標準號：DIN EN 13648-1-2009
中文標準名稱：低溫容器.過壓保護用安全裝置.第1部分:低溫設施用安全閥
英文標準名稱：Cryogenic vessels - Safety devices for protection against excessive pressure - Part 1: Safety valves for cryogenic service; English version of DIN EN 13648-1:2009-02
標準類型：A82
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：A82
引用標準：EN 1252-1;EN 1252-2;EN 1797;EN 12300;EN ISO 4126-1-2004;EN ISO 4126-4-2004
適用范圍：This European Standard specifies the requirements for the design, manufacture and testing of safety valves forcryogenic service, that is to say for operation with cryogenic fluids (as defined in EN 1251-1) below -10 ~C inaddition to operation at ambient temperature. It is a requirement of this European Standard that the valves complywith EN ISO 4126-1 or EN ISO 4126-4. In the event of different requirements, the requirements for cryogenicservice are applied.NOTE 1 A cryogenic fluid (refrigerated liquefied gas) is a gas which is partially liquid because of its low temperature(including totally evaporated liquids and supercritical fluids).This European Standard is restricted to valves not exceeding a size of DN 100 for category B. The valves ofcategory A are limited to DN 25 and set pressures up to 40 bars. Both categories are designed to relieve singlephase vapours or gases. A valve can be specified, constructed and tested such that it is suitable for use with morethan one gas or with mixtures of gases.NOTE 2 All safety valves covered in this European Standard correspond to category IV of PED (Directive 97/23/EC) andcategory 3 of TPED (Directive 99/36/EC).NOTE 3 This European Standard does not provide methods for determining the capacity of relief valve(s) for a particularcryogenic vessel. Such methods are provided in EN 13648-3.