GMS Series – Coalescing Pre-Filter Membrane
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.
| 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 remove | Combo Membrane Separators remove | Sight Glass Housings remove | Stainless Steel 1,500 PSIG Housings remove | Miniature Stainless Steel 5,000 PSIG Housings remove | Miniature Ultra High Pressure Stainless Steel 10,000 PSIG Housings remove | |
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| Name | Coalescing Pre-Filter Membranes remove | Combo Membrane Separators remove | Sight Glass Housings remove | Stainless Steel 1,500 PSIG Housings remove | Miniature Stainless Steel 5,000 PSIG Housings remove | Miniature Ultra High Pressure Stainless Steel 10,000 PSIG Housings remove |
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| Additional information | ||||||
| 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. | The GMS170 series of integral coalescing membrane separators delivers superior protection for online sampling analyzers. | Four standard sizes are available, based on our Pyrex and stainless steel filter assembly design. | The 130 and 140 Series filters are ideal for use with gaseous and liquid sample process analyzers, as well as other demanding applications. | 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 110HP and 120HP Series Filters are designed for high-pressure applications, including gaseous and liquid sample process analyzers and fuel cell filtration. |
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