ISO 3069:2000 PDF

Scope: This International Standard specifies the dimensions of the seal cavity for step-balanced mechanical seals, mechanical seals suitable for straight shafts, and for soft packing, to be used with horizontal end-suction centrifugal pumps, including those conforming to ISO 2858. Although applicable to general-purpose and heavy-duty process applications, this International Standard is not intended for use in processes with slurries or with high levels of solids. This International Standard offers two options: a) a range of stuffing boxes suitable for soft packing or mechanical seals for general-purpose duties up to a seal chamber limit of a gauge pressure of 16 bar; b) a range of larger cavities suitable for mechanical seals, including cartridge mechanical seals, for general and heavy-duty process applications, up to a seal chamber limit of a gauge pressure of 40 bar.

ISO 3069:2000 Referenced Document

EN 12756 Mechanical seals - Principal dimensions, designation and material codes*， 2024-04-17 Update
ISO 5199 Technical specifications for centrifugal pumps - Class II*， 2002-03-01 Update
ISO 9905 Technical specifications for centrifugal pumps - Class I - Technical Corrigendum 1*， 2005-02-01 Update
ISO 9908 Technical specifications for centrifugal pumps — Class III AMENDMENT 1

2000 ISO 3069:2000 End-suction centrifugal pumps - Dimensions of cavities for mechanical seals and for soft packing
1974 ISO 3069:1974 End suction centrifugal pumps; Dimensions of cavities for mechanical seals and for soft packing