°Catalytic Instruments

High efficiency particulate air (HEPA)

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High efficiency particulate air (HEPA) filters are used to filter contaminate particles out of gas streams. Our HEPA filters are greater than 99.97% efficient at removing particles ~0.3 µm in diameter.

How it works?

High efficiency particulate air (HEPA) filters are used to filter contaminate particles out of gas streams. HEPA filters are greater than 99.97% efficient at removing particles ~0.3 µm in diameter. Their efficiency is even higher at larger and smaller sizes.

Examples of applications include filtering particles upstream of gas analyzers, filtering particles upstream of sensitive devices such as flowmeters and filtering the effluent of instruments so as not to contaminate ambient or cleanroom environments.

Our HEPA filters come in many sizes with convenient options to connect inline your process. The CI-559-NPT barb HEPA filter is one of our largest sized HEPA filters. It has a very low pressure drop and nearly twice as much filtration media as the CI-323. The inlet and outlet connections are national pipe thread (“NPT”). This allows the user to connect their own fittings of different geometries and materials to the filter. For example, an elbow with a barb can be attached when space is limited. Metal or plastic fittings can be used.

Models

hepa filter
CI-794-NPT
Filter Media: Borosilicate Glass Microfibers
Filter Efficiency: 99.99% at 0.1 µm
Body Material: Injection-Molded Polypropylene

Length: 180 mm
Outside Diameter: 63 mm
Effective Filtration Area: 794 cm²
Connection: 3/8″ NPT
Pressure Drop: 1,150 Pa @ 100 SLPM
ci 794 npt hepa filter
CI-559-NPT
Filter Media: Borosilicate Glass Microfibers
Filter Efficiency: 99.99% at 0.1 µm
Body Material: Injection-Molded Polypropylene

Length: 114 mm
Outside Diameter: 69 mm
Effective Filtration Area: 559 cm²
Connection: 3/8″ NPTF
Pressure Drop: 1,250 Pa @ 100 SLPM
ci 323 npt hepa filter
CI-323-NPT
Filter Media: Borosilicate Glass Microfibers
Filter Efficiency: 99.99% at 0.1 µm
Body Material: Injection-Molded Polypropylene

Length: 76 mm
Outside Diameter: 64 mm
Effective Filtration Area: 323 cm²
Connection: 3/8″ NPTF
Pressure Drop: 500 Pa @ 25 SLPM
ci barb (1)
CI-101-barb
Filter Media: Borosilicate Glass Microfibers
Filter Efficiency: 99.99% at 0.1 µm for flow rates below 1.5 SLPM
Body Material: Injection-Molded Polypropylene

Length: 79 mm
Outside Diameter: 30 mm
Effective Filtration Area: 100.8 cm²
Connection: 3/16″ OD Barb
Pressure Drop: 324 Pa @ 1.5 SLPM

For shipments within the EU please provide a valid VAT no. or  VAT will be added to the invoice.

For orders shipping outside the EU, the minimum order value is €200, otherwise there is an additional handling charge of €50.