CE-IB Series Detonation Arrestors

In-Line Unstable Detonation Arrestor with Replaceable Element

Application

The Elmac Technologies^® CE-IB in-line unstable detonation arrestors are designed to prevent propagation of detonations in gas or vapour mixtures. Detonation arrestors are specifically designed for pipelines with a significant distance between the ignition source and the arrestor, or for use where the pipe is rough, bent, obstructed or has section changes. CE-IB unstable detonation arrestors are supplied as complete units ready for direct installation into piping systems.

Principle of Operation

A detonation arrestor uses a crimped ribbon element with small apertures which allows gas or vapour to pass. The elements are designed so that they both attenuate the detonation shock wave, and extinguish the flame. Elmac detonation arrestors are always designed to deal with unstable detonations. In the context of the Pressure Equipment Directive (PED), Elmac detonation arrestors are classified as a piping assembly.

Benefits

• Suitable for unstable detonations, stable detonations and deflagrations
• Large variety of sizes and materials to suit a wide range of applications
• Options available for sour environments
• Replaceable elements
• Bi-directional
• The Elmac technical team can advise on specific location queries

Gas Groups

Elmac detonation arrestors in the CE-IB range are for use with gases in Groups IIA, IIB1, IIB2, and IIB3.

General Layout

Fixing Flanges Body Element Flanges Gaskets Fasteners Element

Material Specifications

Dimensions

Operating Limits

Pressure Drop & Flow Curves

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

Variations

The CE-IB series of in-line unstable detonation arrestors has the following options:

• Flange fixing (ANSI 150, or PN16)
• Female fixing (BSP/NPT)
• Male fixing (BSP/NPT)
• Drain plugs
• Eccentric reducers
• Sockets for instrumentation

Standards Compliance

All flame arrestors 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 arrestors 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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