BS 6283-4:1982

Заменен

Safety devices for use in hot water systems, Specification for drop-tight pressure reducing valves of nominal size up to and including DN 54 for supply pressures up to and including 12 bar

Описание Изменения Ссылки Версии

Заменен на

BS 6283-4:1991

ICS

91.140.60 Water. Including water meters in buildings / Системы водоснабжения. Включая счетчики воды в зданиях