涵盖单级，多级，水平或垂直结构（耦合或紧耦合）的离心泵与任何驱动器和任何安装用于一般应用的III类要求。包括与这些泵的安装，维护和安全相关的设计特征，包括底板，联轴器和辅助管道，但不包括驱动器，如果它不是泵的组成部分

Covers class III requirements for centrifugal pumps of single stage, multistage, horizontal or vertical construction (coupled or close-coupled) with any drive and any installation for general application. Includes design features concerned with installation, maintenance and safety of such pumps including baseplate, coupling and auxiliary piping but excluding the driver, if it is not an integral part of the pump.