90.20 Standard under periodical review Apr 15, 2024
ISO
ISO/TC 153 Valves
International Standard
23.060.01 Valves in general
Specifies dimensions for a range of steam traps used in flanged pipe systems, and gives definitions. The six basic series of dimensions for flanged steam traps, expressed in millimetres, are given in a table for the nominal sizes ranging from DN 15 to DN 50 inclusive, and for pressures to PN 40 inclusive.
PUBLISHED
ISO 6554:1980
90.20
Standard under periodical review
Apr 15, 2024