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BS EN ISO 4230:2016 pdf free

BS EN ISO 4230:2016 pdf free.Hand-and machine-operated circular screwing dies for taper pipe threads一R series
This International Standard is a supplement to ISO 2568 and ISO 4231 and specifies the dimensions of hand- and machine-operated circular screwing dies intended for production of taper pipe threads,R series, in accordance with ISO 7-1.
With the exception of the die 1/16, the general dimensions of these dies (diameter, thickness and fixing dimensions) are in accordance with ISO 2568 so as to permit the driving of hand-operated dies with the aid of the die stocks defined in that document.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 2568, Hand- and machine-operated circular screwing dies and hand-operated die stocks
3 Dimensions
The general dimensions are shown in Figure 1 and given in Table 1.
Dies in accordance with this International Standard shall be marked with the letter R, immediately followed by the designation of the thread.
EXAMPLE An R series taper thread screwing die with designation 3/4 is marked as follows:
Where tools comply in all respects with the relevant International Standards, the Symbol ISO may be appended to the mark at the discretion of the manufacturer.
For the relationship between the designations in this International Standard and preferred symbols according to ISO 13399, see Table A.1.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,Turkey and the United Kingdom.BS EN ISO 4230 pdf free download.

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