Coalescing Pre-Filter Membranes

Guardian Membranes are also available with integrated coalescing pre-filters. A 50C-grade element is positioned upstream of the membrane to effectively remove the majority of liquids and particulates, thereby extending membrane life.

GMS Series – Coalescing Pre-Filter Membrane

Guardian Membrane Separators (GMS Series) – Full Catalog

Sample Conditioning – Analytical FIlters (Full Catalog) 2

PRODUCT FEATURES / BENEFITS
s  Built-In Pre-Filter
s  Up to 70 LPM Flow (2.5 SCFM)
s  1500 PSIG Max. Pressure Rating on All SS Units
s  Hydrophobic Membrane Bonded to O-Ring for Ease of Service
s  Protect On-Line Analyzers
s  CNG / LNG Sampling Systems
s  Sampling Conditioning

Description

Guardian Membranes are also available with integrated coalescing pre-filters. A 50C-grade element is positioned upstream of the membrane to effectively remove the majority of liquids and particulates, thereby extending membrane life. This all-in-one design minimizes dead volume, conserves panel space, and reduces potential leak points. These combination units are compatible with the same membrane kits used in our standard Guardian models. Corresponding part numbers can be found at the bottom of the attached chart.

 

Traditional T-Type

The GMS120/122 series features a traditional T-type design with an integrated coalescing pre-filter housed within the assembly. The GMS127G model adds a Pyrex bowl, enabling easy visual inspection of filter condition at a glance. In this series, the membrane is mounted on top with a vertical outlet, which helps maintain membrane cleanliness by promoting drainage.

 

A key feature of this series is its unique membrane holder plate, designed for easy maintenance. Once the collar is loosened and lifted, the plate slides out from underneath—allowing for quick membrane replacement without the need to disconnect any fittings.

Quick Comparison

Coalescing Pre-Filter Membranes removePTFE Filter Housings removeGuardian Membrane Liquid Separator removeInline Stainless Steel Housings removeUltra High Pressure 6,000 PSIG Stainless Steel Process Housings removeOptions for Stainless Steel Housings remove
NameCoalescing Pre-Filter Membranes removePTFE Filter Housings removeGuardian Membrane Liquid Separator removeInline Stainless Steel Housings removeUltra High Pressure 6,000 PSIG Stainless Steel Process Housings removeOptions for Stainless Steel Housings remove
ImageCoalescing Pre-Filter MembranesPTFE Filter HousingsGuardian Membrane Liquid SeparatorInline Stainless Steel HousingsUltra High Pressure 6,000 PSIG Stainless Steel Process HousingsOptions for Stainless Steel Housings
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Additional information
DescriptionGuardian Membranes are also available with integrated coalescing pre-filters. A 50C-grade element is positioned upstream of the membrane to effectively remove the majority of liquids and particulates, thereby extending membrane life.PTFE filter housings are engineered specifically for applications requiring exceptional chemical resistance and minimal adsorption. These housings support a range of filter elements for both gaseous and liquid filtration.The GMSL205 Series is specifically designed to remove water and other high surface tension liquids from liquid hydrocarbon streams.In-line Filter Housings are designed specifically for particulate removal in systems requiring extended service intervals. These housings are not intended for coalescing applications and are not compatible with adsorption cartridges.Our 150VP and 160VP series of ultra high-pressure 316L stainless steel filter housings deliver exceptional performance and value in the most demanding applications.In applications where space is limited and maintenance is critical, our Inverted (IVT) housings provide an ideal solution. All line connections—including inlet, outlet, and drain ports—are in the head of the unit.
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