RELIEF VALVE

摘要

A relief valve which maintains generally constant pressure in a fluid system for a wide range of flow rates through the system. When the valve opens as the pressure in the system exceeds a predetermined value, the flow about the valve plug is allowed to impinge on itself adjacent to the bottom surface of the plug to create a stagnation pressure on the plug which maintains generally constant liquid pressure within the valve fox different plug settings even though the spring force on the plug increases as the flow increases and the plug is lifted further from its seat. -1a-