N 630 Ex Double Diaphragm Series
Flow rate (at atm. pressure)
Two-Fold Safety with ATEX Compliance
Double diaphragm models in KNF N 630 Ex combine the safety enhancements offered by the specialized two-fold membrane structure with ATEX-compliant explosion protection.
These models can work reliably with dangerous, noble, or rare gases in a potentially explosive atmosphere.
|N 630__.12 E Ex||One-headed vacuum pumps and|
|N 630.3__.12 E Ex||Two-headed vacuum pumps,|
|N 630.1.2__.12 E Ex||Two-headed vacuum pumps,|
An optional, external sensor is available to monitor the status of the working diaphragm, reducing possible workspace risks for customers.
Robust, Durable, and Quiet
In addition to the excellent chemical resistance and exceptional gas tightness (5 × 10-5 mbar × l/s as a standard), these ex-proof models also feature the same affixed base rails with shock mounts as their N 630 siblings — well minimize noise and vibration.
Certified with Directive 2006/42/EC
A terminal box in the flameproof motor is available for easier installation and safer operation. All N 630 Ex models fulfill the criteria for completed machinery according to directive 2006/42/EC, therefore come with the CE mark.
KNF Modular System permits timely custom-tailored solutions. Please contact us to learn more.
Flow rate l/min at atm. pressure 68 Ultimate vacuum mbar abs. 120 Operating pressure bar g 4 Permissible media temperature °C +5° to +40°C Permissible ambient temperature °C +5° to +40°C Explosion protection - three-phase motor Ex II 2G Ex de IIC T4 Gb Explosion protection - pump parts Ex II 2G Ex h IIB+H2 T3 Gb
- Pump head: stainless steel
- Diaphragm: PTFE-coated
- Valves: stainless steel