ISO 7259:1988 地下用的按钮操纵的铸铁闸阀

标准编号：ISO 7259:1988

中文名称：地下用的按钮操纵的铸铁闸阀

英文名称：Predominantly key-operated cast iron gate valves for underground use

发布日期：1988-12

标准范围

规定了地下使用的两种主要键控阀门（带法兰或插口端或承插端）的要求。这两种类型应指定为A型或B型，并应包括以下特征:内螺纹杆；楔形或平行闭孔；金属或弹性闭孔座；金属或弹性体座椅；黑色金属和/或铜合金饰件；T键操作；按键和按键操作。A型阀门用于T型键操作；B型阀门用于环键和杆操作。

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.

标准预览图