标准编号：ISO 14903:2017
中文名称：制冷系统和热泵 组件和连接件的密闭性鉴定
英文名称：Refrigerating systems and heat pumps — Qualification of tightness of components and joints
发布日期：2017-07
标准范围
This document provides the qualification procedure for type approval of the tightness of hermetically sealed and closed components, joints and parts used in refrigerating systems and heat pumps as described in relevant parts of ISO 5149. The sealed and closed components, joints and parts concerned are, in particular, fittings, bursting discs, flanged or fitted assemblies. The tightness of flexible piping made from non-metallic materials is dealt with in ISO 13971. Metal flexible piping are covered by this document.
The requirements contained in this document are applicable to joints of maximum DN 50 and
components of internal volume of maximum 5 l and maximum weight of 50 kg.
This document is intended to characterize their tightness stresses met during their operations, following the fitting procedure specified by the manufacturer, and to specify the minimal list of necessary information to be provided by the supplier of a component to the person in charge of carrying out this procedure.
It specifies the level of tightness of the component, as a whole, and its assembly as specified by its manufacturer.
It applies to the hermetically sealed and closed components, joints and parts used in the refrigerating installations, including those with seals, whatever their material and their designare.
This document specifies additional requirements for mechanical joints that can be recognized as hermetically sealed joints.
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