Evak Stainox range
The Evak Stainox range is a family of fully cast AISI 316 stainless steel submersible sewage pumps for arduous contaminated water, corrosive effluent, and chemical wastewater duties. Loss-wax cast body, vortex impeller, and Viton sealing throughout — built for environments that would rapidly corrode cast iron pumps.
Six models from 0.5 HP to 7.5 HP, in 2″, 3″, or 4″ discharge sizes, with 230V single-phase or 400V three-phase supply and 35–45 mm free passage for reliable solids handling across the entire range. Matching SQS and SQM guiderail kits available for permanent auto-coupling installation.
Pump range
| Model | Power | Discharge | Max flow | Max head | Solids |
|---|---|---|---|---|---|
| Stainox 5.05 | 0.37 kW / 0.5 HP | 2″ | 360 L/min | 9.5 m | 35 mm |
| Stainox 5.10 | 0.75 kW / 1 HP | 2″ | 470 L/min | 14 m | 35 mm |
| Stainox 5.20 | 1.5 kW / 2 HP | 2″ or 3″ | 630 L/min | 19 m | 45 mm |
| Stainox 5.30 | 2.2 kW / 3 HP | 2″ or 3″ | 700 L/min | 21.5 m | 45 mm |
| Stainox 5.50 | 3.7 kW / 5 HP | 3″ or 4″ | 1,000 L/min | 22 m | 45 mm |
| Stainox 5.75 | 5.5 kW / 7.5 HP | 3″ or 4″ | 1,110 L/min | 27 m | 45 mm |
Auto-coupling guiderail kits
Matching guiderail systems for permanent wet-well installation. Twin stainless steel guide rails, pedestal coupling foot, upper bracket, and lifting chain. The pump slides down the rails and locks into the coupling at the bottom — enabling removal for service without personnel entering the wet well.
| Accessory | Fits | Frame |
|---|---|---|
| Stainox SQS Guiderail Kit | Stainox 5.05, 5.10 | SQS (0.5–1 HP) |
| Stainox SQM Guiderail Kit | Stainox 5.20, 5.30, 5.50, 5.75 | SQM (2–7.5 HP) |
8 products
The Evak Stainox 5.05 (230V) is a fully cast AISI 316 stainless steel submersible sewage pump for arduous contaminated water and corrosive effluent duties. 0.37 kW…
The Evak Stainox 5.05 (400V) is a fully cast AISI 316 stainless steel submersible sewage pump for arduous contaminated water and corrosive effluent duties. 0.37 kW…
The Evak Stainox 5.10 (230V) is a fully cast AISI 316 stainless steel submersible sewage pump for arduous contaminated water and corrosive effluent duties. 0.75 kW…
The Evak Stainox 5.10 (400V) is a fully cast AISI 316 stainless steel submersible sewage pump for arduous contaminated water and corrosive effluent duties. 0.75 kW…
The Evak Stainox 5.20 (230V) is a fully cast AISI 316 stainless steel submersible sewage pump for arduous contaminated water, corrosive effluent, and heavier-duty solids…
The Evak Stainox 5.20 (400V) is a fully cast AISI 316 stainless steel submersible sewage pump for arduous contaminated water, corrosive effluent, and heavier-duty solids…
The Evak Stainox 5.50 (400V) is a heavy-duty fully cast AISI 316 stainless steel submersible sewage pump for major corrosive-fluid and effluent duties. 3.7 kW /…
The Evak Stainox 5.75 (400V) is the flagship of Evak’s fully cast AISI 316 stainless steel submersible sewage pump range. 5.5 kW / 7.5 HP three-phase 400V…
Frequently Asked Questions
Quick answers to common questions about the Evak Stainox range. 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.