本文件规定了使用切割环和O形密封圈锥形接头（简称DKO）的24°锥形接头的一般要求和尺寸要求，该接头适用于外径为4 mm至42 mm（含4 mm）的黑色和有色金属管。这些连接器适用于本文件规定的压力和温度范围内的流体动力和一般应用。 根据ISO 6149-1、ISO 1179-1和ISO 9974-1，它们用于将平端管和软管配件连接至端口。（有关软管接头规格，请参见ISO 12151-2。） 这些接头在液压系统中提供全流量连接，工作压力如表1所示。由于许多因素会影响系统正常运行时的压力，因此这些值不能理解为保证的最小值。对于每种应用，用户和制造商都要进行充分的测试和审查，以确保达到所需的性能水平。 注1:有关液压传动应用中的新设计，请参见9.6中给出的要求。如果应用要求允许使用弹性密封件，则首选符合国际标准并包含弹性密封件的连接器设计。 注2:在规定的压力和/或温度极限之外的条件下使用，见5.4。 本文件还规定了这些连接器的性能和鉴定试验。

This document specifies the general and dimensional requirements for 24° cone connectors using cutting ring and O？ring seal cone (referred to as DKO) suitable for use with ferrous and non？ferrous tubes with outside diameters from 4 mm to 42 mm inclusive. These connectors are for use in fluid power and general applications within the limits of pressure and temperature specified in this document. They are intended for the connection of plain end tubes and hose fittings to ports in accordance with ISO 6149？1, ISO 1179？1 and ISO 9974？1. (See ISO 12151？2 for a related hose fitting specification.) These connectors provide full-flow connections in hydraulic systems operating to the working pressures shown in Table 1. Because many factors influence the pressure at which a system performs satisfactorily, these values are not intended to be understood as guaranteed minimums. For every application, sufficient testing is meant to be conducted and reviewed by both the user and manufacturer to ensure that required performance levels are met. NOTE 1 For new designs in hydraulic fluid power applications, see the requirements given in 9.6. Where the requirements of the application allow for the use of elastomeric seals, connector designs that conform to International Standards and incorporate elastomeric sealing are preferred. NOTE 2 For use under conditions outside the pressure and/or temperature limits specified, see 5.4. This document also specifies a performance and qualification test for these connectors.