Ссылочный номер
ISO 7259:1988
ISO 7259:1988
Predominantly key-operated cast iron gate valves for underground use
Версия 1
1988-12
В время отменен
ISO 7259:1988
13914
Отозвано (Версия 1, 1988)

Тезис

Specifies requirements for two types of predominantly key-operated valves for underground use with flanges or spigot ends or socket ends. The two types shall be specified as type A or type B and shall include the following features: inside screw stem; wedge or parallel obturator; metallic or elastomeric obturator seatings; metallic or elastomeric body seatings; ferrous metal and/or copper alloy trims; T-key operation; ring key and bar operation. Type A valves are for T-key operation; type B valves are for ring key and bar operation.

Общая информация

  •  : Отозвано
     : 1988-12
    : Отмена международного стандарта [95.99]
  •  : 1
  • ISO/TC 153
  • RSS обновления

Жизненный цикл

Появились вопросы?

Ознакомьтесь с FAQ