21T Laboratory Filters

Stainless Steel and Pyrex Laboratory FilterThe 21T Series lab Laboratory Filters are for use in laboratories to perform filtration trials and scalability studies. These 21T Laboratory Filters are constructed of 316 stainless steel with stainless steel cylinders for pressures up to 50 PSIG, or a protected Pyrex® glass cylinder for filtration up to 30 PSIG. Stainless steel cylinders can be furnished with an optional heating or cooling jacket.

When running trials, which require more than one filtration stage, ErtelAlsop now includes our new dividing ring to provide for double filtration.

Small constant flow pumps, compressed air or inert gas can be used to flow liquid through the filter media. The O-Ring seal provides the versatility to use a variety of filter media of different composition and thickness.

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Standard FeaturesOptional FeaturesSpecificationsDownloads
    • Stainless Steel Cylinder (Model 21T)
    • Pressure Gauge
    • EPDM Elastomer
    • Stainless Steel Mounting Stand
  • Pyrex Glass Cylinder (Model 21TP)
  • Heating or Cooling Jacket (Model 21TJ)
  • Single Sheet / No Reservoir (Model 21TS)
  • Sanitary Connections
  • Tubing and Pumps
  • Elastomer Matierial – Teflon, Neoprene, Viton, Buna, Silicone
Specs. 21TS 21TP 21T 21TJ
Material 316 L 316 L / Pyrex 316 L 316 L
Pressure Limit 50 PSI 30 PSI 50 PSI 50 PSI
Jacket Pressure N/A N/A N/A 30 PSI
Media Type Any Flat Any Flat Any Flat Any Flat
Media Diameter 140 mm (5.51 in) 140 mm (5.51 in) 140 mm (5.51 in) 140 mm (5.51 in)
Filter Area 135 cm2 (21 in2) 135 cm2 (21 in2) 135 cm2 (21 in2) 135 cm2 (21 in2)
Volume 200 ml (12 in3) 3.7 l (229 in3) 3.7 l (229 in3) 3.7 l (229 in3)
Gauge None 0 – 2.5 Bar 0 – 2.5 Bar 0 – 2.5 Bar
*All dimensions are for reference only