Stand-Alone Membrane Separators

The Guardian Membrane Series is engineered to provide complete removal of entrained liquids and solids from gas samples assuring sample integrity and protecting downstream analyzers.

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PRODUCT FEATURES / BENEFITS
Integral Porting and Mounting Bracket
Up to 70 LPM Flow (2.5 SCFM)
Up to 2200 PSIG Max. Pressure Rating on All SS Units
Hydrophobic Membrane Bonded to O-Ring for Ease of Service
Protect On-Line Analyzers
CNG / LNG Sampling Systems
Sampling Conditioning

Description

The Guardian Membrane Series is engineered to provide complete removal of entrained liquids and solids from gas samples assuring sample integrity and protecting downstream analyzers. Each unit is precision-machined from 316L stainless steel, rated for pressures up to 1,500 PSIG, and optimized for low-flow sampling applications.

 

Key Features:

  • High-Performance Filtration: Hydrophobic membrane effectively blocks all liquids and particulates, allowing only gas or vapor to pass through.

 

  • Compact, Robust Design: Ideal for space-constrained installations while delivering industrial-grade durability.
  • Tool-Free Maintenance: Membrane service is fast and easy—just unthread the cap and remove the plug. No tubing or connections need to be disturbed.
  • Premium Seal: Each unit comes with a bonded Viton O-ring to ensure a reliable, leak-tight seal.

All our Guardian Membranes are available in exotic materials: PTFE, Hastelloy C, Monel 400, and Titanium.

As an option we also offer Kalrez, EPDM, Buna and PTFE Encapsulated Viton O-rings.

 

For flow rates up to 15 LPM, we offer the GMS205 Series. This series maintains the user-friendly design of our GMS105 model, but incorporates a larger membrane. The increased surface area not only supports higher flow rates, but also extends service intervals by reducing membrane loading.

Standard assemblies are precision-machined from 316L stainless steel and come equipped with Viton® seals. Each unit is supplied with a hydrophobic/oleophobic membrane permanently bonded to a Viton® O-ring for reliable sealing and chemical resistance.

 

Material Options for Demanding Applications

 

All Guardian Membrane assemblies are also available in a range of exotic materials to suit challenging environments, including PTFE, Hastelloy® C, Monel® 400, and Titanium. Optional O-ring materials include Kalrez®, EPDM, Buna-N, and PTFE-encapsulated Viton® to meet specific chemical compatibility or temperature requirements.

Quick Comparison

Stand-Alone Membrane Separators removeFast Loop Filters (All Models) removeStainless Steel 1,500 PSIG Housings removeMulti-Port Filter Housings removeHigh Pressure 3,000 PSIG Stainless Steel Process Housings removeAnalyzer Panel Filter (Model 170) remove
NameStand-Alone Membrane Separators removeFast Loop Filters (All Models) removeStainless Steel 1,500 PSIG Housings removeMulti-Port Filter Housings removeHigh Pressure 3,000 PSIG Stainless Steel Process Housings removeAnalyzer Panel Filter (Model 170) remove
ImageStand-Alone Membrane SeparatorsFast Loop Filters (All Models)Stainless Steel 1,500 PSIG HousingsMulti-Port Filter HousingsHigh Pressure 3,000 PSIG Stainless Steel Process HousingsAnalyzer Panel Filter (Model 170)
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Additional information
DescriptionThe Guardian Membrane Series is engineered to provide complete removal of entrained liquids and solids from gas samples assuring sample integrity and protecting downstream analyzers.Fast Loop Filters are engineered to minimize the time delay commonly associated with online analyzer sample systems. Unlike traditional three-port T-type designs, our Fast Loop configurations continuously flush the filter element of heavy contaminants while filtering only the sample stream. This design significantly reduces lag time and extends filter element life.The 130 and 140 Series filters are ideal for use with gaseous and liquid sample process analyzers, as well as other demanding applications.The 120B / 122B Series filters are designed for gaseous and liquid sample process 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 170 Series offers a compact and versatile solution for modern sample conditioning systems. Designed for inverted (upside-down) or horizontal installation, all connections—including inlet, outlet, drain, and bypass—are located in the head, allowing element servicing without breaking any connections.
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