Centrifugal Pumps
25 models in this family. Representative models: NT, NB, NI.

International brand dossier
ALLWEILER is a historic German pump brand within CIRCOR, with the first Allweiler fire-fighting wing pump to 1860.In water and process systems it is relevant for robust fluid handling, screw and centrifugal pump duties, industrial reliability, materials, seals, and serviceability rather than small packaged-equipment convenience.
ALLWEILER Pumps's position in pumps and pumping equipment is defined by product families such as Centrifugal Pumps, Side Channel Pumps and Propeller Pumps.The portfolio is best understood inside raw water intake, RO/NF feed, transfer, boosting, chemical dosing, wastewater lift, and desalination hydraulics, where engineers compare the technology route, family boundaries, and duty fit before narrowing to individual models.
Representative series on this page include NT, NB and NI.Selection should focus on flow, head, efficiency, NPSH margin, wetted materials, seals, and drive arrangement.These cues help users understand the brand's strongest fit before moving into the model index and product cards for finer comparison.
33
Indexed models
3
Product families
0
Subgroups
Product range and selection
This section answers two questions: which main product families ALLWEILER offers, and which parameters to compare before choosing a specific model.
The main families shown on this page are Centrifugal Pumps, Side Channel Pumps, and Propeller Pumps. Start with the treatment objective, equipment format, and operating duty, then use the model index below to compare exact specifications.
After choosing a product family, compare flow and head, materials, efficiency, and duty cycle. Replacement projects should also verify installation or loading conditions, interfaces, and compatibility with the existing system; new projects should consider operating practice, maintenance, and spare-parts or consumables availability.
3 product familys on this page.
Centrifugal Pumps
25 models in this family. Representative models: NT, NB, NI.
Side Channel Pumps
5 models in this family. Representative models: SRZ, SRZS, SEMA.
Propeller Pumps
3 models in this family. Representative models: ALLPRO PGE / PGF, ALLPRO PPR, ALLTRIMM.
Quick Model Index
The table is intentionally compact: use it to scan model names, product families, and source links quickly. Open the profile cards below when you want richer context.
25 indexed models
| Model | Application | Sources |
|---|---|---|
| NT | The ALLWEILER Series NT pumps are horizontal, single-stage volute casing centrifugal pumps designed according to DIN EN 733. | |
| NB | The ALLWEILER Series NB is a volute casing centrifugal pump designed for circulating, water supply, and water treatment applications. | |
| NI | The NI is an in-line volute casing centrifugal pump designed for various water and industrial liquid applications. | |
| MA-B | The ALLMARINE MA-B is a block design volute casing centrifugal pump suitable for fresh water, sea water, condensate, and oils. It features pedestal mounting for dry. | |
| NAM-F | The ALLWEILER NAM-F is a volute casing centrifugal pump designed for fresh and sea water applications, primarily in shipbuilding as a fire fighting pump. | |
| NSG | The ALLWEILER NSG is a volute casing centrifugal pump designed for dry, horizontal installation on a base plate. | |
| ALLUB NSSV | The ALLUB NSSV is an immersed volute casing centrifugal pump designed for lube oil supply to turbines, generators, and large machinery. | |
| L / LV | The Allweiler LV series is a vertical, dry-installed volute casing centrifugal pump designed for high-pressure applications up to 25 bar and 140°C. | |
| NAM / NIM | The NAM series is a volute casing centrifugal pump in block design, primarily for shipbuilding applications like cooling, ballast, bilge, and fire-fighting. | |
| MI-D | The ALLMARINE MI-D is a double-suction, in-line volute casing centrifugal pump designed for various shipbuilding applications. | |
| MELO | The ALLMARINE MELO series is a volute casing centrifugal pump designed for lube oil supply in marine and stationary power applications. This submerged. | |
| NIT | The ALLWEILER NIT is an in-line volute casing centrifugal pump designed for high-temperature applications in heat transfer technology. This block design pump. | |
