| 摘要 |
An in-line valve sampling system connected to a pipe conduit extracts a sample of process media in a receiving container or receptacle for testing. The valve sampling system provides a resilient sealing mechanism for corrosive process media at elevated and fluctuating temperature ranges by providing a packing cartridge having a thin film of PTFE material biased by at least one O-ring to provide a seal between a valve spindle and a raised portion of the packing cartridge.
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