MACNAUGHT Air Operated Diaphragm Pump 3/4"
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Same-day dispatch
In-stock orders by 2pm AEST
Australia-wide delivery
Direct to your job from Brisbane
Authorised service
In-house warranty + repairs
Trade pricing for all
No trade-only accounts
The DDP19 offers an economical fluid transfer option where medium to high flow rates are needed with little back-pressure. The ability to dry-run allows easy priming while operating without any damage to the pump.
A removable air valve allows repairs to be made while the pump is still fitted in place for quick, simple maintenance. The polypropylene and aluminium body allows this pump to be used with a range of compatible chemicals as well as new or used oils, engine coolants (RTU), diesel or oily water applications.
It is fully repairable and spare parts are readily available. Not suitable for flammable liquids. The Macnaught Advantage warranty covers manufactured components for 2 years and wear components for 1 year.
Features
Flow Rate: Up to 46 litres per minute, measured with water at the pump outlet.
Removable Air Valve: Easy swap-out for repairs without costly dismantling or disconnecting.
Composite Body: Polypropylene and aluminium body for a wide range of chemical compatibility and broader applications.
Speed Control: Air-operated pumps can be speed controlled for more control over output.
Exhaust Muffler: Removable exhaust muffler included for easy replacement or remote fitting to reduce noise.
Fast Transfer: Fast fluid transfer for low viscosity fluids, an inexpensive way to move large volumes.
Self-Priming: Easy self-priming with no damage to the pump while running with little or no fluid flow for short periods.
Included accessories
Specifications
| Max Air Pressure | 690kPa (100psi) |
|---|---|
| Inlet / Outlet Ports | 3/4" NPT(F) |
| Air Inlet Size/Type | 3/8" NPT(F) |
| Max Flow Rate | 45 L/min (viscosity dependant) |
| Suction Lift | 3.9m (dry) / 6.7m (wet) |
| Max Solids Handling | 1.6mm (0.0625") |
| Fluid Temperature Range | -23degC to 88degC |
| Max Noise Level | 84 dB(A) |
| Fluid Compatibility | Oils (new and used), engine coolants RTU (new and used), oily water, diesel |
| Wetted Components | Aluminium/Polypropylene (body), aluminium (valve seats), Buna N (diaphragms), Acetal (check valves) |
Shipping & Returns
Same-day dispatch from one of our national warehouses on in-stock orders placed before 2pm AEST.
30-day returns on unopened, stocked items — customer pays return freight. Non-stocked / special-order items are subject to a 50% restocking fee.
Need help speccing your kit?
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