Originally known as Elmac Engineering, the company developed its first flame arrester in 1948, for use with town gas, and rapidly established a global reputation for the design, manufacture and supply of products to enhance process safety in a broad range of industrial sectors. These sectors include the global oil, gas and petrochemical industries; bio-fuels, mining, pharmaceuticals and power generation; agro-chemicals and fertilisers; distillers, food, flavours and fragrance companies; waste treatment organisations and special equipment manufacturers (OEMs).

Acquired by KnitMesh in 2001, and re-branded 'Elmac Technologies' in 2007 to reflect better the high levels of innovation and enhanced protection offered by its products, Elmac Technologies has grown to become one of the premier brands in the global market for flame arresters and low pressure venting equipment.

Flame Arresting

AVA Series  End Of Line Deflagration Arrester

AVA Series

End Of Line Deflagration Arrester With Replaceable Element

The Elmac Technologies® AVA series end-of-line deflagration arresters are designed to be installed at the end of a pipeline or exit vent from a vessel, where the ignition source is external, to provide protection against atmospheric deflagration.

FE-EXH Series  End Of Line Deflagration Arrester With Replaceable Element

FE-EXH Series

End Of Line Deflagration Arrester With Replaceable Element

The Elmac Technologies® FE-EXH series end-of-line deflagration arresters are designed to be installed at the end of a pipeline or exit vent from a vessel, where the ignition source is external, to provide protection against atmospheric deflagration.

AVC Series  End Of Line Deflagration Arrester With Replaceable Element

AVC Series

End Of Line Deflagration Arrester With Replaceable Element

The Elmac Technologies® AVC series end-of-line deflagration arresters are designed to be installed at the end of a pipeline or exit vent from a vessel, where the ignition source is external, to provide protection against atmospheric deflagration.

SV Series  Light Duty End Of Line Flame Arresters With Fixed Elements

OSV Series

Light Duty End Of Line Flame Arresters With Fixed Elements

The Elmac Technologies® SV series of light duty end-of-line deflagration arresters is designed for installation at the end of a pipeline or on an atmospheric vent from vessels where flammable gases or vapours may be present. SV arresters provide an economical solution for situations where a simple light weight product is required. Typical applications include gas purging of equipment, sample lines and instrumentation lines.

SVE Series Light Duty End Of Line Flame Arresters With Fixed Elements

SVE Series

Light Duty End Of Line Flame Arresters With Fixed Elements

The Elmac Technologies® SVE series of light duty end-of-line deflagration arresters is designed for installation at the end of a pipeline or on an atmospheric vent from vessels where flammable gases or vapours may be present. SVE arresters provide an economical solution for situations where a simple light weight product is required. Typical applications include gas purging of equipment, sample lines and instrumentation lines.

FE-IE Series End Of Line Deflagration Arrester With Replaceable Element For Use With Pressure/Vacuum Relief Valves

FE-IE Series

End Of Line Deflagration Arrester With Replaceable Element For Use With Pressure/Vacuum Relief Valves

The Elmac Technologies® FE-IE series end-of-line deflagration arresters are designed to be used in conjunction with pressure/vacuum relief valves, to prevent propagation of flames in gas or vapour mixtures. FE-IE arresters are specifically designed to be located below the inlet of a pressure/vacuum relief valve, thereby providing an extra layer of tank protection. FE-IE arresters are supplied as complete units ready for direct installation into piping systems.

Low Pressure Venting

Pressure/Vacuum Relief Valves (Breather Valves) Weight Or Spring-Loaded Pressure/Vacuum Relief Valves

Pressure/Vacuum Relief Valves (Breather Valves)

Weight Or Spring-Loaded Pressure/Vacuum Relief Valves

Direct acting pressure/vacuum relief valves (also known as breather valves, conservation vents, or safety vents) are special types of relief valves which are specifically designed for tank protection. The range includes pressure only, vacuum only and combined pressure/vacuum valves, all available with flanged outlets or vented to atmosphere.

Blanketing Valves Low Pressure Tank Blanketing Valves

Blanketing Valves

Low Pressure Tank Blanketing Valves

Tank blanketing valves offer complete protection to the storage tank product against contamination and to the storage tank itself against rupture or damage. This type of valve is mainly used in the chemical, bulk storage, and pharmaceutical industries to reduce emissions and lower the cost of product loss. In addition to preventing outside air and moisture from entering the storage vessel, a blanket gas pressure reduces the evaporation of the stored product to a negligable amount.

Emergency Relief Vents Pressure-Only And Pressure/Vacuum Emergency Relief Vents

Emergency Relief Vents

Pressure-Only And Pressure/Vacuum Emergency Relief Vents

Elmac Technologies' range of non-sparking emergency relief vents permit access to low pressure storage tanks and provides emergency venting capacity in the event of fire. These vents are used extensively on bulk storage tanks, including floating roof tanks. Sizes range from 10" (250mm) to 24" (600mm). Typical applications include: bulk storage tanks, low pressure gas pipeline systems, digesters, and gas holders

Gauge Hatches Pedal Operated & Lockable Gauge Hatches

Gauge Hatches

Pedal Operated & Lockable Gauge Hatches

Gauge hatches allow easy access to atmospheric liquid storage tanks for manual level measurement (dipping), temperature measurement and sampling. They are available in 'un-lockable' and 'lockable' versions.

Free Vents & Filter Vents Storage Tank Vents

Free Vents & Filter Vents

Storage Tank Vents

Free vents are designed for use on any atmospheric tank to prevent the build-up of internal pressure by allowing atmospheres and vapours to flow freely in tanks or vent riser pipes.

Bursting Discs Forward/Reverse Acting, And Graphite Bursting Discs

Bursting Discs

Forward/Reverse Acting, And Graphite Bursting Discs

Bursting Discs (or rupture discs) are used to protect plant, pipework, and vessels from high levels of overpressure and vacuum. Elmac Technologies® offers a range of bursting discs for different applications and mountings. Disc types available include forward acting, reverse acting, scored, inverted, insulated, and dual-pressure rated. Please contact our Customer Services team to discuss your particular requirements.

Ancillary Equipment

Flashback Guards & Spark Arresters

Flashback Guards & Spark Arresters
 

A conventional flame arrester is not usually a cost-effective way of protecting air intakes or fuel/air intakes on larger burners and oxidizers from the risk of flashback into flammable atmospheres. Flashback guards are normally used for these duties. Spark arresters behave as filters to remove incandescent particles from the process gas stream.

Arrester Elements Arrester Element Spares, Installation & Maintenance

Arrester Elements

Arrester Element Spares, Installation & Maintenance

Spare arrester elements are available for many of the Elmac Technologies® end-of-line and in-line deflagration and detonation arresters (as shown in Tables 1 and 2 below). Although it is hoped that an element never need be replaced due to a deflagration or detonation event, it is often useful to have a spare element for times such as routine maintenance, when elements can be easily swapped out to minimise plant down-time.

Sensors Process Sensors

Sensors Process Sensors

Monitoring flow conditions (temperature, pressure etc.) within a flame arrester can not only provide a source of useful process information, but data streams can also be incorporated into safety systems to detect possible element blockages (indicated by unexpected pressure differentials) or stabilised burning conditons (indicated by unexpected temperature rises).
Elmac in-line deflgration and detonation arresters have options for the inclusion of process monitoring equipment such as thermocouples and pressure transducers.