Pulsation-free, smooth flow profile
The fixed-volume cavities between the rotor and stator advance the fluid with a continuous, smooth profile, providing stability in process dosing.
Product group · Flow Transfer Products
Progressive Cavity (Mono) Pumps
Progressive cavity (helical rotor / eccentric screw) pumps are positive-displacement pumps that advance fluid smoothly and without pulsation through fixed-volume cavities formed as a rotor turns inside a flexible stator. They provide reliable flow rate with high-viscosity, particulate or corrosive fluids (sludge, wastewater, dense chemicals), and are supplied in standard or hygienic casing options.
Flow rate0.1 – 500 m³/h
Pressure1 – 24 bar
ViscosityVery high
Stator elastomerNBR / EPDM / Viton
Why it matters
What is a mono pump used for?
It works where other pump types fall short — with sludge, wastewater and very high-viscosity fluids.
Reliable with high-viscosity and particulate fluids
Thanks to its wide passage cross-section and positive-displacement design, it conveys sludge and high solids-content fluids without clogging.
Long service life with corrosive fluids
With the right elastomer and rotor coating selected, it offers a long service life with corrosive chemicals and wastewater.
Easy maintenance via rotor-stator replacement
The rotor and stator are the main wearing parts; replacing them restores the pump to its original performance.
Types
Sub-types of the mono pump
All three operate on the helical rotor-stator principle; they differ in casing hygiene and pressure capacity.
Standard mono pump
The standard solution for wastewater treatment and sludge transfer lines, tolerant of high solids content.
- High solids-content tolerance
- Wastewater/sludge lines
- Durable stator options
Hygienic mono pump
With stainless casing and food-grade elastomers, used for the hygienic transfer of viscous food and cosmetic products.
- Stainless hygienic casing
- CIP-compatible options
- Food-grade elastomer
High-pressure mono pump
Generates high pressure with additional rotor-stator stages; used for long-distance sludge or process transfer.
- High pressure capacity
- Suited to long-line transfer
- Multi-stage rotor
Selection criteria
What data determines the right mono pump?
Selection cannot be made without the first two items. The rest determine the stator elastomer and casing type.
ParameterWhy it mattersWhat we need from you
Flow rate
Calculated from the demand of the process or wastewater line.
m³/h
Pressure
Determined by line resistance and transfer distance.
bar
Viscosity/particle size
Determines the rotor-stator clearance and passage cross-section.
cSt / particle size
Chemical compatibility of the fluid
The stator elastomer (NBR/EPDM/Viton) is selected based on this data.
Chemical type
Temperature
Affects the temperature resistance of the elastomer material.
°C
Connection type
Preference for flanged, clamp or threaded connection.
Connection standard
This is all we need for a quote
It is fine if you do not have all of it. We will fill in the rest together with you.
Create a quote request- Flow rate and pressure
- Viscosity and solids content of the fluid
- Chemical compatibility/temperature of the fluid
- Hygiene requirement (if food/cosmetics)
- Connection type
- Nameplate data of the existing pump (if a replacement)
FAQ
Questions from the field
The questions we encounter most often during the mono pump quotation stage.
Which fluids is it preferred for?
It is preferred for fluids that challenge other pump types, such as wastewater sludge, high-viscosity process liquids, particulate food products and corrosive chemicals.
How is stator life and wear managed?
The stator elastomer is in continuous contact with the fluid and wears over time; it is checked periodically and replaced together with the rotor when needed.
Is there a dry-running risk?
Yes, the stator elastomer can heat up quickly and be damaged when run dry; dry-run protection or level control is recommended.
How is maintenance carried out?
The rotor and stator are supplied as standard spare parts; maintenance is generally limited to removing and replacing these two components.
Do you only serve Istanbul?
No. While our office is on Istanbul's Anatolian side (Ataşehir), we supply and ship across Istanbul's European side, the surrounding provinces and the Marmara region, and Turkey as a whole — covering your equipment end to end, from a single source.
Sıradaki adım
Let's clarify your requirement together
Share your fluid's viscosity, solids content and flow rate requirement, and let's determine the right mono pump for your line together.
Related products
İlgili diğer ürün gruplarımız
Projenizde ihtiyaç duyabileceğiniz tamamlayıcı ekipmanlar.