KNF UN840.3 FTP Diaphragm Vacuum Pump Unit

sku: 3369490
1 In Stock
Condition : Pre-owned
Warranty : 30-Day Warranty, 100% Parts and Labor
Region : US
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  • Make KNF
  • Hertz 60Hz
  • Model UN840.3 FTP
  • Serial 1/898291
  • Weight 36
  • Voltage 120V
  • Working Working
  • Includes Power Cord
  • Warranty 30-Day Warranty, 100% Parts and Labor
  • Dimensions 21×14×17 in
  • Shipping Type FedEx Ground
  • Item Condition Pre-owned
  • Manufacturing Date 04/06

The chemically-resistant series N 840 and N 840.3 diaphragm pumps are single- and double-head, dry-running devices used in a wide range of laboratory applications. They transfer and pump down without contamination. The heart of these very compact pumps is a KNF structured
diaphragm. This patented diaphragm was stress-optimized using the Finite Elements method. As a result, we were able to make the pumps smaller while increasing the service life of the diaphragm.

Technical Features:

• 100% oil-free transfer
• Pure transferring and evacuation of gases
• Highly compatible with vapors and condensation
• Chemically-resistant
• Suitable for highly aggressive or
corrosive gases and vapors
• Maintenance-free


Manufacture Specifications

Flow rate at atm. pressure


Ultimate vacuum

6 mbar

Operating pressure

15 psig

Connectors for tube

3/8 in

Permissible media and ambient temperature

+5 … +40 °C



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