NEMO® SY progressing cavity pumps are used in demanding applications for continuous, pressure-stable, gentle and low-pulsation conveyance as well as dosing in proportion to speed in nearly every branch of industry worldwide. The progressing cavity pump convinces through an extremely broad spectrum of applications.
Preferably, thin to viscous, solids-containing, shear-sensitive, lubricating and non-lubricating, thixotropic and dilatant as well as abrasive or adhesive media are conveyed. The pump is ideally suited for high-pressure applications. Four different rotor/stator geometries are available, enabling the pump to be customized perfectly to your application case. Furthermore in bearing block design and with a free shaft end, the pump can be driven by all types of drives, such as servo motors, diesel engines or hydraulic drives.
1 Rotor
In wear- and corrosion-resistant designs including the wear-free ceramic rotor NEMO CERATEC®.
2 Stator
Vulcanized into the tube with sealing on both sides in a variety of elastomers, plastics and metals. Stator inlet with hopper-shaped opening for improved feed of the product into the conveying chamber. The stator is oil, acid and alkali resistant.
3 Drive chain
Coupling rod and two gimbal joints for the transmission of power from the drive to the rotor.
4 Shaft seals
Standard with single-acting, bi-directional, wear-resistant mechanical seal. Upon request, with single- or double-acting mechanical seals of varied designs and from various manufacturers, cartridge and special seals as well as packed glands.
5 Suction and discharge housing
Flange and threaded connections in accordance with DIN and international standards. Materials in cast iron, steel, chrome-nickel-steel rubberized; also special materials upon request.
6 Bearing block with free shaft extension
Large double bearing ensures a high level of shaft stability and thereby ideal conditions for a great variety of mechanical seals. The free shaft extension makes it possible to use any drive type including diesel and hydraulic drives.
| Size* | Pressure max. (bar) | Capacity min. (m³/h) | Capacity max. (m³/h) | Speed (rpm) |
| NM003 BY | 72 | up to | 0,003 | 1000 |
| NM005 BY | 72 | up to | 0,015 | 1000 |
| NM008 BY | 72 | up to | 0,1 | 1000 |
| NM011 BY | 72 | up to | 0,2 | 1000 |
| NM015 BY | 72 | up to | 2,5 | 800 |
| NM021 BY | 72 | up to | 3 | 800 |
| NM031 BY | 72 | up to | 5,4 | 600 |
| NM038 BY | 72 | up to | 18 | 600 |
| NM045 BY | 72 | up to | 20 | 550 |
| NM053 BY | 72 | up to | 31,5 | 550 |
| NM063 BY | 72 | up to | 38 | 550 |
| NM076 BY | 72 | 4 | 60 | 550 |
| NM090 BY | 60 | 5 | 88 | 450 |
| NM105 BY | 48 | 6 | 133 | 350 |
| NM125 BY | 36 | 20 | 130 | 350 |
| NM148 BY | 24 | 28 | 350 | 250 |
*Further sizes and technical data on request.
- Variable, modular construction system
- Various rotor/stator geometries and a wide range of materials
- The right joint for every application
- Mechanical seal as standard, other seals optional
- Delivery pressure up to 72 bar
- Gentle product conveyance
- Pump connections according to national and international standards, as well as in special design
- Easy serviceability
