
FDM 50 Compressed Air Diaphragm Pump
For delivery rates up to 650 l/min
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Air-Operated Diaphragm Pump FDM 50
For flow rates up to 650 l/min
The FDM 50 diaphragm pump pumps low- to high-viscosity fluids at a flow rate of up to 650 l/min.
The injection-moulded version is self-priming, dry-run-proof and suitable for abrasive fluids, solids and liquids with a high gas content.

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For use in potentially explosive atmospheres in accordance with the ATEX Directive 2014/34/EU.
| Feature | Typ | Ex | Pump Housing | Diaphragm | Ball seat | Hub | Seal | Weight | Part No. |
|---|---|---|---|---|---|---|---|---|---|
| FDM 50 AL/NN | Aluminium | NBR | NBR | NBR | – | 41,5 kg | 10-M50 10 200 | ||
| FDM 50 AL/TT | Aluminium | PTFE | PTFE | PVDF | PTFE | 41,5 kg | 10-M50 10 300 | ||
| FDM 50 S/TT | Stainless steel | PTFE | PTFE | PVDF | PTFE | 68,0 kg | 10-M50 20 300 | ||
| FDM 50 GG/TT | Grey cast iron | PTFE | PTFE | PVDF | PTFE | 66,9 kg | 10-M50 30 300 |
Downloads
Documentation for planning, operation and maintenance.
Operating Instructions
Operating instructions for all FLUX products.
DownloadData Sheets
Technical specifications, dimensions, and performance data for all FLUX pumps and motors.
DownloadPerformance Curves
Flow rate, head, and performance curves for precise pump selection.
DownloadDimension Sheets
Dimensions and installation dimensions for technical planning and design.
DownloadCertificates & Evidence
Declarations of conformity, ATEX/IECEx certificates, as well as ISO, REACH, and other certifications.
DownloadQuestionnaires
Download questionnaires for FLUX pumps, filling units and conveying systems. For precise technical assessment and quotation preparation.
DownloadBrochures
Product brochures and company information to browse and download.
DownloadProduct Catalog
The complete FLUX catalog, featuring all product lines, technical specifications, and accessories.
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