Предохранительный клапан головки гидравлического насоса Caterpillar 6344278

The Hydraulic Pump Head Relief Valve is a pressure-regulating valve mounted directly to the head of a hydraulic pump. It acts as a safety device that prevents damage to internal components of the pump and hydraulic system during pressure surges or blockages. When the system pressure rises above the preset threshold, the valve opens to redirect excess hydraulic fluid back to the reservoir or low-pressure side, effectively limiting the pressure. Once the pressure falls back to safe levels, the valve reseats and resumes normal operation.Attributes:• Provided with spring-loaded spool.• Instantaneous response time under pressure rises.• Ensures longevity of pump components and seals. Applications: The Hydraulic Pump Head Relief Valve is a safety component installed on the pump head to protect the hydraulic system from excessive pressure, allowing controlled fluid bypass when the pressure exceeds a set limit.