Membrane Separators
PTFE membrane technology providing an absolute barrier to liquid transmission — from high-pressure process gas service at 150 bar to versatile gas analysis sample conditioning with integral pre-filtration.
High-Pressure Membrane Separator
PTFE membrane technology rated to 150 bar for process gas service
The RF-M-HFM100 is a high-pressure PTFE membrane separator designed for final-stage liquid and aerosol removal in process gas applications. The hydrophobic PTFE membrane provides an absolute barrier to liquid transmission while allowing gas to pass freely, ensuring zero liquid carryover to downstream analysers and instruments.
Key Features
- 150 bar working pressure — highest-rated membrane separator available
- PTFE membrane: absolute liquid barrier, hydrophobic
- 200 °C maximum operating temperature
- Automatic liquid drainage — no operator intervention
- Zero liquid carryover guarantee — protects sensitive analysers
- Compact ¼″ NPT connections for standard panel integration
GMS100 Compact Membrane Separator
Compact stainless steel membrane separator for gas analysis
The RF-M-GMS100 is a compact PTFE membrane separator in 316L stainless steel, designed for gas analysis sample conditioning. With a knurled body for easy maintenance access and dual sample ports, it is ideal for continuous emissions monitoring (CEMS) and process analyser protection at pressures up to 100 bar.
Key Features
- Compact footprint — ideal for panel mounting
- PTFE membrane provides absolute liquid barrier
- 100 bar working pressure
- Knurled body for tool-free maintenance access
- Dual ¼″ NPT sample ports
- Direct functional equivalent to legacy GMS100 models
GMS105 / GMS105P Membrane Separator with Pre-Filter
Integral coalescing pre-filter extends membrane life
The RF-M-GMS105 series combines a PTFE membrane with an integral coalescing pre-filter, significantly extending membrane life by removing bulk liquid before it reaches the membrane. Available in 316L stainless steel (GMS105) or solid PTFE body (GMS105P) for highly corrosive gases such as chlorine, HCl, and sour gas.
Key Features
- Integral coalescing pre-filter removes bulk liquid
- Significantly extends PTFE membrane service life
- GMS105P PTFE body — fully chemically inert
- P-variant ideal for chlorine, HCl, sour gas
- Drop-in replacement for legacy GMS105 / GMS105P
- Compact ¼″ NPT connections
GMS170 / GMS122 Fast-Loop Membrane Separator
Three-port fast-loop and integral drain configurations
The RF-M-GMS170 features a three-port fast-loop design that minimises analyser response time by allowing continuous sample flow through the separator. The RF-M-GMS122 variant includes an integral drain port for automatic liquid removal. Both models are ideal for time-critical sampling applications where fast analyser response is required.
Key Features
- GMS170: three-port fast-loop design
- Minimises analyser dead-volume and response time
- GMS122: integral drain for automatic liquid removal
- PTFE membrane — absolute liquid barrier
- Available with viewing port (transparent variant)
- Pull-ring closure for tool-free maintenance
GMS205 / GMS205P High-Flow Membrane Separator
Larger body and ½″ ports for higher flow applications
The RF-M-GMS205 series provides higher flow capacity than the GMS100/105 range with ½″ NPT ports and a larger body. Available in 316L stainless steel (GMS205) or solid PTFE body (GMS205P) for corrosive service. Ideal for higher flow sample conditioning and applications where standard ¼″ separators are flow-limited.
Key Features
- Larger body — accepts higher flow rates
- ½″ NPT ports for reduced pressure drop
- GMS205P PTFE body — corrosive service
- Pull-ring quick-release for fast maintenance
- Replaceable PTFE membrane disc
- Drop-in replacement for legacy GMS205 / GMS205P
Problems These Products Solve
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Our technical team can recommend the correct housing, element type, and material configuration for your specific process conditions.