ISO 15171-2:2016规定了带有M16×2连接端的诊断联轴器的尺寸、性能要求和测试程序，该连接端可在无需工具的压力下连接至最大压力为40 MPa（400 bar），前提是提供以下螺柱端: ?ISO 6149？2？M14×1,5； ?ISO 9974？2？M14×1,5； ?ISO 1179？2？G 1/4； ?ISO 11926？2？7/16-20 UNF。 规定了耦合器对应件的尺寸。联轴器设计用于使用矿物油的液压系统。 注:将该联轴器用于除矿物油以外的流体时，需要供应商和买方之间达成协议。 符合ISO 15171本部分要求的联轴器可在63 MPa（630巴）的最大工作压力下使用。工作压力取决于材料、设计、工作条件、应用等。

ISO 15171-2:2016 specifies dimensions, performance requirements, and test procedures for diagnostic couplings with an M16 × 2 connection end that can be connected under pressure without tools to a maximum pressure of 40 MPa (400 bar) providing following stud ends: ?ISO 6149？2?M14 × 1,5; ?ISO 9974？2?M14 × 1,5; ?ISO 1179？2?G 1/4; ?ISO 11926？2?7/16-20 UNF. The dimensions of the coupler counterpart are specified. The coupling is designed for use in hydraulic systems that use mineral oils. NOTE The use of this coupling with fluids other than mineral oil requires an agreement between the supplier and the purchaser. Couplings in accordance with this part of ISO 15171 may be used at a maximum working pressure of 63 MPa (630 bar). The working pressure depends upon the materials, design, working conditions, application, etc.