N 680.1.2 Ex
Flow rate (at atm. pressure)
Robust and Reliable
The N 680.1.2 Ex is a new addition to the ATEX-compliant protection pumping solutions provided by KNF. Boasting a flow rate of up to 220 l/min, and an ultimate vacuum of down to 150 mbar abs., this pump can transfer explosive gases and vapors with a spectacularly high level of gas tightness — up to 6 × 10-3 mbar × l/s as a standard.
The IP 55, flame-proof motor comes with a terminal box, ensuring enhanced safety and easier installation.
Possible Areas of Use
The N 680.1.2 Ex is well-suited for applications requiring flammable gas recovery or particularly low gas leakage. For instance, petrochemistry industry, energy technology, process industry, chemical industry, environmental monitoring, maritime engine/emission monitoring, etc.
Flow rate l/min at atm. pressure 220 Ultimate vacuum mbar abs. 150 Operating pressure bar g 3 Permissible media temperature °C +5° to +40°C Permissible ambient temperature °C +5° to +40°C Voltage V 230/400 V Frequencies Hz 50 Hz Protection class - motor IP 55 Protection class - pump IP 20 Explosion protection - three-phase motor Ex II 2G Ex db eb IIC T4 Gb Explosion protection - motor [ST.9 E Ex] Ex II 2/2G Ex h IIB T3 Gb / [SP.9 E Ex] Ex II 2/2G Ex h IIB+H2 T3 Gb
- Pump head: stainless steel
- Diaphragm: PTFE/EPDM
- Valves: stainless steel