Category: Sample Filters
Product Code: Series 98 Membrane Filters
Ideal for protecting GCs, Mass Spectrometers, O2 Analyzers, and Moisture Analyzers
Removes entrained water, submicron sulfuric acid aerosol, and ultra fineparticulate
Much lower initial cost and operating costs than other membrane filters
Series 98 Membrane Filter
The Series 98 Membrane Filter consists of a housing with a porous membrane filter, which is supported by a sintered porous disk located on the “outlet” side of the housing. Gas enters through the “inlet” port on the upstream side of the membrane, and exits from the “outlet” port on the downstream side. Entrained liquid will not flow through the membrane, and will exit through the “bypass” port on the upstream side of the membrane, completely protecting sensitive instrumentation from moisture. Two models are available: The 98-0 (standard) and the 98-2 (high flow). The 98 Series is identical to other hydrophobic membranes offering the same performance and features but at a much lower price.
The Membrane
Microscopic pores contained within the membrane permit molecules of gas or vapor to flow through easily, allowing the composition of the sample gas to remain unchanged. Even the smallest liquid molecules remain trapped and are unable to flow through the membrane’s small passages under normal operating conditions. This is due to the high surface tension which causes liquid molecules to bind tightly together to form a group of molecules, moving together, which is too large to fit through the pores of the membrane.
The membrane is extremely inert, and is recommended for most process liquid applications, with the exception of hydrofluoric acid. It is also recommended for use in systems designed for PPB, PPM, and “percent level” component concentrations, as a result of its very low absorption characteristics. The membrane is strong and durable, but also very soft and pliable.
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