BS ISO 5783:2019 pdf free.Hydraulic fluid power一Code for identification of valve mounting surfaces and cartridge valve cavities.
4 Identification code The mounting surfaces or the cartridge cavities shall be designated by the five groups of numbers indicated below, written in the order given, and separated by spaced hyphens: a) the number of the International Standard in which the mounting surface or the cartridge cavity is described; . b) two numerals representing 一either the size of the valve mounting surface (see Clause 5), 一or the size of the slip-in cartridge valve (see Clause 5), 一or the cavity thread diameter of the screw-in cartridge valve; c) two numerals as an unequivocal numbering; NOTE In previous editions of this document these numerals were based on the figure number in the International Standard according to a). This could lead to confusion if figures in new versions of these International Standards are deleted and thus the numeral of a certain mounting surface or cavity would change. d) one sign, e.g. an asterisk [*) or a single number as defined in the International Standard according to a] indicating different options: 一numeral 0 is used for the basic version,0 basic version XX last two digits of the year of latest edition 6.2 Slip-in cartridge cavity Designation of the cavity for two-port hydraulic slip-in cartridge main system pressure-relief valves with main ports of 50 mm nominal diameter (size 11) and square flange cover as described in ISO 7368: 7368-11-10-1-xx In this designation, the elements have the following meaning: 7368 reference number of the relevant International Standard 11 size of the cavity according to the main port diameter (see Table 1 of this document) 10 unequivocal numbering according to ISO 7368 1 option number 1 XX last two digits of the year of latest edition 6.3 Screw-in cartridge cavity Designation of the cavity of three-port screw-in cartridge valves with 27 mm cavity thread diameter, such as described in ISO 7789: 7789- 27 – 04-0-xX In this designation, the elements have the following meaning: 7789 reference number of the relevant International Standard 27 thread diameter of screw-in cartridge 04 unequivocal numbering according to ISO 7789 basic version XX . last two digits of the year of latest edition.BS ISO 5783 pdf download.