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Features:

Integral Porting And Mounting Bracket
316L Stainless Steel Standard: NACE MR-01-75 Compliant
Up To 70 LPM Flow (2.5 SCFM)
1500 PSIG Maximum Pressure Rating On All Stainless Steel Units
PTFE Assemblies Available

Applications:

Protect On-Line Analyzers
CNG Sampling Systems
Moisture Barrier On Critical Monitoring Probes
Moisture Barrier On Critical Monitoring Probes

GUARDIAN MEMBRANE SEPARATORS

  Many sample systems require zero liquid entrainment, and demand the sample not to be altered. A porous PTFE membrane, supported by a sintered stainless steel disc is at the heart of this unit. As a wet sample enters, the membrane only allows gas or vapor molecules to pass through while all liquids are stopped. Our series of membrane filters are uniquely designed to allow the operator quick and easy membrane service while providing high performance filtration. The body contains an integral mounting bracket along with the inlet, outlet, drain, and bypass connections. The threaded cap is user friendly with knurls and flats for optimum infield serviceability. No connections are broken to service the membrane disc.

  Our second generation of GMS105 products also features an “Atomizer Plate” which spins the gas flow dropping much of the liquid mass out before contact is even made with the membrane. This rotation assists in keeping the membrane particle free too. We have further reduced the internal volume to minimize the sample lag time.


STANDARD MEMBRANE MODELS
Stainless Steel Housing Model GMS050 GMS100 GMS105-1/8" GMS105-1/4"
PTFE Model (1) N/A N/A GMS105P-1/8" GMS105P-1/4"
Replaces Model  SM015.111 SM100.221 SM105.111 SM105.221
Port Size (NPT) 1/8" 1/4" 1/8" 1/4"
Drain & Gauge Port (NPT) 1/8" 1/4" 1/8" 1/4"
Maximum Pressure (psig) 1500 1500 1500 1500
Maximum Temperature (°F) 300 300 300 300
Internal Volume (cc)    
In Sample Chamber - Behind Membrane 1.5 3 3.96 3.96
Principle Dimensions: (inch)        
Center Of Port To Back 0.28 0.39 0.39 0.39
Body Diameter 1.50 2.20 2.48 2.48
Body Depth 1.26 2.05 1.89 1.89
Space Required To Remove Cap 0.90 0.90 0.87 0.87
Membrane Code (2) MT.19.° MT.33.° MT.33.° MT.33.°
Materials of Construction: (3)      
Head, Bowl & Internals 316LSS 316LSS 316LSS 316LSS
Seals Viton Viton Viton Viton
Accessories:      
Buna-N Seal Set BNGMS050 BNGMS100 BNGMS105 BNGMS105
EPDM Seal Set GEGMS050 GEGMS100 GEGMS105 GEGMS105
Kalrez Seal Set KZGMS050 KZGMS100 KZGMS105 KZGMS105
Viton Seal Set GVGMS050 GVGMS100 GVGMS105 GVGMS105
Mounting Bracket MBGMS050 MBGMS100 MBGMS105 MBGMS105


Notes: (1) PTFE has a maximum pressure of 100 PSIG
(2) Replace the “?” with the grade required. e.g. MT.19.M1 or MT.33.M2
(3) Material abbreviations: 316L=316L Stainless Steel


New “Pull Ring” to easily
remove the plug & service the membrane.
  Guardian Membranes are also offered with integral coalescing pre-filters. A 50C grade element is mounted before the membrane to remove most liquids and solids, thus providing longer membrane life. This integral package minimizes dead volume, panel space, and leak points. The combo units accept the same membrane kits as our standard Guardian units. Part numbers are specified at the bottom of the attached chart.

  Our Model GMS170 takes the built-in coalescing filter one step further by inverting the complete assembly and making it easy to service by eliminating the need to break port connections. Here too we reduced internal volume for better conditioning results.


