nsb gas consulting: SB compressors and nsb vacuum pumps, spare parts and replacement machines
Spare parts and replacement machines for SB liquid ring compressors and nsb vacuum pumps, including nuclear plant designs. Selection by nameplate and a quotation per project.
SB liquid ring compressors
nsb gas processing launched the SB compressor series in 2006. The machines were built over several generations, with changes to the internal design between them. Some units were designed for a specific customer process, so parts are matched to the machine of each project.
- SB series since 2006
- Several design generations
- Designs for customer processes
- Type example: SB2.08-150E
Vacuum pumps and compressors for nuclear plants
For nuclear power stations nsb gas consulting provides vacuum pumps and compressors PG 135/45, PG 135/70, PMH 156 D9, P2MK 1803, P2MK 1806 and P3MK 2006. Parts and pumps are made to the project-specific inspection and test plan (ITP). Replacements are matched to plant requirements.
- PG 135/45 and PG 135/70
- PMH 156 D9
- P2MK 1803 and P2MK 1806
- P3MK 2006; made to ITP
SB compressor impellers and components
Over the years NSB upgraded several components of the SB design. First-generation impellers were welded; later ones were foundry-made or milled from forged material. Impellers and other replacement parts are matched to the machine generation for correct geometry and performance.
- First generation: welded impeller
- Later versions: foundry-made impeller
- Impeller milled from forgings
- Matched to machine generation
nsb machine types on the nameplate
The type on the nameplate gives the size and model of the machine: compressor, vacuum pump or special design. Types include SB, PMH, PMZF, PG, PMZE and P3MK, followed by size and configuration, for example SB2.08-150E. A system plate shows the complete system name and the machine type of each stage.
- Types SB, PMH, PMZF
- Types PG, PMZE, P3MK
- Example: SB2.08-150E
- Machine number on the plate
How to select an nsb machine or spare part
Selection starts with the nameplate. The type gives the size and model of the machine — compressor, vacuum pump or special design: SB, PMH, PMZF, PG, PMZE or P3MK, followed by size and configuration, for example SB2.08-150E. The machine number is also on the nameplate.
SB compressors were built over several generations, and some machines were designed for a customer process. nsb gas consulting therefore identifies the machine and the project it was first delivered for before selecting a spare part or a replacement machine.
SB compressors: generations and impellers
nsb gas processing launched the SB series in 2006. The head of nsb gas consulting designed these machines from the first unit to the current versions.
The impeller of first-generation compressors was welded, later ones were foundry-made or milled from forged material, so the impeller is matched to the machine generation.
Designs for nuclear power stations
For nuclear plants nsb gas consulting provides vacuum pumps and compressors PG 135/45, PG 135/70, PMH 156 D9, P2MK 1803, P2MK 1806 and P3MK 2006. Spare parts and pumps are made to the project-specific ITP.
Vacuum systems for chemicals and pharmaceuticals
nsb built vacuum systems with liquid ring pumps for chemical and pharmaceutical applications. nsb gas consulting no longer provides hardware for these systems: engineering expertise and help in sourcing materials from qualified suppliers remain available.
The company and nsb history
The story begins in 1985 in the liquid ring machines department of Sulzer Burckhardt in Basel. In 2000 the department passed to nsb gas processing, in 2012 the company was sold to Pompetravaini (Pompetravaini-nsb), in 2018 it was liquidated and Busch acquired the assets (Busch-nsb).
nsb gas consulting GmbH (Switzerland) was founded by the last nsb knowledge carrier and has operated since October 2025. Machine type, scope and lead time are stated in the quotation for each project.
nsb gas consulting and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of nsb gas consulting and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.
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