| ALLCHEM CNH-B | The ALLCHEM CNH-B is a volute casing centrifugal pump designed for use in petrochemical, chemical, and process industries. | |
| ALLCHEM CNB | The ALLCHEM CNB is a volute casing centrifugal pump in block design for handling aggressive or non-aggressive liquids across various industries. | |
| ALLCHEM CNH-M | The ALLCHEM CNH-M is a magdrive volute casing centrifugal pump designed for heat transfer and process applications. It features a base plate design. | |
| ALLMAG CNB-M | The ALLMAG CNB-M is a magnetic drive centrifugal pump designed for aggressive fluids and applications in chemical processing and marine industries. | |
| ALLMAG CMA | The ALLMAG CMA is a magnetic drive volute casing centrifugal pump designed for aggressive fluids and applications in process engineering, the chemical industry. | |
| ALLMAG CMAL | The ALLMAG CMAL is a magnetically driven volute casing centrifugal pump for base plate installation. | |
| ALLMAG CMAT / CMIT | The ALLMAG CMAT is a volute casing centrifugal pump with a magnetic drive designed for heat transfer applications. It features a block design suitable for dry, vertical. | |
| ALLHEAT NTWH | The ALLHEAT NTWH is a volute casing centrifugal pump designed for heat transfer applications across various industries. It is available in a base plate design. | |
| ALLHEAT NBWH | The ALLHEAT NBWH is a volute casing centrifugal pump designed for high-temperature heat transfer applications. | |
| ALLHEAT NIWH | The ALLHEAT NIWH is an in-line volute casing centrifugal pump designed for high-temperature organic heat transfer oils in various industrial applications. | |
| ALLHEAT CTWH / CHW | The ALLHEAT CTWH is a volute casing centrifugal pump designed for handling organic heat transfer oils in various industrial applications. This base plate mounted. | |
| ALLHEAT CBWH | The ALLHEAT CBWH is a block design volute casing centrifugal pump specifically designed for handling organic heat transfer oils up to 400°C. | |
| ALLHEAT CIWH | The ALLHEAT CIWH is a block-design, in-line volute casing centrifugal pump designed for heat transfer applications. |
5 indexed models
| Model | Application | Sources |
|---|---|---|
| SRZ | The ALLWEILER Series SRZ is a self-priming, segmental side channel pump designed for heavy-duty chemical and process applications. It features a base plate design for dry. | |
| SRZS | The ALLWEILER SRZS is a self-priming, dry-installed side-channel pump designed for handling liquids containing gas or vapor. | |
| SEMA | The ALLWEILER SEMA is a self-priming, dry-installed, segmental side channel pump designed for aggressive and toxic liquids in environmental and industrial applications. | |
| SFH | The SFH is a self-priming, base plate mounted side channel pump designed for various industrial applications including chemical processes and reverse osmosis. | |
| SOHM | The ALLWEILER SOH series is a self-priming side channel pump designed for light duty applications in home engineering, agriculture, and general industry. |
3 indexed models
| Model | Application | Sources |
|---|---|---|
| ALLPRO PGE / PGF | The ALLPRO PG is a propeller pump designed for high-capacity liquid transfer in industrial and environmental applications. | |
| ALLPRO PPR | The ALLPRO PPR is a propeller pump series designed for horizontal or vertical installation in diverse industrial applications. It features a fabricated casing. | |
| ALLTRIMM | The ALLTRIMM is a reversible, in-line propeller pump designed for anti-heeling systems in marine engineering. |
Brand Technical Documents
These document pages collect product manuals, model notes, accessory documents, and application files for this brand in the current category. Open the PDF when original tables, diagrams, or full manuals are needed.
The ALLCHEM CNB is a volute casing centrifugal pump in block design for handling aggressive or non-aggressive liquids across various industries.
The ALLCHEM CNH-B is a volute casing centrifugal pump designed for use in petrochemical, chemical, and process industries.
The ALLCHEM CNH-M is a magdrive volute casing centrifugal pump designed for heat transfer and process applications. It features a base plate design.
The ALLHEAT CBWH is a block design volute casing centrifugal pump specifically designed for handling organic heat transfer oils up to 400°C.
The ALLHEAT CIWH is a block-design, in-line volute casing centrifugal pump designed for heat transfer applications.
