Description: mean flow rate through the valve seat under specified working conditions; Name: valve seat speed
Description: mean velocity of the flow through the valve seat at the specified operating conditions; Name: valve seat velocity
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