ISO 80079-36 AND ISO 80079-37 REPLACE EN 13463

with Stephan Näckel, Director of Engineering


What exactly does this mean for the plant operator? Stephan Näckel, Director of Engineering at Rheinhütte Pumpen, answers this and other questions in this interview.

Trade media talk of the “new ISO standards“, the “new ATEX directive” – what exactly is new about this, and what has changed?

S. Näckel: „The ATEX Directive 2014/34/EU itself is not new. It‘s a formal legal adaptation of the familiar 94/9/ EC to the Lisbon Treaty (European Constitution). This has been in force since April 2016. The requirements are the same as for the old directive, with only a few annexes amended, and the directive has been given new numbering.
What is new are ISO 80079-36 and 80079-37. They were created on the basis of the CEN standard EN 13463 Parts 1 to 8. In terms of content, there are no fundamental differences with regard to relevant explosion protection aspects. The new standards differ mainly in formal points resulting from the special requirements of international standards, for example the system for equipment categorisation and labelling.
The new ISO standards will replace the previously valid EN standards after a transitional period. The transitional period for the “old” EN 13463 standards expires in October 2019.“

What significance do these changes have for RHEINHÜTTE Pumpen?

S. Näckel: „As a pump manufacturer, we need these new ISO 80079-36 and 80079-37 standards to implement ATEX.
Like their predecessors, the new standards are so-called harmonised standards for the ATEX directive and undergo the conformity assessment procedure.
“They attract the presumption of conformity which is helpful for conformity assessment”, meaning that if a product meets the requirements of the harmonised standard, it also meets the requirements of the relevant EU directive. A manufacturer therefore bases his declaration of conformity on these standards.
RHEINHÜTTE Pumpen will change its conformity assessments for all horizontal and vertical pumps in early 2018 – well before the end of the transitional period.“

What does the plant operator need to consider?

S. Näckel: „The conformity assessment procedure is the sole responsibility of the manufacturer.
The new labelling of pumps is of importance to our customers. For example, in the case of a pump in Zone 1, IIB T3 pursuant to DIN EN 13463, label II -/2G ck IIB T3 applies and, pursuant to ISO 80079, the label II -/2G Ex h IIB T3 Gb. Temperature classes T1 to T6 are retained.“

Do our customers need new pumps or spare parts?

S. Näckel: „No, there‘s no need to replace pumps or components that have met the previous requirements of 94/9/ EC. But installed pumps are reviewed at the operator‘s premises as part of the „periodic inspections“ and checked to ensure their safety. Any retrofitting that needs to be done should be arranged by the operator.
When it comes to new orders, the manufacturer can base the declaration of conformity on EN 13463ff until the validity of this standard expires in October 2019. However, Rheinhütte Pumpen will already switch declarations of conformity to the ISO 80079-36 and -37 standards at the beginning of 2018. We have taken this decision in the interests of our customers who, as a result, will receive declarations of conformity in the latest version.“

RHEINHÜTTE Pumpen GmbH is a sought-after expert for demanding pump applications worldwide. Experience in the design of pumps for conveying abrasive, corrosive and toxic media, product innovations and the supreme product quality make Rheinhütte pumps a proven component of many major plants – worldwide.

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