丹阳沪威上海竟一djq系列气动低温紧急切断阀结构图片价格|品牌哪个好|工作原理-凯发k8旗舰厅

此类型专用低温紧急切断阀适用于低温贮槽上切断流通介质,特别是在出现火情故障时能及时切断介质。广泛用于lng、液态乙烯及其它低温介质,具有体积小、重量轻、密封可靠、紧急切断迅速可靠和防静电的特点。

this type is special emergency cut-off valve is suitable for low temperature storage tank at low temperature on cut off circulation medium, especially in the event of a fire failure can promptly cut off the medium. widely used in lng, ethylene and other low temperature liquid medium, has small volume, light weight, reliable sealing, reliable emergency stop quickly and anti-static characteristics.

▋低温紧急切断阀主要技术参数:

公称压力/nominal pressure:4.0mpa

设计温度/design temperature:-196℃~ 70℃

适用介质/applicable medium:lng 、lo2、ln2、lar

连接方式/connection method:插焊

公称通径/nominal diameter:25mm~50mm

强度试验压力/strength test pressure:4.0mpa

气密性试验压力/air tightness test pressure:1.6mpa

方向密封试验压力/direction of seal test pressure:0.4mpa

气缸气源压力/air pressure cylinder:0.4~0.6mpa

紧急切断温度/emergency cut-off temperature: 70℃

紧急切断时间/emergency cut-off time:<2秒

▋主要零部件材料:

阀体、阀盖: cf8

阀瓣、阀杆: s30408

阀瓣密封件:pctfe

主要零部件名称 main components name材料 materials
阀体/valve bodyzg0cr18ni9
阀瓣/valve disc0cr18ni9ti
阀盖/valve coverzg0cr18ni9
阀杆/valve stem0cr18ni9
主密封件/main sealptfe或pctfe
气缸/cylinder铸铝
支架/stents铸铝
型号/model主要外形和连接尺寸 main form and the connection size (mm)重量 weight
hh1d0d1dbw1w2m(kg)
djq-20p189478ф20ф25.5ф100880ф130rc¼7.2
djq-25p240530ф25ф32.5ф100890ф130rc¼7.7
djq-32p250489ф32ф38.5ф1008105ф130rc¼7.3
djq-40p227567ф40ф45.5ф1258120ф160rc¼13.2
djq-50p230570ф50ф57.5ф12510140ф160rc¼14.5

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