NEMO® Progressing Cavity Pump in FSIP® Design
Full Service in Place: Where Maintenance and Service Friendliness Matter
General
NEMO® progressing cavity pumps in FSIP® design can be used in any area of industry where a great variety of different substances must be pumped or very precisely dosed.
The FSIP® concept of the NEMO® progressing cavity pump is especially interesting where pumps are installed in wear intensive applications requiring more service and maintenance work. Every time the installer' s workload is eased, additional work steps are avoided and maintenance time is reduced, this enables savings in terms of capacities and costs.
The FSIP® pump is designed in a way that the housing itself functions as support and orientation guideline. The special design enables that each part automatically fits into its destination. Positioning is done automatically without further adjustments. Therefore the change of all wear parts takes less than half of the time required so far.
In block construction with a flanged drive, this NEMO® pump is particularly compact and economical. The pump also differentiates itself by means of low investment and operating costs. In FSIP® design the pump can help to safe even more maintenance costs and costs caused by downtimes. Two rotor/stator geometries are available to cover a broad spectrum of products and applications. Contact us and we will help you find the optimal solution for your particular application.
Features of the NEMO® progressing cavity pump:
- Continuous low-pulsation conveyance unaffected by fluctuations in pressure and viscosity
- Conveyance volume in proportion to rotation speed with high dosing precision over the entire rotational-speed range
- High pressure capability without valves
- Location of the mechanical seal directly under the intake port in the pumping space makes external flushing of the seal unnecessary in many applications
- Short drive shaft and pump lantern offer high stability for mechanical seal installation
- Gentle product conveyance
- Pump connections in accordance with national and international standards, as well as in specially designed models
- Easy serviceability
Advantages of the NEMO® progressing cavity pump in FSIP® design:
- The FSIP® design is fully compatible to the existing BY series. The concept consists of three stages, FSIP.ready, FSIP.advanced and FSIP.pro, which are designed to upgrade already installed pumps step by step, or which are available for new installations according to the individual needs of our customers.
- All wearing parts can easily be replaced when opening the pump from flange to flange
- As the rotor-stator unit can be removed sideways or upwards there is no additional service length required. The pumps installation space has been reduced. This is valid both for the conventional stator as for the modern iFD-Stator®.
- It is now easier to dis-assemble/ assemble the rotor, because it is removed with the iFD-Stator®. It can be replaced without pre-tension when the stator housing has been opened.
- Variable modular system
- Various rotor/stator geometries and a large spectrum of materials
- Robust and compact block construction
- The right joint for any application
- Standard mechanical seal, other seals optional
Everything from a single supplier: To accommodate the various applications in your processes, it is now also possible to procure NEMO® progressing cavity pumps together with TORNADO® industrial rotary lobe pumps and NOTOS® multiple screw pumps. Take advantage of our decades of experience and know-how in the manufacturing of positive-displacement pumps.
Technique
The FSIP® design is fully compatible to the existing BY series. The concept consists of three stages, FSIP.ready, FSIP.advanced and FSIP.pro, which are designed to upgrade already installed pumps step by step, or which are available for new installations according to the individual needs of our customers.
1. Housing in FSIP® design with inspection cover
The FSIP® design of the suction housing mainly differs from the standard design when you look at the new large inspection cover, but the housing dimensions remain unchanged.
All NEMO® BY pumps which have already been installed can be upgraded without any problem. After this upgrade you can fully service the pump while it is installed. All wetted parts are immediately accessible. All wearing parts can be replaced in less than half the time.
2. Inspection cover
The inspection cover is fixed by only 5 screws which can be easily removed without special tool. Anyway the clever design makes sure that there is no leakage at the cover neither under high pressure nor in vertical installation.
3. Stator with iFD® technology
The stator consists of a reusable two-part stator housing and an exchangeable elastomer part. The benefits of the new technology are a reduced starting torques, higher degree of efficiency, prolonged lifetime, easier and faster change of the wear part and environmentally friendly disposal.
In combination with the suction housing in FSIP® design there is the additional benefit that the rotor/stator can be changed simply and quickly outside the pump and pre-tensioning, once the stator housing has been opened.
The rotating unit can simply be lifted out and leaves the pump open from flange to flange. The formerly needed "service length" is no longer required, giving the pump a much shorter footprint - a strong argument for the installation of the relatively long progressing cavity pumps. This is also valid when a standard stator is being used.
4. Rotor
In wear- and corrosion-resistant designs, various materials on request.
4a Cartridge joint and rotor head
For the pump in FSIP® design we offer you to order the rotor screw separately as a spare part, changing only the worn part and keeping the rotor head in combination with the cartridge joint. Besides you safe the time for the disassembly of the joint.
Removing the inspection cover from the FSIP® pump you gain access to a sleeve coupling which joins the rotor to the coupling rod. Here only one screw has to be removed to split both elements from each other.
5. and 5a Drive train and sleeve coupling
Removing the inspection cover from the FSIP® pump you gain access to a sleeve coupling which joins the rotor to the coupling rod. Here only one screw has to be removed to split both elements from each other.
6. Shaft Seals
Standard for the FSIP® concept is a single acting mechanical seal in cartridge design, which can be easily removed through the large inspection opening. Other options upon request.
7. Block Construction
The drive is flanged directly to the lantern of the pump, resulting in compact dimensions, low total weight, constant axial heights irrespective of the construction type and size of the drive, and ease of maintenance and serviceability as well as high efficiency.
The NEMO® progressing cavity pump in FSIP® design is available…
- in various sizes for flow rates from 2 to 200 m³/h
- for differential pressures up to 12 bar
- in various materials, from steel to chrome-nickel-steel, various other materials on request.
- with various stator elastomers, from highly abrasion-resistant natural rubber, to oil-, acid-, and alkali-resistant elastomers, to Aflas and Viton.
- in S/L-Geometries to be customized optimally to your application
Applications
The NEMO® progressing cavity pump is used primarily for substances with the following properties:
- Consistencies from runny to pasty
- Substances with solid content
- Shear-sensitive
- Smearing or non-smearing
- Thixotropic and dilatant
- Abrasive
- Adhesive
… such as wastewater, activated sludge, plaster and cement mortar, acids, lime water, emulsion paints, soaps, adhesives, etc.
Accessories
The following accessories are available:
- Systems for monitoring the conveying pressure
- Dry running protection units
- Safety valves
- xLC® stator adjustment unit
- Electrical control systems
- Bypass lines
- Application-specific baseplates
- A great variety of drive systems
