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Safetygram-31 安全程序-31 Cylinder Valve Outlet Connections 钢瓶阀门排气口接头 Introduction 引言 The Connections Standards Committee of the Compressed Gas Association (CGA) is responsible for assigning standard connections for specific gases and establishing detailed dimensions for the manufacture of these connections. The main purpose for establishing such standards is to prevent interconnection with non-compatible gases and to provide continuity among manufacturers. Assigned connections also prevent interconnection of the same gas at incompatible pressures. 压缩气体协会(CGA)的接头标准委员会负责为特殊气体指定标准接头和为这些接头的制造确定详细的尺寸。建立这些标准的主要目的是防止不相容气体的相互连接和在制造商之间提供连续性。指定接头还防止了在不相容压力下同样气体的交叉连接。 There are four basic groups of valve outlet connections: (1) connections for general, industrial compressed gas service; (2) connections for self-contained breathing apparatus (SCBA) service; (3) connections for ultra-high-integrity service; and (4) pin-indexed connections for medical gas service. Although this Safetygram addresses connections only for industrial compressed gas service and ultra-high-integrity gas service, much of this information also applies to the other two groups. 有四组基本的阀门排气口接头:(1) 用于普通的工业气体设施的接头;(2)用于自给式呼吸器(SCBA)装置的接头; (3)用于超高完整性装置的接头;和(4)用于医疗气体设施的指度针接头。尽管本安全程序只说明用于工业压缩气体设施和超高纯度气体设施的接头,这些资料中的许多也适用于其它两组接头。 In North America, outlet connections are usually designated by a three-digit number preceded by the letters CGA, the acronym for the Compressed Gas Association, for example, CGA 350. Sometimes an ultra-high-integrity connection is preceded by a ―DISS‖ designation rather ...

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