Разгрузочный клапан, 7/8 дюйма Caterpillar 137-8400

An Unloading valve is designed to divert excess fluid flow from the pump outlet back to the reservoir when the system pressure exceeds a certain set value. It typically consists of a pressure relief valve and a directional control valve. When the system pressure reaches the set value, the pressure relief valve opens, allowing the excess fluid to flow through the directional control valve and back to the reservoir.Attributes:• Provided with a spring-loaded that is designed to reseal once the pressure has been relieved• Helps to prevent overloading of the system and protects the components from damageApplications:An Unloading valve is used to prevent catastrophic failures caused by excessive pressure buildup in the hydraulic lines.