Stainless Steel Centrifugal Pumps
Horizontal, single-stage stainless steel centrifugal pumps with circular casing. Ratings and main dimensions comply with EN 733. All wetted parts are made of AISI 304 or AISI 316 stainless steel; the back pull-out design and replaceable casing wear rings make maintenance easy.
With their corrosion-resistant construction and primer-free wetted parts, they are used reliably wherever hygiene and corrosion resistance matter — from drinking water, water treatment and cleaning systems to bottle and crate washing lines, surface treatment plants and heating and air-conditioning circuits. They offer suitable solutions for the food, beverage, pharmaceutical, cosmetics and chemical industries.
Main Applications
- Food and beverage production lines (dairy, beverages, etc.)
- Pharmaceutical and cosmetics production processes
- Chemical circulation systems
- Cleaning systems (bottle rinsing, crate washing, etc.)
- Industrial washing machines
- Water treatment systems
- Water supply systems
- Fire-fighting systems
- General and sprinkler irrigation systems
- Drainage systems
- Hot-water heating systems
- Air-conditioning systems
- Surface treatment systems and paint sludge disposal
- General industry
Technical Data
| Max. flow rate | 260 m³/h (60 Hz: 210 m³/h) |
|---|---|
| Min. flow rate | 2 m³/h |
| Max. head | 105 m (60 Hz: 104 m) |
| Min. head | 2 m |
| Max. operating pressure | 12 bar (including inlet pressure) |
| Discharge nominal pressure | PN 12 |
| Fluid temperature | -30 °C … +110 °C |
| Mains frequency | 50 Hz / 60 Hz |
| Mains voltage | 400 V / 460 V |
| Connection | Flanged |
| Drive | Electric motor |
| Motor power | 0.37 – 37 kW |
| Motor protection class | IP55 |
| Suction type | Normal suction |
| Standard | EN 733 |
Material Options
| Component | AISI 304 | AISI 316 |
|---|---|---|
| Casing | Stainless steel AISI 304 | Stainless steel AISI 316 / 1.4571 (AISI 316Ti) |
| Impeller | Stainless steel AISI 304 | Stainless steel AISI 316 / 1.4571 (AISI 316Ti) |
| Casing wear rings | Replaceable, stainless steel | |
| Shaft seal | Maintenance-free mechanical seal (EN 12756) | |
Which material? AISI 304 is recommended for mildly corrosive fluids, drinking water and water treatment; AISI 316 / 1.4571 (AISI 316Ti) for seawater, aggressive fluids, food and chemical applications. Wetted parts are primer-free; a version suitable for food contact (EC 1935/2004) is also available.
Advantages
Corrosion Resistance
- All wetted parts made of stainless steel (AISI 304 / AISI 316).
- Transfers fluids without affecting their purity or colour.
- Primer-free wetted parts, suitable for drinking water applications.
Energy Efficiency
- High-efficiency hydraulic design; the impeller diameter is trimmed to the duty point as standard.
- Energy savings of up to 60% with variable speed control.
- The efficiency requirements of the ErP Directive (MEI ≥ 0.4) are significantly exceeded.
Operating Reliability
- Designed for operating pressures up to 12 bar.
- Long service life with a maintenance-free mechanical seal to EN 12756.
Wide Range of Options
- Numerous standardised mechanical seal options (EN 12756).
- Ball feet and round base feet for installation without a foundation.
- Version suitable for food contact (EC 1935/2004).
Ease of Service
- Back pull-out design: dismantling without removing the pump casing from the piping.
- Replaceable wear rings reduce wear at the impeller and discharge cover.
High-Efficiency Motor
- Magnet-free synchronous reluctance motor option in IE4/IE5 efficiency class, operated with a speed controller that requires no rotor position sensor.*
* The IE5 efficiency class (IEC/TS 60034-30-2) motor option is available up to 15/18.5 kW. Please contact our sales team to check suitability.
Design and Construction Features
- Horizontal, single-stage design with circular casing
- Ratings and main dimensions to EN 733
- Long-coupled back pull-out design with bearing bracket
- All wetted parts made of AISI 304 or AISI 316 stainless steel
- Replaceable casing wear rings
- Mechanical seal to EN 12756
- Motor mounting dimensions to EN 50347, envelope dimensions to DIN V 42673
- ATEX-compliant version available for explosive atmospheres
To choose the right model, send us your required flow rate, head, fluid type and temperature via the Request a Quote form; our technical team will specify the most suitable pump.
How to Choose
- Determine the flow rateThe total fluid demand of the system (m³/h) determines the pump size and impeller diameter.
- Calculate the headAdd static height, pipe and fitting losses and the required outlet pressure; together with the inlet pressure, the total must not exceed 12 bar.
- Define the fluid and temperatureThe type of fluid, its pH value and the operating temperature between -30 °C and +110 °C determine material and seal selection.
- Select material and motorAISI 304 for mildly corrosive fluids, AISI 316 for seawater, food and aggressive fluids; a speed-controlled high-efficiency motor for energy savings.
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