
FDM 25 Pneumatic Diaphragm Pump
For flow rates up to 178 l/min
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Air-Operated Diaphragm Pump FDM 25
For flow rates up to 178 l/min
The FDM 25 diaphragm pump pumps low- to high-viscosity fluids at a flow rate of up to 178 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 | Hub | Seal | Weight | Part no. |
|---|---|---|---|---|---|---|---|---|---|
| FDM 25 AL/NN | Aluminium | NBR | NBR | AL | NBR | 8,6 kg | 10-M25 10 000 | ||
| FDM 25 AL/TT | Aluminium | PTFE | PTFE | AL | PTFE | 8,6 kg | 10-M25 10 100 | ||
| FDM 25 S/TT | Stainless steel | PTFE | PTFE | Stainless steel | PTFE | 14,0 kg | 10-M25 20 100 |
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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