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Geotech Stainless Steel
& PFA In-line Filter Holders

Geotech In-line Filter Holders are designed for on-site, rapid filtration of surface or groundwater samples through larger diameter flatstock filter membranes.

Stainless Steel (47mm, 90mm, 142mm)

  • Designed to minimize resistance and maximize flow rate
  • Includes vent relief valve for improved performance
  • Made of 316 stainless steel – rated @ 100 psi

PFA (47mm or 90mm)

  • Designed for filtering small volumes
  • All wetted surfaces are PFA to maximize chemical compatibility
  • Holder allows membrane replacement without disconnecting tube lines
  • Open face holder for air studies
STAINLESS STEEL IN-LINE FILTER HOLDERS
90 mm Filter Holder    
Filter Membrane Size   90mm diameter (only)
Pre-filter Size   75mm
Filter Area   45 cm2
Support Screen   PTFE coated photoetched SS
O-ring   Silicone
Gasket   PTFE
Inlet Fitting   ¾" NPTF
Outlet Fitting   ¾" NPTM
Approximate Shipping Weight   3.9 kg (8.5 lbs.)
Autoclaving   35 minutes, 121°C
47 mm Filter Holder    
Filter Membrane Size   47mm diameter (only)
Pre-filter Size   35mm
Filter Area   12.5 cm2
Downstream Volume   2 ml
Upstream Volume   5 ml
O-ring   Viton® & Silicone
Vent Valve O-ring   Viton®
Gasket   PTFE
Back Pressure Support Screen   PTFE coated
Support Screen   PTFE
Internal Fittings   ¼" NPTF to 9.5mm nozzle ID
External Inlet/Outlet Fittings   ¼" NPTF to 11mm OD hose barb
142 mm Filter Holder    
Filter Membrane Size   142mm diameter (only)
Pre-filter Size   124mm
Filter Area   113 cm2
Support Screen   PTFE & SS
O-ring   Silicone
Gasket   PTFE & SS
Inlet Fitting   ¾" NPTF
Outlet Fitting   ¾" NPTM
Approximate Shipping Weight   6.3 kg (14.1 lbs.)
Autoclaving   45 minutes, 121°C
Filter Holder Plates   316 Stainless Steel
Pressure   7kg/cm2 (100psi) differential

PFA IN-LINE FILTER HOLDERS  
47 mm PFA Filter Holder    
Filter Membrane Size   47mm diameter
Diameter   67mm
Maximum Pressure   25 psi
Maximum Operating Temperature   100°C
Inlet/Outlet Compression Fitting   Female ¼" NPTM or ¼" (6.35mm) diameter tubing
Filter Area   12.5 cm2
Height   70mm
Weight   5.2 oz. (120g)
90 mm PFA Filter Holder    
Filter Membrane Size   90mm diameter
Diameter   103.19mm
Maximum Pressure   10 psi
Maximum Operating Temperature   135°C
Inlet/Outlet Compression Fitting   Female ½" NPTM or ¾" (6.35mm) diameter tubing
Filter Area   63.62 cm2
Height   136.65mm
Weight   16 oz. (454g)

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> Specifications PDF

> Installation and Operation Manual

 

 

 

 

 

Geotech Stainless Steel In-line Filter Holder
Geotech Stainless Steel In-line Filter Holder
Geotech PFA In-line Filter Holder with Tools
Geotech PFA In-line Filter Holder with Tools