PRODUCT INFORMATION
HIGH PRESSURE DRAINAGE PUMPS
The range of submersible High Pressure Drainage pumps are specialty pumps that are designed with superior reliability in mind for rainwater tanks, and suitable for pumping drinking water with a neutral pH.
Using an automatic float, it detects when water is available. Primarily used with rainwater tanks, it's also used for lawn and garden irrigation, treated effluent disposal and water transfer from wells.
Application
- Non-potable rainwater applications
- Lawn and garden irrigation
- Sump emptying to higher heads
- Treated effluent disposal
- Water transfer from wells
Submersible sump pump with two and three impeller designs for higher pressure, up to 45m head.
FEATURES & BENEFITS
WHY CHOOSE DAVEY SUBMERSIBLE DRAINAGE PUMPS?
Double mechanical seal, one in oil bath on motor and extra mechanical seal on pump
- Superior reliability
- Long service life
Corrosion resistant 304 stainless steel shaft, motor shell and fasteners.
- Long service life
Cast 316 stainless steel motor caps and super tough engineered thermo plastic pump casing.
- Outstanding corrosion resistance
- Long life
Centrifugal multistage 2 and 3 impeller designs
- Higher pressures and increased efficiency
Closed vane impellers with long engagement “D” drives
- Positive operation
- Long service life
Patented independently floating neck rings
- Outstanding pump performance
- Long pump life
Corrosion resistant hard wearing polycarbonate impellers
- Long service life
Corrosion resistant stainless steel fine mesh suction strainer with large surface area
- Prevents blockages of the pump by solids
In-built automatic thermal overload
- Protects the motor in the event of blockage or voltage supply problems
HO7RNF oil resistant leads, 10 metres long with 3 pin power plug
- Easy to connect to power supply
- Longer life in dirty water
TECHNICAL DATA
OPERATING LIMITS
| Type |
D42A/B | D53A/B |
| Capacities to | 120 lpm | 130 lpm |
| Maximum total head | 32m | 45m |
| Maximum submergence | 12m | 12m |
| Maximum pumped water temperature | 40ºC | 40ºC |
| Maximum soft solids | 1.9mm O.D. | 1.9mm O.D. |
| Outlet size (BSP) | 1" F | 1" F |
MATERIALS OF CONSTRUCTION
| PART | MATERIAL |
| Impeller | Glass filled polycarbonate |
| Lock nut | 304 stainless stee |
| Pump casing | Glass filled polycarbonate |
| Diffuser and blanking ring | Glass filled noryl |
| Mechanical seal – pump | Carbon / ceramic |
| Mechanical seal – motor | Silicon carbide / ceramic oil in bath |
| Shaft seal elastomer | Nitrile rubber |
| Pump shaft | 304 stainless steel |
| O-rings | Nitrile rubber |
| Motor shell | 304 stainless steel |
| Bottom bearing housing | Cast 316 stainless steel |
| Upper motor cover | Cast 316 stainless steel |
| Handle | 304 stainless stee |
| Fasteners | 304 stainless stee |
| Float and power supply leads | HO7RN-F oil resistant |
ELECTRICAL DATA
| Type | D42A/B | D53A/B |
| Supply voltage | 220-240V | 220-240V |
| Supply frequency | 50Hz single phase | 50Hz single phase |
| Speed | 2 pole, 2850rpm | 2 pole, 2850rpm |
| Full load current (Run) | 4.3A | 5.7A |
| Locked rotor current (Start) | 14A | 14A |
| Input power (P1) | 1.00kW | 1.31kW |
| Output power (P2) | 0.60kW | 0.84kW |
| IP rating | X8 | X8 |
| Insulation class | Class F | Class F |
| Starting | P.S.C. | P.S.C. |
| Lead | 10m long | 10m long |
INSTALLATION & PRIMING
Use a rope to position and retrieve the pump. Do not lower or retrieve the pump using the power lead as this may damage the cable entry seals, causing water leaks and unsafe operation.
Do not use this product for recirculating or filtering swimming pools, spas, etc. While these pumps are built to high safety standards, they are not approved for installations where people will be in the water while they are operating.
Do not pump abrasive materials. Sand and grit in the water being pumped will accelerate wear, causing shortened pump life
Keep your pump clean, particularly in situations where lint, hair or fibrous materials may get bound around the pump shaft. Regular inspection and cleaning will extend pump life.
Make room for the float switch to operate. Automatic models have a float switch to turn them on when the water level rises and turn them off again when it has been pumped down to the safe operating level of the pump. If the float switch is not free to rise and fall, correct pump operation may not be possible.
Do not run your pump dry. Non-automatic models must be switched off manually or by way of an external float/level switch when the water level is reduced to the top of the pump housing.
DRAWINGS
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LITERATURE
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Davey D42A/B Submersible High Pressure Drainage Pump Brochure |
