ISO 7259-1988 地下用的按钮操纵的铸铁闸阀

标准号：ISO 7259-1988
中文标准名称：地下用的按钮操纵的铸铁闸阀
英文标准名称：Predominantly key-operated cast iron gate valves for underground use
标准类型：J16
发布日期：1999/12/31 12:00:00
实施日期：1988/12/15 12:00:00
中国标准分类号：J16
国际标准分类号：23.060.30
适用范围：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.