The ALLHEAT CTWH is a volute casing centrifugal pump designed for handling organic heat transfer oils in various industrial applications. This base plate mounted.
The ALLHEAT NBWH is a volute casing centrifugal pump designed for high-temperature heat transfer applications.
The ALLHEAT NIWH is an in-line volute casing centrifugal pump designed for high-temperature organic heat transfer oils in various industrial applications.
The ALLHEAT NTWH is a volute casing centrifugal pump designed for heat transfer applications across various industries. It is available in a base plate design.
The ALLMAG CMA is a magnetic drive volute casing centrifugal pump designed for aggressive fluids and applications in process engineering, the chemical industry.
The ALLMAG CMAL is a magnetically driven volute casing centrifugal pump for base plate installation.
The ALLMAG CMAT is a volute casing centrifugal pump with a magnetic drive designed for heat transfer applications. It features a block design suitable for dry, vertical.
The ALLMAG CNB-M is a magnetic drive centrifugal pump designed for aggressive fluids and applications in chemical processing and marine industries.
The ALLPRO PG is a propeller pump designed for high-capacity liquid transfer in industrial and environmental applications.
The ALLPRO PPR is a propeller pump series designed for horizontal or vertical installation in diverse industrial applications. It features a fabricated casing.
The ALLTRIMM is a reversible, in-line propeller pump designed for anti-heeling systems in marine engineering.
The ALLUB NSSV is an immersed volute casing centrifugal pump designed for lube oil supply to turbines, generators, and large machinery.
The Allweiler LV series is a vertical, dry-installed volute casing centrifugal pump designed for high-pressure applications up to 25 bar and 140°C.
The ALLMARINE MA-B is a block design volute casing centrifugal pump suitable for fresh water, sea water, condensate, and oils. It features pedestal mounting for dry.
The ALLMARINE MELO series is a volute casing centrifugal pump designed for lube oil supply in marine and stationary power applications. This submerged.
The ALLMARINE MI-D is a double-suction, in-line volute casing centrifugal pump designed for various shipbuilding applications.
The NAM series is a volute casing centrifugal pump in block design, primarily for shipbuilding applications like cooling, ballast, bilge, and fire-fighting.
The ALLWEILER NAM-F is a volute casing centrifugal pump designed for fresh and sea water applications, primarily in shipbuilding as a fire fighting pump.
The ALLWEILER Series NB is a volute casing centrifugal pump designed for circulating, water supply, and water treatment applications.
The NI is an in-line volute casing centrifugal pump designed for various water and industrial liquid applications.
The ALLWEILER NIT is an in-line volute casing centrifugal pump designed for high-temperature applications in heat transfer technology. This block design pump.
The ALLWEILER NSG is a volute casing centrifugal pump designed for dry, horizontal installation on a base plate.
The ALLWEILER Series NT pumps are horizontal, single-stage volute casing centrifugal pumps designed according to DIN EN 733.
The ALLWEILER SEMA is a self-priming, dry-installed, segmental side channel pump designed for aggressive and toxic liquids in environmental and industrial applications.
The SFH is a self-priming, base plate mounted side channel pump designed for various industrial applications including chemical processes and reverse osmosis.
The ALLWEILER SOH series is a self-priming side channel pump designed for light duty applications in home engineering, agriculture, and general industry.
The ALLWEILER Series SRZ is a self-priming, segmental side channel pump designed for heavy-duty chemical and process applications. It features a base plate design for dry.
The ALLWEILER SRZS is a self-priming, dry-installed side-channel pump designed for handling liquids containing gas or vapor.
AI-ready Product Profiles
These cards are designed as reusable product profiles: the same format can later appear in AI search results, shortlist views, and assisted product matching.
25 profile cards
Product profile
The ALLWEILER Series NT pumps are horizontal, single-stage volute casing centrifugal pumps designed according to DIN EN 733.
Product profile
The ALLWEILER Series NB is a volute casing centrifugal pump designed for circulating, water supply, and water treatment applications.
Product profile
The NI is an in-line volute casing centrifugal pump designed for various water and industrial liquid applications.
Product profile
The ALLMARINE MA-B is a block design volute casing centrifugal pump suitable for fresh water, sea water, condensate, and oils. It features pedestal mounting for dry.
