Explosion chambers are used for measurement of explosion characteristics of flammable dusts, gases, vapors and hybrid mixtures, such as maximum explosion pressure, maximum rate of pressure rise, lower and upper explosibility limits and limiting oxygen concentration. There are two standardized sizes of the explosion chambers for testing dust explosions – 20 liters (our CA 20L™) and 1 m3 (our CA 1M3™). The explosion chamber for gases and vapors has to be larger than 5 liters, so our CA 20L is recommended for this purpose. 
 

APPLICATIONS

Testing methods using the explosion chambers are an essential part of a standard set of tests used by certified bodies, universities and other research organizations to characterize the hazard properties of dusts, gases and vapors. The information received from these tests is critical for design of mitigating and protective measures, such as explosion venting devices, automatic suppression or partial inertization. 

Downward spreading of the flame for 9.5 % by vol. of methane in air	Afterburning of 9.5 % by vol. of methane in air

ADVANTAGES & FEATURES

• Manual or fully automatic operation 
• Robust design with working pressure up to 30 bar, test proofed up to 40 bar f Three types of ignition systems: chemical igniter, adjustable capacitive spark up to 10 J and adjustable permanent spark
• Automatic procedure for dosage of gas samples
• Large opening for easy cleaning of the chambers
• K-type thermocouple embedded in the chamber
• Two dispersion systems embedded in 1 m3 chamber
• Optical probe for flame light intensity measurement
• Optionally equipped for operation with elevated initial temperatures up to 200 °C f Instrumentation suitable for measurements of hybrid mixture explosions

Technological window used for monitoring and/or control of test setup	Evaluation of measured pressure-time curve (upper window) and dp/dt-time plot (lower window)

COMPLIANCE 

• EN 14034 (1-4)
• VDI 2263
• ISO/IEC 80079-20-2:Part 20-2
• ASTM E1226
• ASTM E1515
• EN 15967
• EN 14756
• EN 1839