Description: Pressure at the outlet of the safety valve with the valve closed; Name: Safety valve back pressure
Description: pressure at the outlet of the relief valve when the valve is closed; Name: relief-valve back pressure
Description: The EU directive 2014/34 (ATEX) classifies explosion-proof devices into categories in Europe. At the international level, there was introduced the EPL (Equipment Protection Level); Name: Explosion protection Equipment Protection Level (EPL) of the pump