译文：
国家质检总局前不久对天津、河北、上海、江苏、浙江、安徽、福建、河南等8个省、直辖市33家企业生产的33种安全阀产品进行了监督抽查。经检验，本次抽查安全阀产品的壳体强度、整定压力等指标单项符合率达到{bfb}。抽查中发现有6种产品不合格。 此次抽查依据推荐性国家标GB/T12241-2005《安全阀一般要求》、GB/T12242-2005《压力释放装置试验方法》、GB/T12243-2005《弹簧直接载荷式安全阀》规定的要求，对安全阀产品的壳体强度、密封性、整定压力、排放压力、回座压力、机械特性、排量或排量系数、开启高度、阀门标志、外观质量等10个项目进行了检验。 有1种产品机械特性出现颤振现象，颤振会引起管道剧烈振动而引发其他事故的发生。 有3种产品排放量不合格。在使用过程中不能尽快地将设备内的压力释放，不利于设备的安全。 有1种产品排放压力超过标准规定的要求，在规定的压力内无法释放压力。推荐性国家标准GB/T12243-2005《弹簧直接载荷式安全阀》规定，安全阀的排放压力应不超过1.1倍的整定压力（气体）或1.2倍的整定压力（液体）。 有2种产品回座压力不合格。回座压力达不到标准要求，会使被保护设备内的介质更多的被排放掉引起泄漏。推荐性国家标准GB/T12243-2005《弹簧直接载荷式安全阀》规定，安全阀的回座压力应大于85%的整定压力（气体）或80%的整定压力（液体）。 有4种产品开启高度达不到标准规定的要求。推荐性国家标准GB/T12243-2005《弹簧直接载荷式安全阀》规定，安全阀的开启高度应不小于四分之一的阀门喉径（气体）或二十分之一的阀门喉径（液体）。安全阀的开启高度影响排放量，安全阀在动作时，阀瓣应迅速开启和升高，这样能尽快地将被保护设备内的压力释放，减少排放时间，有利于设备、管道的安全。

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原文：
AQSIQ recently in Tianjin, Hebei, Shanghai, Jiangsu, Zhejiang, Anhui, Fujian, Henan and other 8 provinces, municipalities and 33 of the 33 production valve products for the supervision and checking. Upon examination, this sampling valve products, shell strength, pressure and other indicators in setting individual line rate of {bfb}. Spot checks were found in six kinds of product failure. The spot checks based on Voluntary National Standard GB/T12241-2005 "General requirements for safety valve", GB/T12242-2005 "pressure release device testing method", GB/T12243-2005 "direct load type spring safety valve" requirements, right valve products, shell strength, tightness, setting pressure, discharge pressure, back seat pressure, mechanical properties, displacement or the displacement factor, opening height, the valve logo, appearance quality of 10 items was examined. Mechanical properties of 1 products appear flutter phenomenon, flutter can cause violent vibrations caused pipes to other accidents. There are 3 kinds of products fail emissions. In the course of the equipment can not be as soon as possible within the pressure release, is not conducive to the safety of equipment. 1 products discharge pressure exceeds the standard requirements in the regulations are not able to release the pressure on the pressure. Recommended National Standards GB/T12243-2005 "spring load safety valve directly," provides a safety valve discharge pressure should not exceed 1.1 times the setting pressure (gas) or 1.2 times the setting pressure (liquid). There are two kinds of pressure on substandard products back seat. Back seat pressure not meet standard requirements, would be more protective equipment in the medium is discharged out of the leakage caused. Recommended National Standards GB/T12243-2005 "spring load safety valve directly," provides a safety valve back seat pressure should be greater than 85% of the entire set pressure (gas) or 80% of the entire set pressure (liquid). There are 4 kinds of products fail to open a high standard of requirements. Recommended National Standards GB/T12243-2005 "spring load safety valve directly," provides a safety valve opening height shall be not less than one quarter of the valve throat diameter (gas), or one-twentieth of the valve throat diameter (liquid). A safety valve to open high-impact emissions, safety valve in the action, the valve flap to open and increase shall be promptly, so that as soon as possible will be able to protect the equipment inside the pressure release, reduce emissions of time is beneficial equipment, pipeline safety.

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