German interpak valves interpak models interpak prices

With a constant pressure differential across the interpak valve, the flow rate of a standard valve changes little when the opening varies over a wide range, but changes sharply at a certain opening, indicating poor regulation performance. A control valve adjusts the valve core stroke according to the direction and magnitude of the signal to change the valve's resistance coefficient, thereby achieving flow regulation. Control valves are divided into manual and automatic types, with various subtypes exhibiting different regulation performances. Automatic control valves include self-operated flow control valves and self-operated differential pressure control valves. i