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 removeHigh Pressure Mid-Size Stainless Steel 3,000 PSIG Housings removeStand-Alone Membrane Separators removeHigh Pressure 3,000 PSIG Stainless Steel Process Housings removeMiniature Stainless Steel 5,000 PSIG Housings removeMiniature Guardian Separators remove
NameCoalescing Pre-Filter Membranes removeHigh Pressure Mid-Size Stainless Steel 3,000 PSIG Housings removeStand-Alone Membrane Separators removeHigh Pressure 3,000 PSIG Stainless Steel Process Housings removeMiniature Stainless Steel 5,000 PSIG Housings removeMiniature Guardian Separators remove
ImageCoalescing Pre-Filter MembranesHigh Pressure Mid-Size Stainless Steel 3,000 PSIG HousingsStand-Alone Membrane SeparatorsHigh Pressure 3,000 PSIG Stainless Steel Process HousingsMiniature Stainless Steel 5,000 PSIG HousingsMiniature Guardian Separators
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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.The 130HP and 140HP Series Filters feature a rugged, yet straightforward design, making them an excellent choice for CNG applications and other high-pressure systems. TThe Guardian Membrane Series is engineered to provide complete removal of entrained liquids and solids from gas samples assuring sample integrity and protecting downstream analyzers.Our 150HP and 160HP series high-pressure filter housings are constructed from 316L stainless steel, delivering exceptional performance and value in demanding service conditions.The 110 and 120 Series Filter Housings are designed for use with both gaseous and liquid sample process analyzers. Their compact configuration, low internal volume, and positive O-ring sealing mechanism provide reliable performance in demanding analyzer applications.The GMS100 protects gas chromatographs and other online analyzers that require low sample flow rates from liquid and particulate contamination when only minimal amounts of liquid are present in the sample gas. The GMS100 assembly features a straight-through flow path, with the inlet port and drain positioned on the same plane. The clean sample outlet is located on the opposite plane, enhancing flow efficiency and reducing the risk of flooding.
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