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SRPS EN ISO 21049:2011

Pumps - Shaft sealing systems for centrifugal and rotary pumps (ISO 21049:2004)

Aug 29, 2011

General information

90.92     May 14, 2007

90.00    May 14, 2012

ISS

B082

European Norm

21.140     23.080     23.100.60     83.140.50  

English  

From plan 2011

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Scope

ISO 21049:2004 specifies requirements and gives recommendations for sealing systems for centrifugal and rotary pumps used in the petroleum, natural gas and chemical industries. It is applicable mainly for hazardous, flammable and/or toxic services where a greater degree of reliability is required for the improvement of equipment availability and the reduction of both emissions to the atmosphere and life-cycle sealing costs. It covers seals for pump shaft diameters from 20 mm (0,75 in) to 110 mm (4,3 in).
ISO 21049:2004 is also applicable to seal spare parts and can be referred to for the upgrading of existing equipment. A classification system for the seal configurations covered by ISO 21049:2004 into categories, types, arrangements and orientations is provided.

Life cycle

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PUBLISHED
SRPS EN ISO 21049:2011
90.92 Standard to be revised
May 14, 2007

Related project

Adopted from EN ISO 21049:2004

Adopted from ISO 21049:2004 IDENTICAL