MB-IB Series

Microbore In-Line Deflagration Arresters

Application

Elmac Technologies^® MB-IB series of microbore flame arresters is specifically designed for the protection of gas sampling and analysis equipment where flammable vapours are present. Many other applications involving small bore pipework can be protected from explosion risk using microbore arresters.

Principle of Operation

A flame arrester uses an element with small apertures which allows gas or vapour to pass. If the apertures are smaller than the maximum experimental safe gap (MESG) for the gas or vapour then a flame cannot pass through the arrester, and is subsequently contained or extinguished.

Benefits

• Available in 15mm and 20mm nominal bore
• Suitable for gas groups up to IIB3
• Available in carbon steel or stainless steel
• The Elmac technical team can advise on specific location queries

Gas Groups

Elmac microbore flame arresters in the MB-IB range are for use with gases in Groups I, IIA, IIB1, IIB2, and IIB3.

General Layout

Body Element Body Element Core End Connection

Material Specifications

Dimensions

Operating Limits

Pressure Drop & Flow Curves

Pressure drop information and flow curve charts for the MB-IB Series arresters can be found in the MB-IB product datasheet in the Data Centre.

Variations

The MB-IB series of in-line microbore flame arresters has the following options:

• 15mm and 20mm nominal bores
• Female fixing (BSP/NPT)
• Carbon Steel and Stainless Steel models

Standards Compliance

All flame arresters have been tested and certified in accordance with national or international standards. Actual device performance is verified in the Elmac Technologies "state of the art" in-house test facility.

Elmac Technologies has been independently assessed by a notified body against the requirements of the ATEX Directive 94/9/EC. Elmac flame arresters meet the criteria and are supplied with CE and EX markings, an EC Declaration of Conformity and an EC Type Examination Certificate.

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