concaCONCOA has been the industry leader in manufacturing precision gas controls for a quarter century. CONCOA recognizes that people using gases in diverse applications and markets need special attention when it comes to equipment. Airpower is the official distribution partner for Concoa in Ireland. 

Concoa specialises in Laboraotary Gas Systems, Croygenic Systems and Laser Systems.tury. Concoa specializes in gas control devices and systems for analytical, scientific, aerospace, environmental, pharmaceutical, electronic, medical, petrochemical, and metalworking applications. Introducing new gas control products and systems serving existing applications and developing custom solutions as new needs emerge. Specialist products include single and dual stage regulators for varied pressures and purities, switchover and manifold systems, flowmeters, blenders, valves, filters and flashback arrestors, gauges and leak detectors, purges and hoses, traps, and accessories.


Laboratory Gas Control Soloutions Under One Roof

CONCOA’s full line of laboratory equipment allows you to outfit your entire operation with the most reliable gas control equipment available today. The laboratory system encompasses Remote Gas Monitoring, Electronic Switch Overs, Point of Use Panel Systems (53 & 54 Series), Generator Back Up, Automatic Switchovers(Brass, Stainless Steel, High Pressure), Alarm Systems    (Advantium 1 &Advantium 2), Flow Controls (Series 1, Series 2, Series 3, Series 4), and Flowmeters.


Cryogenic Gas Systems

CONCOA cryogenic systems are designed to maintain the pressure and flow of demanding applications. Liquid cylinder performance is often misunderstood. The liquid cylinder specifications typically list gas phase withdrawal in the range of 350-400 cfh. However, in practice the maximum sustainable flow rate without pressure drop is only 200-250 cfh. The limiting factor is often the cylinder’s pressure building coil circuit. To overcome this condition the user may use the liquid withdrawal valve connected to an external vaporizer. Flow rates of 700-800 cfh are achievable for a couple of hours before the liquid cylinder’s pressure building circuit is saturated and pressure falls.

As illustrated below CONCOA has packaged the 630 series cryogenic manifold, 629 series vent kit and an auxiliary pressure building circuit to extend liquid cylinder’s performance to over 4,000 cfh. This is achievable by using the regulated gas phase from an additional cylinder to push liquid out of each supply cylinder connected to the 630 manifold. Regardless of the volume of liquid pushed out of the cryogenic, manifold the vaporizer must be sized 1.5 times the desired flow capacity. Ambient temperature is vital to the vaporizer’s performance so location and geography must be considered.


A continuous operation is achievable when coupled with CONCOA’s IntelliSwitch series automatic switchovers. The bottom line is CONCOA cryogenic systems deliver the results.The Concoa Complete Cryogenic Gas system encompasses the Concoa 643 IntelliSwitch II, Concoa 550 Vaporizer, Concoa 629 Vent Kit, Concoa Cyrogenic Manifold 630, and Concoa 56H Pressure Builder.

Laser Welding Gas Systems

CONCOA welding and shielding gas systems are designed to deliver sufficient flow to protect the cooling weld and maintain precise blend tolerances, which offer substantial cost savings over traditional helium shielding applications. Once the plasma is established, the gas begins to distribute the heat radially toward the work piece. Gases with a low thermal conductivity, such as argon, exhibit a narrow arc with a high inner core temperature that produces a deep funnel penetration profile. Gases with a higher thermal conductivity like helium transfer more heat peripherally, which produces a wider, but shallower penetration profile. CONCOA’s BlendMaster 1000 offers infinite adjustment from 0-100%, which enables the operator to fine-tune the heat transfer and penetration characteristics of the shielding gas.

conca5In hybrid welding applications, it may be necessary to supply a plasma suppression gas and a trailing gas. Argon is used for most metals. Argon offers smooth arc starting characteristics due to its low ionization potential. Helium is used in applications requiring better plasma suppression and heat transfer. Helium has a higher ionization potential than argon, therefore increasing the heat input for joining thicker and higher thermally conductive materials.

Depending upon joint design and part fit-up, a mixture of argon and helium may be used because it offers the benefits of each gas. Series 5237 flowmeter regulators offer argon flow rates of 0-60 SCFH and 0-200 CFH for helium, which makes it the right choice for point-of-use pipe-line applications. Series 5270 is designed for local control from liquid cylinders or high-pressure 12-pack sources. The rendering on the right illustrates a typical laser welding gas supply system for helium/argon mixtures. Concoa’s Laser Welding System encompasses Autoswitches 636 Series, Gas Blender, Relief Valve and Switch Over.


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