MEMBRANES WITH INTEGRAL COALESCING FILTER
Stainless Steel Housing Model GMS120 GMS122 GMS170
Replaces Model SM125.111 SM125.221 N/A
Port Size (NPT) 1/8" 1/4" 1/4"
Drain & Gauge Port (NPT) 1/8" 1/4" 1/4"
Maximum Pressure (psig) 1500 1500 2000
Maximum Temperature (°F) 300 300 300
Internal Volume    
In Sample Chamber - Behind Membrane 0.118 0.118 3
Principle Dimensions: (inch)    
Body Diameter 1.96 1.96 2.13
Body Depth 5.26 5.26 3.19
Space Required To Remove Cap 3.30 3.30 1.61
Coalescing Element 12-57-50C 12-57-50C 25-27-50C
Membrane Code (1) MT.33.°/50c MT.33.°/50c MT.33.°/50c-170
Materials of Construction: (2)      
Head, Bowl & Internals 316LSS 316LSS 316LSS
Seals Viton Viton Viton
Accessories:      
Buna-N Seal Set BNGMS120 BNGMS122 BNGMS170
EPDM Seal Set GEGMS120 GEGMS122 GEGMS170
Kalrez Seal Set KZGMS120 KZGMS122 KZGMS170
Viton Seal Set GVGMS120 GVGMS122 GVGMS170
Mounting Bracket MBGMS120 MBGMS122 N/A


Notes: (1) Replace the “?” with the grade required. e.g. MT.33.M1 or MT.33.M2
(2) Material abbreviations: 316L=316L Stainless Steel


The GMS120/122 series utilizes
the traditional T-type design, with
a coalescing pre-filter built into
the assembly, and the membrane
mounted on top with a vertical
exit point, which assists in
keeping it clean.
A GMS205 / GMS 130 series is also offered which mimics the design features of the smaller GMS105 / GMS120 series. These units are meant for systems with higher flow rates (70 LPM) and dirtier streams. The larger membrane and coalescing filter obviously will provide longer service life based upon their physical size. However, these larger units should only be used where the smaller GMS105 series cannot handle the flow.


STANDARD MEMBRANE MODELS
Stainless Steel Housing Model GMS205-1/4" GMS205-1/2"
PTFE Model (1) GMS205P-1/4" GMS205P-1/2"
Replaces Model SM205.221 SM205.441
Port Size (NPT) 1/4" 1/4"
Drain & Gauge Port (NPT) 1/4" 1/4"
Maximum Pressure (psig) 1500 1500
Maximum Temperature (°F) 300 300
Internal Volume  
In Sample Chamber - Behind Membrane 19.69 19.69
Principle Dimensions: (inch)  
Center Of Port To Back 0.60 0.60
Body Diameter 3.94 3.94
Body Depth 3.03 3.03
Space Required To Remove Cap 1.30 1.30
Membrane Code (2) MT.61.° MT.61.°
Materials of Construction: (3)    
Head, Bowl & Internals 316LSS 316LSS
Seals Viton Viton
Accessories:    
Buna-N Seal Set BNGMS205 BNGMS205
EPDM Seal Set GEGMS205 GEGMS205
Kalrez Seal Set KZGMS205 KZGMS205
Viton Seal Set GVGMS205 GVGMS205
Mounting Bracket MBGMS205 MBGMS205


Notes: (1) PTFE has a maximum pressure of 100 PSIG
(2) Replace the “?” with the grade required. e.g. MT.61.M1 or MT.61.M2
(3) Material abbreviations: 316L=316L Stainless Steel





MEMBRANES WITH INTEGRAL COALESCING FILTER
Stainless Steel Housing Model GMS130 GMS132
Replaces Model SM225.221 SM225.441
Port Size (NPT) 1/4" 1/2"
Drain & Gauge Port (NPT) 1/4" 1/2"
Maximum Pressure (psig) 1500 1500
Maximum Temperature (°F) 300 300
Internal Volume  
In Sample Chamber - Behind Membrane 2.2 2.2
Principle Dimensions: (inch)  
Body Diameter 2.95 2.95
Body Depth 6.75 6.75
Space Required To Remove Cap 3.95 3.95
Coalescing Element 25-64-50C 25-64-50C
Membrane Code (1) MT.61.°/50c MT.61.°/50c
Materials of Construction: (2)    
Head, Bowl & Internals 316LSS 316LSS
Seals Viton Viton
Accessories:    
Buna-N Seal Set BNGMS130 BNGMS132
EPDM Seal Set GEGMS130 GEGMS132
Kalrez Seal Set KZGMS130 KZGMS132
Viton Seal Set GVGMS130 GVGMS132
Mounting Bracket MBGMS130 MBGMS132


Notes: (1) Replace the “?” with the grade required. e.g. MT.33.M1 or MT.61.M2
(2) Material abbreviations: 316L=316L Stainless Steel



The porous membranes are produced from pure PTFE; they are extremely inert and have very low absorption levels. There are two standard grades available for use in low to high flow applications. The M1 (0.1 micron) is a low flow type membrane suitable for most liquids and the M2 (0.8 micron) is a high flow type recommended for higher surface tension liquids.



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