NEMO® BO/BS Progressing Cavity Pump with Hopper Design
Efficient Pump Solution for Handling Viscous Media in Environmental, Food, and Chemical Industries
The NEMO® BO/BS hopper design progressing cavity pump in block construction is the ideal solution for handling highly viscous and fibrous media that doesn’t flow freely. This pump is also ideal for liquids with solid content, shear-sensitive, non-lubricating, thixotropic, and dilatant media across diverse industries.
The pump is designed for efficiency, reliability, and continuous operation. This progressing cavity pump features a hopper and coupling rod with a feeding screw, along with a force-feed chamber, to enhance smooth and continuous product feed into the conveying elements.
This pump design is ideal and best suited for applications within wastewater treatment, food processing, chemicals, paper, and various other process industries, providing a compact and reliable solution that ensures continuous, gentle, and low-pulsation conveying of various challenging media.
Advantages of NEMO® BO/BS Progressing Cavity Pump
NEMO® BO/BS Progressing Cavity Pump Construction
The NEMO® BO/BS Progressing Cavity Pump is constructed with a suction housing that is either a rectangular or quadratic feed hopper. It has a coupling rod with a gentle conveying screw and a compression chamber for improved product feeding into the pumping elements.
The BO Series features a rectangular inlet hopper for smoother flow for non-flowing liquids and BS Series features a square inlet hopper which has a more compact footprint for specific installations that need space saving designs.
The hopper dimensions can be adapted to the individual application based on the feeding or upstream equipment. The pump housing can be designed with materials in steel, chrome-nickel-steel or stainless steel and also with special materials upon request. The stator is vulcanized into the housing with sealing on both sides in a variety of elastomers. Stator inlet is designed with hopper-shaped opening for improved feed of the product into the conveying chamber.
Shaft seals are standard seals with single-acting, bi-directional, and wear-resistant. 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 are available based on the complexity of the application.
The NEMO® BO/BS in block design with directly flanged drive and the other model NEMO® SO/SS with bearing housing and drive shaft are ideal for handling higher axial loads and pressures when handling highly viscous, crumbly, and solids-containing media in diverse process industries.
- Flow rates up to 120 m³/h at pressures up to 18 bar in its standard design.
- Viscosity up to 100,000 cP
- Temperatures up to 140 deg C
- Coupling rod with conveying screw and rectangular/square hopper for optimum feeding into the conveying elements.
- Built for speed-proportional dosing of almost all media, ensuring consistent and accurate delivery.
- Its block construction with a flanged drive makes it a compact and economical solution for various industrial applications.
- Conveys complex fluids: Shear-sensitive, Lubricating, and non-lubricating media, Thixotropic and dilatant media, Highly viscous and crumbly media that tend to bridge, Slowly flowing to non-free-flowing media with or without solid content can be conveyed reliably.
- Application-Specific Joints: Various joint options are available to ensure optimal performance for specific applications.
- Seal Options: Standard mechanical seals are provided, with optional seals available for specialized needs.
- Easy & Quick Maintenance: Designed for easy serviceability, reducing downtime and maintenance costs.
| Name | Pressure max. (bar) | Capacity min. (m³/h) | Capacity max. (m³/h) | Speed (rpm) |
|---|---|---|---|---|
| NM015 BO/BS | 12 | 0,01 | 0,7 | up to 800 |
| NM021 BO/BS | 12 | 0,04 | 2 | up to 800 |
| NM031 BO/BS | 12 | 0,1 | 5 | up to 600 |
| NM038 BO/BS | 18 | 0,25 | 12 | up to 600 |
| NM045 BO/BS | 18 | 0,5 | 20 | up to 550 |
| NM053 BO/BS | 18 | 0,8 | 30 | up to 550 |
| NM063 BO/BS | 18 | 1,4 | 40 | up to 500 |
| NM076 BO/BS | 18 | 2,5 | 55 | up to 350 |
| NM090 BO/BS | 18 | 3,5 | 80 | up to 300 |
| NM105 BO/BS | 12 | 7,5 | 120 | up to 250 |
Further sizes and technical data on request.
Comprehensive Service and Support
At NETZSCH, our commitment to your success extends well beyond the initial purchase of your NEMO® BO/BS Progressing Cavity Pump. We offer a complete range of aftermarket services to ensure your pump operates at peak efficiency and reliability throughout its lifecycle.
- Consultation: Our experts provide tailored advice to help you select the right pump configuration and optimize your processes.
- Spare Parts: We maintain a full inventory of genuine spare parts to minimize downtime and ensure optimal pump performance.
- Maintenance: Our routine and preventative services keep your pump running smoothly and prevent unexpected breakdowns.
- Repair: Swift and Efficient: Our prompt repair services ensure minimal disruption and a quick return to operation.
- Modernization: We offer modernization services to keep your pump system up-to-date with the latest technology and performance standards.
FAQs
The NEMO® BO/BS Pump with Hopper is a robust, efficient, and versatile pump, serving various industries like wastewater treatment plants, effluent treatment plants, food, paper, refineries, and agro/bio/construction chemicals. Its capability to handle crumbly media makes it an optimal solution across various process industries.
This pump is engineered to handle a wide range of challenging media, including shear-sensitive, highly viscous, crumbly, and slow-flowing substances, both with and without solid content. These could be medium-consistency paper pulp, pigment paste, ammonium nitrate slurry, fruit pulp, puree, butter, and biogas slurry to name a few.
The NEMO® BO/BS pump offers two rotor/stator geometries and materials for different applications. It is also equipped with a standard mechanical seal, with optional seals available for specific operational preferences, ensuring enhanced flexibility and customization. The pump is also available in designs suited for food Industries in hygienic designs.
Applications NEMO® BO/BS pump with hopper
Contact Us for Expert Solutions
Ready to optimize your industrial processes with the efficient and reliable NEMO® BO/BS Pump with Hopper in Block Construction? Our team of experts provide personalized advice and solutions tailored to your specific needs.
FAQ progressing cavity pumps
Progressing cavity pumps are particularly suitable for pumping highly viscous, abrasive, solid-laden or shear-sensitive media. Typical applications include the chemical, food, environmental, paper and building materials industries, as well as the oil and gas sector.
NEMO® progressing cavity pumps from NETZSCH Pumps & Systems are characterised by gentle, low-pulsation pumping, high dosing accuracy and a wide range of applications. They enable a constant delivery rate even with changing pressures and media compositions.
Progressing cavity pumps can be used to convey low-viscosity to highly viscous media, including slurries, suspensions, pastes, media with a high solids content, and sensitive or gas-laden liquids.
Yes, progressing-cavity pumps are self-priming and exhibit excellent suction performance. This makes them ideal for applications with changing fill levels or difficult suction conditions.
Maintenance requirements are low and predictable. Wear parts such as the rotor and stator can be easily replaced. Maintenance-friendly designs enable short downtimes and high plant availability.
The service life depends on factors such as the medium, speed, pressure and choice of materials. Professional design and the use of original spare parts ensure a long service life and economical operation.
All relevant original spare parts are available for progressing cavity pumps from NETZSCH Pumps & Systems, including rotors, stators, seals, joint parts and other wear-related components. The spare parts are precisely matched to the pump design and ensure high operational reliability.
The correct spare part can be identified by the machine number, serial number, or item number. Spare parts lists, sectional drawings and the operating and maintenance instructions also provide support. Alternatively, the NETZSCH Pumps & Systems service team can provide expert advice on selecting the right original spare part.
The experts at NETZSCH Pumps & Systems will assist you in the design, selection and integration of the right progressing cavity pump – tailored to your specific pumping tasks and process requirements.
