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| Russian | English |
| объёмный расход воды в кубометрах в час | KV value (Kv value is the metric measure for the flow of a valve. It is defined as: The volume flow in cubic metres per hour of water at a temperature of between 5° and 40° celsius with a pressure drop across the valve of 1 bar. Источник:  duncanrogers.com IgBar) |