N 680.1.2 Ex Explosion-proof Pump

Safe emission protection and product recovery in processes handling explosive media

Strict regulations are in place for the processing and distribution of explosive gases. KNF meets current standards with a new ex-proof pump. The N 680.1.2 belongs to a small group of pumps which run oil-free and which are ATEX-compliant in their performance category to be used for emission protection and product recovery.

Features & Benefits

These are the main advantages of the N 680.1.2 Ex:

High chemical resistance
Durable even with difficult operating conditions
High gas tightness up to 6 x 10^-3 mbar x l/s as a standard
Flameproof motor with intrinsically safe terminal box for simple installation
Explosion protection three-phase motor: Ex II 2G Ex db eb IIC T4 Gb
Explosion protection pump parts: Ex II 2/2G Ex h IIB+H2 T3 Gb

The N 680.1.2 Ex combines the safety of an explosion-proof diaphragm pump with KNF’s trusted reliability and high-quality, low-maintenance performance

Get an Overview of our Explosion-proof Pumps in Emission Protection and Product Recovery

At our live webinar at ACHEMA Pulse 2021 Felix Ullrich, Product & Application Manager Germany at KNF, spoke about "Overcome typical obstacles of valid extractive gas analysis with flexible gas sampling pumps".

The focus on the webinar is about the following:
Constant sample air volume and uncontaminated samples are the prerequisites of valid extractive gas analysis. However, these are influenced by the process related requirements in regard to the employed measurement technology, the characteristics of sample gases as well as the aging of gas sampling pumps. Based on the experience from an installed basis of thousands of gas sampling pumps for emission analysis and process control, we use this presentation to highlight why specifically the flexibility of gas sampling pumps is key to overcoming these obstacles.
We focuse on enhanced dynamics of gas sampling pumps by means of integrating them into the process control systems and, on the other hand, targeting the design of the pump components at the requirements of the respective process technology.

Overcome typical obstacles of valid extractive gas analysis with flexible gas sampling pumps - Webinar at ACHEMA Pulse 2021

- How to deal with condensate in the Ex-area?
- How to handle process-related changes to pressure conditions in gas sampling tubes?
- How to master highly reactive and aggressive gases?
- How can a constant gas flow with gas sampling pumps be ensured even with special conditions?

Gas Sampling Pumps in Process and Emission Monitoring Systems - Joint Webinar by AGT-PSG and KNF

Where to use diaphragm pumps to be crucial for processing media

Possible Areas of Use

Consistently accurate results are essential in process gas measurement technology and in analytical measuring devices used for environmental protection and facility management. Their meticulously designed components make KNF pumps ideal for these demanding applications.

The Right Fit for Your Need

The N 680.1.2 Ex combines the safety of an explosion-proof diaphragm pump with KNF’s trusted reliability and high-quality, low-maintenance performance. Highly chemically resistant, the N 680.1.2 Ex transfers explosive gases and vapors.

Familiarize yourself with the technical details of our N 680.1.2 Ex:

N 680.1.2 Ex – Two-headed Diaphragm Gas Pump with Parallel Connections

Flow rate (max.): 220 l/min

Operating pressure (max.): 3 bar (rel.)

Ultimate Vacuum (max.): 150 mbar (abs.)

Get all technical details here

N 680.1.2 Ex – Two-headed Diaphragm Gas Pump with Parallel Connections

Modular System Options

Every application is different and some are one of a kind. By selecting and combining a variety of options, ranging from the material used to make the pump components that come into contact with the media, to the drive and the mechanical elements such as the circuit point and connections, it is easy to tailor every series model to meet application-specific requirements.

The following pump parts of the N 680.1.2 Ex can be customized by our modular system:

Diaphragm

▪ PTFE
▪ EPDM

Let Us Know Your Specifications!

We implement your specifications carefully and precisely. This means you get a diaphragm pump that meets the requirements of your process, your operating conditions and the properties of the process medium. We would also be happy to discuss options for providing out a sample pump.

Further Videos

How to service the N 680.1.2 Ex explosion-proof pump series

Checking and replacing the sprocket on coupling of the N 680.1.2 Ex explosion-proof pump

Circular arrangement of various icons for pump services

Flexible support from start to finish – your added value is our priority

KNF modular system exemplified by the N 816 diaphragm vacuum pump

KNF Pumps: Reliable and Safe Where it Matters Most

From sample gas pumps for analyzing process gases to emissions monitoring, the transfer of highly explosive media and the recovery of valuable gases, KNF's solutions are used wherever it is crucial for processing media to be handled with special care. When it comes to implementing KNF diaphragm pumps that are tailored precisely to your process and operating conditions, your specifications set the benchmark right down to the smallest detail.

For more information about our most recent innovations for gas analysis, emission measurement and industrial processes, please feel free to have a look on our application page.

KNF Modular System

Flexible, custom-fit, cost-effective – from standard to high-end

Every application is different and some are one of a kind. Our modular system is designed to give you a high degree of flexibility, speed and reliability. You can be sure that every gas and liquid pump supplied by KNF will exactly meet your requirements, no matter how complex or unusual these might be.

Learn more