NBN ISO 22484:2025

< p class=" MsoBodyText" > < span lang=" EN-GB" > This document specifies the performance test method of electrically driven low-pressure air compressor packages, where the compression is performed by positive displacement or dynamic compression utilising atmospheric air as the compression gas. Low-pressure air compressor packages are often referred to as “blowers”.< / span>

< p class=" Note" > < span lang=" EN-GB" > NOTE< span style=" mso-tab-count: 1 " >             < / span> Throughout this document, the term ‘low-pressure compressor’ is used to describe a low-pressure air compressor (“blower”) package< / span>

< p class=" MsoBodyText" > < span lang=" EN-GB" > Low-pressure compressors with and without means of controlling flow (control may be electrical (e.g. with a variable frequency drive) or mechanical or both) are covered.< / span>

< p class=" MsoBodyText" > < span lang=" EN-GB" > This document applies to low-pressure compressors meeting all the following limits:< / span>

< p class=" ListContinue1" style=" mso-list: l0 level1 lfo1 " > < !-- [if !supportLists]--> < span lang=" EN-GB" style=" mso-fareast-font-family: Cambria mso-bidi-font-family: Cambria " > < span style=" mso-list: Ignore " > —< span style=" font: 7.0pt ' Times New Roman' " >      < / span> < / span> < / span> < !--[endif]--> < span lang=" EN-GB" > Atmospheric inlet air pressure between 0,5 bar and 1,1 bar.< / span>

< p class=" ListContinue1" style=" mso-list: l0 level1 lfo1 " > < !-- [if !supportLists]--> < span lang=" EN-GB" style=" mso-fareast-font-family: Cambria mso-bidi-font-family: Cambria " > < span style=" mso-list: Ignore " > —< span style=" font: 7.0pt ' Times New Roman' " >      < / span> < / span> < / span> < !--[endif]--> < span lang=" EN-GB" > Discharge vs inlet pressure differential between 0,1 bar and 2,5 bar.< / span>

< p class=" ListContinue1" style=" mso-list: l0 level1 lfo1 " > < !-- [if !supportLists]--> < span lang=" EN-GB" style=" mso-fareast-font-family: Cambria mso-bidi-font-family: Cambria " > < span style=" mso-list: Ignore " > —< span style=" font: 7.0pt ' Times New Roman' " >      < / span> < / span> < / span> < !--[endif]--> < span lang=" EN-GB" > Discharge vs inlet pressure ratio between 1,1 and 3,5.< / span>

< p class=" MsoBodyText" > < span lang=" EN-GB" > This document is not applicable to:< / span>

< p class=" ListContinue1" style=" mso-list: l0 level1 lfo1 " > < !-- [if !supportLists]--> < span lang=" EN-GB" style=" mso-fareast-font-family: Cambria mso-bidi-font-family: Cambria " > < span style=" mso-list: Ignore " > —< span style=" font: 7.0pt ' Times New Roman' " >      < / span> < / span> < / span> < !--[endif]--> < span lang=" EN-GB" > positive displacement low-pressure compressors with a liquid in the compression element (such as liquid ring pumps and liquid injected low-pressure compressor of screw type)< / span>

< p class=" ListContinue1" style=" mso-list: l0 level1 lfo1 " > < !-- [if !supportLists]--> < span lang=" EN-GB" style=" mso-fareast-font-family: Cambria mso-bidi-font-family: Cambria " > < span style=" mso-list: Ignore " > —< span style=" font: 7.0pt ' Times New Roman' " >      < / span> < / span> < / span> < !--[endif]--> < span lang=" EN-GB" > multi-stage low-pressure compressors other than multistage centrifugal compressors comprised of multiple, identical or very similar uncooled sections along a single shaft (repeating stages).< / span>

< p class=" ListContinue1" style=" mso-list: l0 level1 lfo1 " > < !-- [if !supportLists]--> < span lang=" EN-GB" style=" mso-fareast-font-family: Cambria mso-bidi-font-family: Cambria " > < span style=" mso-list: Ignore " > —< span style=" font: 7.0pt ' Times New Roman' " >      < / span> < / span> < / span> < !--[endif]--> < span lang=" EN-GB" > single shaft, multistage centrifugal compressors are treated from the point of measurement and calculation as a single stage< / span>