What certificates are required for a manufacturing plant to produce pumps?
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1. Pumps have been removed from the list of products subject to production licensing; explosion-proof electric pumps are required to undergo mandatory certification. So, what qualifications are needed for manufacturers of pumps that are not subject to such mandatory certification? Is it still sufficient to just submit a case to the relevant department? 2. Does an explosion-proof electric pump refer to an electric pump that can be used in explosion-proof areas? I only know that the accompanying motors, control cabinets, instruments, etc. need to be explosion-proof; I don’t understand why the pump also needs to be explosion-proof
A production license for pump explosion protection refers to explosion-proof motors, as well as situations where certain media have a low ignition point and are prone to explosion, etc