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2019-03-30View Original

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"Der Verschletzungsproblem bei dernen Dichtungen bei dernen Druck- und und Temperaturmessgeräern",

Reply #22019-04-01

"Die Dichtungen bei dernen Druck- und und und Temperaturmessgerääichtungsanordungen bei dernen Wachhydrierungsumrichtern bestehen aus F-Vinylidenefluorr.过程中发生了泄漏。请问：在临氢介质下高温高压的情况下，应该选用什么样的垫片？紫铜垫片适合在临氢状态下使用吗？",

Reply #32019-04-01

"目前需要知道您的设备是多高的压力和温度，PTFE 也分为多种材料，单纯的四氟在这种状态下很容易损坏，可以加石墨或玻璃纤维。我们的针阀氢气介质下可达350℃及2m5"MPa高压，非高温可达450MPa。因此选择时一定要结合实际应用情况。",

Reply #42019-04-01

"加氢进料泵A出口流量计FT"m"采用罗斯蒙特355高静差压变送器、高压三阀组、介质为原料油（蜡油），操作温度185℃、操作压力18.8MPa。选用的垫片是四氟石墨抗高温蠕变垫片；而加氢反应器上的温度比这还要高而且涉氢。两个地方都发生了了泄漏。",

Reply #52019-04-01

"通常四氟的一般也就是"n"摄氏度，用石墨缠绕垫吧、耐高温",

Reply #62019-08-05

"由于是较窄的密封槽、缠绕垫片无法使用。选用紫铜垫片和铝垫片可以吗？在高温氢气下有没有发生氢脆的可能？",

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