本标准描述了环形滑动法兰和盲法兰。法兰压力极限和描述它们的表格如下所示。环形滑动法兰（见表2、3和4）。盲法兰（见表5）。除非买方另有规定，制造商应选择要使用的类型。本标准中的法兰适用于符合ANSI/AWWA C200、ANSI/AWWA C208或其他同等标准要求的钢管、管件或附件。法兰应按照第2.1.2节的规定通过焊接连接。本标准的第4.3条。

This standard describes ring-type slip-on flanges and blind flanges. The flange pressure limits and the tables that describe them are1. Ring-type, slip-on flanges (see Tables 2, 3, and 4).2. Blind flanges (see Table 5). Unless otherwise specified by the purchaser, the manufacturer shall select the type to be used.Flanges in this standard are intended for use with steel pipe, fittings, or appurtenances meeting the requirements of ANSI/AWWA C200, ANSI/AWWA C208, or other equivalent standards. It is intended that flanges be attached by welding in accordance with Sec. 4.3 of this standard.