EVAK Drainox range
EVAK Drainox 1500 – 400v
- Established 1975
- Trusted by thousands of customers
The EVAK Drainox 1500 (400V) is the highest-output three-phase pump in the Drainox site drainage family – built for arduous dewatering on commercial and industrial sites where three-phase power is available. Contractor-grade stainless steel and cast iron construction with an added A356 aluminium oil chamber, Hytrel vortex impeller and dual-material mechanical seal (upper CA/CE, lower SIC/SIC) – engineered for extended service life under heavy load.
- Stainless steel strainer base, outer cover and handle
- FC20 cast iron pump housing, ADC12 alloy motor housing, A356 aluminium oil chamber
- Hytrel vortex impeller with 5mm free passage
- 400V three-phase, manual operation – suited to commercial and industrial installations
More about this product
Overview
The EVAK Drainox 1500 (400V) is the three-phase manual variant of the Drainox range’s highest-output pump – built for arduous dewatering applications on commercial and industrial sites where three-phase power is available. Contractor-grade throughout – stainless steel strainer base, cover and handle over an FC20 cast iron pump housing, with an ADC12 alloy motor housing and an added A356 aluminium oil chamber not found on the smaller Drainox models. The Hytrel vortex impeller and dual-material double mechanical seal (upper CA/CE, lower SIC/SIC) are engineered for extended service life under heavy load. The three-phase motor draws just 3.5A per phase – a significantly lighter electrical load than the 12A drawn by the 230V single-phase variant.
When to Choose the 1500
The 1500 delivers 470 l/min and 19.5m head – significantly more than the 750’s 300 l/min / 15m or the 400’s 225 l/min / 11m. Choose it when volume, head or duty cycle push the smaller Drainox models beyond their design point, and specify the 400V three-phase variant where three-phase power is available for reduced running cost.
For lighter duties, the Drainox 400 400V or 750 400V is usually sufficient.
Key Features
Performance at a Glance
Technical Specification
| Voltage | 400V three-phase |
| Motor rating | 1.5kW (2HP), 2850 RPM |
| Current draw | 3.5A |
| Operation | Manual (no float switch) |
| Max flow | 470 litres/min |
| Max head | 19.5 metres |
| Free passage | 5mm |
| Discharge | 2″ BSPM with hosetail |
| Seal | Double mechanical seal in oil chamber – upper CA/CE, lower SIC/SIC |
| Motor protection | Auto-reset thermal protector |
| Cable | 10m H07RN-F |
| Housing materials | Stainless steel strainer base, cover and handle; FC20 cast iron pump housing; ADC12 alloy motor housing and seal casing; A356 aluminium oil chamber |
| Impeller | Hytrel vortex, abrasion resistant |
| Weight | 24kg |
| Dimensions | Diameter 225mm · Height 345mm |
Applications
Large-area civil dewatering, deep sump duties on three-phase sites, permanent installations with external control panels, and continuous or extended-duty dewatering where 400V three-phase power is available. The 3.5A per-phase current draw makes it an efficient electrical load on a three-phase supply, particularly for long-duration operation or where multiple pumps are running from the same distribution board.
FAQs
Yes – this is the 400V three-phase variant. If your site only has single-phase mains, choose the 230V variant. The Drainox 1500 is not available in 110V.
Is this pump manual or automatic?
This is the manual
Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.
Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).
Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.
Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.
Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.
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Frequently Asked Questions
Quick answers to common questions about the EVAK Drainox 1500 – 400v. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.
What is a submersible pump?
A submersible pump is designed to operate fully submerged in the liquid it is moving. The motor is sealed inside the pump body and cooled by the surrounding water. Submersibles are used for drainage, sewage, septic tanks, deep wells and boreholes, and for raising water from sumps, cellars and floodwater. Many stocked at Anglian Pumping handle solids in suspension.
Can submersible pumps handle solids and sewage?
Yes – some submersibles are designed for clean water only, others handle solids up to 50 mm or full raw sewage. Anglian Pumping stocks ABS, BBC, Flygt and T-T Submersibles ranges that include vortex, single channel and grinder impellers for different solids handling requirements. Always match the pump to the maximum solid size and the type of effluent it will see.
When should I use a submersible pump instead of a surface pump?
Use a submersible when the water level is more than around 8 metres below the pump installation point – surface pumps cannot self-prime beyond that depth. Submersibles are also better when the liquid contains solids, when noise must be minimised, or when the pump needs to operate in confined spaces such as sumps and chambers where a surface pump would not fit.