Progressing Cavity (Single Screw) Pump
Updated: 2022-08-11
seepex progressing cavity pumps in N (general-purpose, 30 L/h–500 m³/h, up to 48 bar), T (non-flowing media with feed hopper, up to 36 bar) and CS (hygienic food/pharma with CIP/SIP, up to 24 bar) series for stable, low-pulsation transfer of low- to high-viscosity and abrasive media.
Selection support
- Share flow rate, pressure, medium, temperature and material requirements.
- We can support pump selection, dosing package configuration and spare parts matching.
- Detailed English datasheets and quotations are available for priority models on request.
Technical details
1. About seepex
seepex is headquartered in Bottrop, central Germany, and is principally engaged in the development, manufacture, worldwide sales and after-sales service of progressing cavity (single screw) pumps. These pumps can convey low- or high-viscosity media as well as corrosive media. seepex has branches and a sales network across the globe (manufacturing bases in Germany, China and the USA), and its subsidiaries and agencies have achieved great success in more than 50 countries worldwide.
seepex progressing cavity pumps, macerators and control systems incorporate an advanced, sophisticated quality-management system. The products use high-quality materials and have proven robust quality that meets demanding technical and quality requirements. The product range comprises 8 main product groups and 27 product series. The flexible installation design makes it adaptable to a wide variety of operating conditions and almost all industrial fields.
2. Product Series and Features
2.1 N Series — General-Purpose Pump
Flow rate: 30 L/h – 500 m³/h | 0.132 USGPM – 2,200 USGPM
Pressure: up to 48 bar | 720 PSI
Advantages and Features
- Stable, low-pulsation pumping;
- High self-priming capability, even with gas-liquid mixtures up to 8.5 mWS;
- Can be installed in any position;
- Large flanged feed inlet;
- Pump running direction can be changed according to the conveying direction.
2.2 T Series — Pump for Non-Flowing Media
The seepex T series — pump for non-flowing media — is suitable for high-viscosity materials that have very poor or no flowability. For such materials the self-priming ability of the N series is insufficient to draw them into the piping. For this reason the T-series pump is equipped with a feed hopper that helps supply the product safely. These pumps have been successfully used in almost all industrial sectors to pump high-viscosity products.
Flow rate: 50 L/h – 500 m³/h | 0.220 USGPM – 2,200 USGPM
Pressure: up to 36 bar | 540 PSI
Advantages and Features
- Pump equipped with a feed hopper and an auger conveyor;
- The pitch and diameter of the auger are adapted to optimal feed-operating conditions;
- An optimal solution for conveying media of various viscosities and properties;
- A wide range of models, available in block design or shaft-end-less design;
- Easy to maintain thanks to the plug-in joint between the rotating unit and the drive — compact and easy to clean.
2.3 CS Series — Food and Pharmaceutical Pump
The seepex CS series pumps are mainly used in the food, pharmaceutical, cosmetics and chemical industries. With CIP (clean-in-place) and SIP (sterilize-in-place) functions, these pumps meet high hygiene requirements and are suitable for processing, cleaning and sterilization.
Flow rate: 30 L/h – 130 m³/h | 0.132 USGPM – 572 USGPM
Pressure: up to 24 bar | 360 PSI
Advantages and Features
- Easy to maintain thanks to the plug-in joint between the rotating unit and the drive — disassembly and assembly require no special tools;
- Optimized, clearance-free pump casing prevents product deposits;
- High-quality casing walls and rotating internal-part surfaces greatly simplify residue-free cleaning;
- Easy-to-install joints make maintenance simpler;
- Mechanical seals for different applications provide hygienic shaft sealing;
- Approved stator materials and secondary seals ensure high product safety;
- High flush flow in the suction-tube sleeve ensures thorough cleaning for residue-free and aseptic processing.
3. Applications
| Agriculture | Paint mixing room |
| Sugar industry | Sludge dewatering |
| Pharmaceutical and cosmetics industry | Fishery |
| Ceramics industry | Coalbed methane |
| Chemical and biochemical industry | Specially designed products |
| Metering of chemical additives | Environmental protection industry |
| Crude-oil processing | Biodiesel |
| Landfill leachate | Power industry |
| Multiphase conveying | Electroplating |
| Poultry and meat processing | Oil, gas and petrochemical industry |
| Dewatered sludge treatment | Confectionery industry |
| Direct flue-gas desulfurization | Pulp and paper industry |
| Wastewater and sludge treatment | Textile industry |
| Construction | Metering |
| Drinking-water treatment | Feeding |
| Wood processing | Papermaking |
| Dyeing and painting industry | Shipbuilding |
| Fruit and vegetable processing | Brewing industry |
| Automotive industry | Winemaking industry |
| Food and beverage (branch) | Drilling mud |
| ATEX | Dough processing and bread baking |
| Biogas |