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Sample gas pumps optimized for use
with high-purity oxygen
Applications with oxygen: Free from particles, oil and grease
For use with high-purity oxygen, the product requires special cleaning to ensure that it is free
from oil and grease, as oxygen is a strong oxidising agent. Under unfavourable conditions, oxy-
gen can cause spontaneous combustion of organic substances such as particles, oils and fats, and
generally promotes the combustion of substances. Oils and fats can even react explosively on con-
tact with oxygen. We use special cleaning and production processes to ensure the safe use of our
products with high-purity oxygen and avoid the above-mentioned undesirable reactions.
With this declaration, we confirm that all surfaces of the following products that come into con-
tact with media have been cleaned and manufactured in accordance with the requirements of
EIGA Doc 33/18 and VDA Volume 19.
Product:
Models:
Item no.:
For the "O2" measuring gas pumps, only materials that have been tested by the Federal Institute
for Materials Research and Testing (BAM) for oxygen applications, taking into account the relev-
ant application parameters, are used for the components in contact with the medium.
All components in contact with the medium undergo a special cleaning process to reliably remove
impurities (such as oil, grease and particles). This process is documented by a comprehensive de-
livery specification to the service provider and compliance with the limit values is verified with
regular analyses by an independent, accredited laboratory.
The contamination limits of the surfaces in contact with media are defined as follows (as in EIGA
Doc 33/18 Cleaning of Equipment for oxygen service):
Non-volatile organic or inorganic
impurities:
Particles:
The "O2" measuring gas pumps are manufactured in a structurally separated clean room in ac-
cordance with VDA Volume 19.
Compliance with the production and assembly specifications is documented by the trained spe-
cialist by means of a test report. After cleaning, the sample gas pumps are packed in airtight and
dustproof packaging and clearly labeled "Cleaned for oxygen service. Do not open until ready for
use".
All described cleaning properties are lost if the product comes into contact with oily or greasy me-
dia or is otherwise contaminated from the outside.
BE420025
02/2024
page 1 / 1
Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen
Tel. +49 (0) 21 02 / 49 89-0, Fax: +49 (0) 21 02 / 49 89-20
E-Mail: analyse@buehler-technologies.com
Internet: www.buehler-technologies.com
Sample gas pumps
P2.x ATEX-O2
P2.x AMEX-O2
P1.3-O2
42 .............-O2
Contamination limits
≤ 220 mg/m² for non-volatile impurities
2
≤ 22 particles/m
between 500 μm and 1000 μm
Gas Analysis
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