Product profile
The ALLWEILER NAM-F is a volute casing centrifugal pump designed for fresh and sea water applications, primarily in shipbuilding as a fire fighting pump.
Product profile
The ALLWEILER NSG is a volute casing centrifugal pump designed for dry, horizontal installation on a base plate.
Product profile
The ALLUB NSSV is an immersed volute casing centrifugal pump designed for lube oil supply to turbines, generators, and large machinery.
Product profile
The Allweiler LV series is a vertical, dry-installed volute casing centrifugal pump designed for high-pressure applications up to 25 bar and 140°C.
Product profile
The NAM series is a volute casing centrifugal pump in block design, primarily for shipbuilding applications like cooling, ballast, bilge, and fire-fighting.
Product profile
The ALLMARINE MI-D is a double-suction, in-line volute casing centrifugal pump designed for various shipbuilding applications.
Product profile
The ALLMARINE MELO series is a volute casing centrifugal pump designed for lube oil supply in marine and stationary power applications. This submerged.
Product profile
The ALLWEILER NIT is an in-line volute casing centrifugal pump designed for high-temperature applications in heat transfer technology. This block design pump.
Product profile
The ALLCHEM CNH-B is a volute casing centrifugal pump designed for use in petrochemical, chemical, and process industries.
Product profile
The ALLCHEM CNB is a volute casing centrifugal pump in block design for handling aggressive or non-aggressive liquids across various industries.
Product profile
The ALLCHEM CNH-M is a magdrive volute casing centrifugal pump designed for heat transfer and process applications. It features a base plate design.
Product profile
The ALLMAG CNB-M is a magnetic drive centrifugal pump designed for aggressive fluids and applications in chemical processing and marine industries.
Product profile
The ALLMAG CMA is a magnetic drive volute casing centrifugal pump designed for aggressive fluids and applications in process engineering, the chemical industry.
Product profile
The ALLMAG CMAL is a magnetically driven volute casing centrifugal pump for base plate installation.
Product profile
The ALLMAG CMAT is a volute casing centrifugal pump with a magnetic drive designed for heat transfer applications. It features a block design suitable for dry, vertical.
Product profile
The ALLHEAT NTWH is a volute casing centrifugal pump designed for heat transfer applications across various industries. It is available in a base plate design.
Product profile
The ALLHEAT NBWH is a volute casing centrifugal pump designed for high-temperature heat transfer applications.
Product profile
The ALLHEAT NIWH is an in-line volute casing centrifugal pump designed for high-temperature organic heat transfer oils in various industrial applications.
Product profile
The ALLHEAT CTWH is a volute casing centrifugal pump designed for handling organic heat transfer oils in various industrial applications. This base plate mounted.
Product profile
The ALLHEAT CBWH is a block design volute casing centrifugal pump specifically designed for handling organic heat transfer oils up to 400°C.
Product profile
The ALLHEAT CIWH is a block-design, in-line volute casing centrifugal pump designed for heat transfer applications.
5 profile cards
Product profile
The ALLWEILER Series SRZ is a self-priming, segmental side channel pump designed for heavy-duty chemical and process applications. It features a base plate design for dry.
Product profile
The ALLWEILER SRZS is a self-priming, dry-installed side-channel pump designed for handling liquids containing gas or vapor.
Product profile
The ALLWEILER SEMA is a self-priming, dry-installed, segmental side channel pump designed for aggressive and toxic liquids in environmental and industrial applications.
Product profile
The SFH is a self-priming, base plate mounted side channel pump designed for various industrial applications including chemical processes and reverse osmosis.
Product profile
The ALLWEILER SOH series is a self-priming side channel pump designed for light duty applications in home engineering, agriculture, and general industry.
3 profile cards
Product profile
The ALLPRO PG is a propeller pump designed for high-capacity liquid transfer in industrial and environmental applications.
Product profile
The ALLPRO PPR is a propeller pump series designed for horizontal or vertical installation in diverse industrial applications. It features a fabricated casing.
Product profile
The ALLTRIMM is a reversible, in-line propeller pump designed for anti-heeling systems in marine engineering.