標準號：ISO 7259-1988
中文標準名稱：地下用的按鈕操縱的鑄鐵閘閥
英文標準名稱：Predominantly key-operated cast iron gate valves for underground use
標準類型：J16
發布日期：1999/12/31 12:00:00
實施日期：1988/12/15 12:00:00
中國標準分類號：J16
國際標準分類號：23.060.30
適用范圍：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.