ISO DIS 17602

Description / Abstract: This international standard specifies the basic series of face-to-face or centre-to-face dimensions for two-way metal valves used in flanged pipe systems for ship and marine services. Each series of face-to-face or centre-to-face dimensions may be used as required with flanges of mating dimensions conforming to ISO 7005-1:2011, ISO 7005-2:1988 and ISO 7005-3:1988 or other national standards.

The range of pressure ratings, in "K" values, is 5 - 10 - 16 - 20 - 30- 40 and those specified in ISO 5752:1982.

The range of nominal sizes, in "DN" or "A" values, is 15 - 20 - 25 - 32 - 40 - 50 - 65 - 80 - 100 - 125 - 150 - 200 - 250 - 300 - 350 - 400 - 450 - 500 - 550 - 600 - 650 - 700 - 750 - 800 - 900 - 1000 - 1200.

Pressure rating may differ by valve materials, sizes and types. Reference shall be made to relevant product standards. For details of pressure temperature ratings of K-series flanges, refer to JIS Standards in the bibliography of this international standard. JIS F7300 "Shipbuilding-Application for valves and cocks" specifies a comprehensive guide for selection of valves listed in the tables 1 to 5.