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2.7
Potential explosive areas
Consideration of Conformity with the Directive 2014/34/EU (ATEX)
The lined and metallic valves of the brands Atomac and Durco produced by Flowserve Ahaus GmbH have
been examined according to DIN EN 13463-1 to determine the danger of ignition. Potential sources of
ignition coming from the valve itself have not been ascertained. This result was confirmed by the
Bundesanstalt für Materialforschung und -prüfung (BAM – Federal Office for Material Research and
Testing).
The valves are intended for usage in areas where explosive atmosphere will be present from time to time.
As no internal sources of ignition were determined, the following statements are valid:
• The valves do not fall within the scope of the Directive 2014/34/EU.
• A corresponding marking is not permissible.
The specifications and instructions of the corresponding Installation and Operation Manuals have to be
obeyed. We would like to point out that potential sources of ignition resulting from operating conditions
and/or the used medium fall under the responsibility of the operating company. These potential dangers
can be minimized or possibly excluded in cooperation with Flowserve with suitable modifications on the
valve e.g., by using conductive lining materials to prevent static charging of the mediums during operation.
2.8
Protective equipment
FLOWSERVE products are often used in problematic applications (e.g., extremely high pressures,
dangerous, toxic or corrosive mediums). In particular valves with bellows seals point to such applications.
When performing service, inspection or repair operations always ensure, that the valve is depressurised
and that the valve has been cleaned and is free from harmful substances. In such cases pay particular
attention to personal protective equipment (PSA) (protective clothing, gloves, glasses etc.).
3
Product Description
3.1
General product description
The AKH3.2M & AKH3.2F are 2-piece fully lined ball valves designed to meet ASME B16.34 requirements.
The face to face is per ASME B16.10 – short pattern with flanges per ASME B16.5 class 150, RF. The
maximum temperature rating is 200°C, refer to our pressure / temperature and vacuum / temperature graph
for more details.
The valve is available in 2 designs:
• AKH3.2M - Monobloc Unit with 1-piece ball and stem.
• AKH3.2F - Floating Ball with 2-piece ball and stem.
Both options offer a tight shut-off per API 598 and DIN EN 12266-1 (leakage rate A):
AKH3.2 User Instruction – FCD ATENIM0001 EN
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