E 929Eh00 E06T5h 5941-79 (iso 5941 International Standard -0S-0! INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEXAYHAPOAHAA OPIAHM3AUMA HO CTAHAAPTW3ALWM-ORGANISATION INTERNATIONALE DE NORMALISATION Compressors, pneumatic tools and machines - Preferred pressures Compresseurs, outils et machines pneumatiques -- Pressions preferentielles First edition -- 1979-09-15 UDC 621.51/.54 :532.11 ISO 5941-1979 (E) Ref. No. ISO 5941-1979 (E) Descriptors : compressors, pneumatic equipment, pressure Price based on 2 pages Copyright by the International Organization For Standardization 5941-79 5 22Eh00 E06T59h Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards institutes (Iso member bodies). The work of developing Interna- interested in a subject for which a technical committee has been set up has the right to governmental, in liaison with iso, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the Iso Council. International Standard ISO 5941 was developed by Technical Committee ISO/TC 118, Compressors, pneumatic tools and pneumatic machines, and was circulated to the member bodies in July 1978. It has been approved by the member bodies of the following countries : Austria Hungary Romania Belgium India Sweden United Kingdom Czechoslovakia Ireland Finland Korea, Rep. of Yugoslavia France Netherlands Germany, F. R. Poland The member body of the following country expressed disapproval of the document on technical grounds : Australia @ International Organization for Standardization, 1979: Printed in Switzerland b2-thbs 2E00 E06T5h INTERNATIONAL STANDARD ISO 5941-1979 (E) Compressors, pneumatic tools and machines Preferred pressures O Introduction performance data for compressors, pneumatic tools and pneumatic machines. Components for compressed air systems In the field of fluid power systems and components, nominal should also be designed to meet the standardized pressures. pressures are already the subject of 1so 2944, in which all nominal pressures have been chosen between 0,1 and The stated pressures are effective (gauge) pressures, given in 1 000 bar1) as preferred and non-preferred values according to bars. the R 5 and R 10 series of preferred numbers in the compressor industry, with its de facto standardized rated 2 References pressures for some fields of application, deviations from the ideal series must be accepted. The two deviations are : Is02787,Rotary andpercussivepneumatic tools-Accep- tance tests. 7 bar (~ 100 Ibf/in2 gauge); ISo 2944, Fluid power systems and components - Nomina! 18 bar ( ~ 250 lbf /in2 gauge). pressures. In addition, only one pressure, 12,5 bar, has been taken from the non-preferred values in the range given in ISo 2944. The 3 Definitions standardized rated pressure range for the compressor field thus contains only half as many values as the range for the fluid For the purposes of this International Standard, the following power field, which must be considered as an advantage. definitions apply : The range of design pressures given for pneumatic tools and 3.1 rated pressure (for compressors) : A pressure in the machines is very imited and concentrated on those which are range specified in this International Standard to meet the users' de facto standardized by usage. and manufacturers' needs for established pressure levels bet- ween 0,4 and 400 bar. If a manufacturer has to choose a design pressure outside the standard range for a new tool or a new application, the range of NOTE -- It can be presumed that a compressor has its optimal or near rated pressure for compressors may be used for guidance. optimal performance at its rated pressure 3.2 design pressure (for pneumatic tools or pneumatic Scope and field of application machines) : The pressure at which the tool or machine is nor- mally intended to be us