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The N 840.3 FT.40.18 is a dual-stage, high-performance pump equipped with an innovative 'self-drying' system for automatic condensate drainage. Primarily used in laboratory settings, the SD series is ideal for environments dealing with humid vapors and where a clean, eco-friendly vacuum is desired. It commonly serves applications such as vacuum ovens (used for drying chemicals or biological samples, and conducting heat treatments), and autoclaves for sterilizing containers, instruments, filters, and textiles. Constructed with anti-corrosive materials, it is adept at handling even corrosive products.
At the core of the pump is the PTFE diaphragm, ingeniously structured to achieve excellent performance with compact dimensions and longevity, even under demanding applications.
When the pump pulls in humid gases, there can be condensation in the pump head, impacting performance by increasing the evacuation time. The 'self-drying system' addresses this concern by triggering a solenoid valve that allows ambient air to clear out the heads. After eradicating the condensation, the solenoid valve closes, and the pump resumes optimal operation. Should condensation reoccur, the cycle repeats. Both the duration of the air injection and the intervals between cycles can be customized based on requirement.
Technical Specifications:
Max Flow Rate: 34 l/min
Max Ultimate Vacuum: 10 mbar (abs.)
Max Pressure: 1 bar (rel.)
Acceptable Medium Temperature: 5-40°C
Valve Material: FFPM
Diaphragm Material: PTFE-coated
Pump Head Material: PTFE
Intended Applications:
Rotary Evaporation
Vacuum Oven
Key Features:
Clean, Oil-free Operation
Corrosion-resistant PTFE / FFPM pathway
Suitable for handling particularly aggressive or corrosive gases and vapors
Compact, Quiet, and Reliable Operation
The self-drying system effectively eliminates condensation without changing the vacuum level
No Maintenance Required
For additional details and accessories, kindly download the data sheet.
UNSURE ABOUT THE RIGHT VACUUM PUMPS FOR YOUR NEEDS?
Follow our KNF pumps guide: LABORATORY VACUUM PUMPS
Alternatively, download the comprehensive KNF guide: THE PERFECT DIAPHRAGM PUMP FOR EVERY APPLICATION.
External dimensions mm L x P x A | 189 x 239 x 341 |
Various | IP44 |
Absorption | 245W |
Weight kg | 12.9 |
Supply | 230V; 50Hz |
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