DIN 7647 is Compression couplings with spherical liner - Male stud compression couplings
DIN 7647 standard is included in DIN Handbook 348. Specifies dimensions and requirements for male stud compression couplings ('couplings', for short) which are used for pipe joint assemblies with spherical liner as specified in DIN 3863.
Standard references:
DIN 7601 : 1998 COMPRESSION COUPLINGS WITH BALL-TYPE NIPPLES - COMPLETE UNIONS AND SURVEY
DIN HDBK 348 : 3ED 2015
DIN 3850 : 1998 COMPRESSION FITTINGS - SUMMARY
ISO 4042 : 1999 FASTENERS - ELECTROPLATED COATINGS
DIN 3859 : 1984 COMPRESSION FITTINGS; TECHNICAL TERMS OF DELIVERY
DIN 3852-1 : 2014 STUD ENDS AND PORTS OF FITTINGS, VALVES AND PLUG SCREWS - PART 1: DIMENSIONS FOR METRIC FINE PITCH THREAD
ISO 1302 : 2002(R2012) GEOMETRICAL PRODUCT SPECIFICATIONS (GPS) - INDICATION OF SURFACE TEXTURE IN TECHNICAL PRODUCT DOCUMENTATION
DIN 4768 : 1990 DETERMINATION OF SURFACE ROUGHNESS VALUES OF THE PARAMETERS R[A], R[Z], R[MAX] BY MEANS OF ELECTRICAL CONTACT (STYLUS) INSTRUMENTS; TERMINOLOGY, MEASURING CONDITIONS
DIN 3853 : 2001 NON-SOLDERING AND SOLDERING COMPRESSION FITTINGS - STUD ENDS FOR USE WITH UNION NUT; DESIGN SHEET
DIN 1651 : 1988 FREE-CUTTING STEELS - TECHNICAL DELIVERY CONDITIONS
DIN 3863 : 2003 COMPRESSION COUPLINGS - SPHERICAL LINERS - DESIGN AND TYPES OF PORT END U AND Y
