

• Udor AL 3.0/30 W
• Udor AL 4.0/30 W
• Udor AL 3.0/30 T
• Udor AD 3.5/30 S
• Udor AD 4.0/30 S