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NBN ISO 21159:2020
Ships and marine technology — Butterfly valves for use in low temperature applications — Design and testing requirements
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Summary
This document specifies requirements for design, manufacture, and test methods of cryogenic butterfly valves in order to have an excellent quality leakage stability in a very low temperature service (-196 °C to 80 °C).
It is applicable to valves of nominal sizes: DN: 80, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600 corresponding to nominal pipe size (NPS): 3, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24.
It is applicable to valves of nominal sizes: DN: 80, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600 corresponding to nominal pipe size (NPS): 3, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24.
Technical characteristics
| Publisher | Bureau de Normalisation Belge (NBN) |
| Publication Date | 07/29/2020 |
| Page Count | 24 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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