Midland Industrial Designers

Powder handling valves

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Explosion testing of our range of Rotary Valves is complete and our standard valves are certified as APD devices.

An APD is a valve that can contain an explosion- if a part of your process has an unfortunate explosion, then our rotary valves are certified by a third party, Basseefa, to contain that explosion pressure to 10.5 bar and not transmit a flame.

The testing was done by bolting the test units to a chamber with an explosive powder inside. The powder was ignited with the valve running and high speed cameras and data loggers monitored the internal pressure, temperature and flames at the valve outlet.

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Atex test