Flow rate (at atm. pressure)

Up to




Down to


mbar abs.


Up to


bar g

KNF N 630.3
Two-Headed Vacuum Pump with Serial Connections

KNF N 630.3 is the two-headed vacuum pump with serial connections in the N 630 product lineup, providing a flow rate of up to 35 l/min, an ultimate vacuum down to 25 mbar abs., and a pressure of up to 0.5 bar g.

Robust, Durable, and Feature-Rich

Offering excellent chemical resistance, high-level gas tightness, and low sound levels, the N 630.3 can start against the entire pressure and vacuum range, and is very durable even in heavy-duty operating environments.

With an optional water cooling system, the permissible media and ambient temperature range can extend to 60 °C / 140 °F. A motor option that works with a variable frequency drive is also available.

The N 630.3 also offers double diaphragm models for better gas leakage prevention. Feel free to contact us to learn more.

  • Flow rate l/min at atm. pressure35
    Ultimate vacuum mbar abs.25
    Operating pressure bar g0.5
    Protection class - motor IP 55
    Protection class - pump IP 20
    • Pump head: stainless steel
    • Diaphragm: PTFE-coated/EPDM
    • Valves: stainless steel

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