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Filters for Gas and Liquid Flow Meters/Controllers

Filters for Gas and Liquid Flow Meters/Controllers

Filters for Gas and Liquid Flow Meters/Controllers

Product catalog summary
Introduction
Thermal mass flow meters or controllers for gases are sensitive to contamination. To enhance the Mean Time Between Failure (MTBF), it is crucial to ensure the gas entering the instrument is clean. An IN-LINE Filter Assembly, which includes a 316L sintered metal filter cartridge, is recommended for general filtration and can be cleaned with a suitable solvent. For gases with high particulate content, a pre-filter is advised.

Selection
Filters are selected based on flow requirements: low-flow or medium-flow filters for 1/4” female thread inlets, and high-flow filters for 1/2” female thread inlets. The finest porosity with a low pressure drop (ΔP) is preferred, ideally not exceeding 250 to 500 mbar, with porosity not larger than 5 μm.

Material of Construction
The housing is made of AISI 316, with O-rings available in Viton, EPDM, and FFKM (Kalrez).

Pressure Drop Calculation
The pressure drop across a filter assembly can be calculated using specific models and porosity levels. For example, a flow of 80 ln/min air at 5 bara with a 5 μm filter results in a pressure drop of 78 mbar.

Model Number Identification
Filters are identified by model numbers indicating flow type, porosity, and connection types. For instance, M-410-13 indicates an ultra-low-flow filter with 0.5 μm porosity.

Dimensions and Specifications
Dimensions vary by model, with technical specifications subject to change. Pressure ratings range from 100 to 200 bar, with various adapter and seal options available.

Liquid Flow Filters
Bronkhorst® COMBI-FLOW filters offer modular flexibility for liquid flow applications. M1 Series filters allow cartridge replacement without removing the base, while M2 Series filters include a drain outlet. Filters are available with different porosities and pressure ratings.

Functional Principle
The pressure drop of an M2 filter with 10 μm fineness is illustrated in flow rate vs. pressure drop graphs.

Company Information
Bronkhorst High-Tech designs and manufactures instruments for low-flow measurement and control, offering a range of mass flow meters and controllers for gases and liquids. The company provides global support in over 40 countries.
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Catalog excerpts

Filters for Gas and Liquid Flow Meters/Controllers-1

FILTERS for Gas and Liquid Flow Meters / Controllers

 Open the catalog to page 1
Filters for Gas and Liquid Flow Meters/Controllers-2

Inherent to its construction, a thermal mass flow meter or controller for gases is sensitive to contamination. To increase the MTBF (Mean Time Between Failure) it is important to make sure that the gas entering the instrument to clean. The IN-LINE Filter Assembly, screwed into the inlet of the instrument, provides this service. It contains a 316L sintered metal filter cartridge that is suitable for general purpose filtration and can be cleaned with a suitable solvent. If the gas contains a large particulate content, we advise the use of a pre-filter. ♦ Choose a low-flow or medium-flow style filter...

 Open the catalog to page 2
Filters for Gas and Liquid Flow Meters/Controllers-3

> Model number identification 8 1/4" Face seal male V Viton (factory standard) Flow - ln/min RP/RS type A C D G Span 1 Span 2 ISO 1179 type A C D G Span 1 Span 2 Dimensions in mm. Technical specifications and dimensions subject to change without notice. IN-LINE gas flow filters

 Open the catalog to page 3
Filters for Gas and Liquid Flow Meters/Controllers-4

> Introduction Filters play a relevant role to protect sensitive components in a fluid system. Bronkhorst® COMBI-FLOW filters for liquid flow purposes offer great flexibility, thanks to the modular concept, whereby they can be equipped with different fluid connectors and filter cartridges. M1 Series filters have the advantage, that their cartridge can be replaced without removing the base from the pipe. The configuration of the M2 Series filters features a drain outlet, provided with a drain plug, which can be replaced by a regular fitting to accommodate proper connection to a drainage facility....

 Open the catalog to page 4
Filters for Gas and Liquid Flow Meters/Controllers-5

> Model number identification M2 Pore size Drain connector > Dimensions M2 Filter Fluid connectors 1/4" OD compression type 1/4" OD compression type 1/2" OD compression type 1/4" face seal female 1/4" face seal male 1/4" face seal male !V OD compression type 3/8" OD compression type 8 mm OD compression type 1/2" face seal male 1/4" O-ring face seal blind nut A Viton® 514178 USP/FDA B EPDM 559291 USP/FDA Compression type Face seal male Technical specifications and dimensions subject to change without notice.

 Open the catalog to page 5
Filters for Gas and Liquid Flow Meters/Controllers-6

Bronkhorst High-Tech designs and manufactures innovative instruments and subsystems for low-flow measurement and control for use in laboratories, machinery and industry. Driven by a strong sense of sustainability and with many years of experience, we offer an extensive range of (mass) flow meters and controllers for gases and liquids, based on thermal, Coriolis and ultrasonic measuring principles. Our global sales and service network provides local support in more than 40 countries. Discover Bronkhorst®! Bronkhorst High-Tech B.V. Nijverheidsstraat 1a NL-7261 AK Ruurlo, The Netherlands

 Open the catalog to page 6

All Bronkhorst catalogs and technical brochures

  1. FLOW-SMS

    6  Pages

  2. EL-FLOW Base

    4  Pages

  3. LOW-ΔP-FLOW

    8  Pages

  4. METAL SEALED

    6  Pages

  5. IQ+FLOW

    6  Pages

  6. MASS-VIEW

    8  Pages

  7. BRIGHT

    4  Pages

  8. E-8000

    8  Pages

  9. MAG-VIEW

    3  Pages

  10. MANI-FLOW

    1  Page

  11. FLOW-ADJUST

    2  Pages

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.