The RM 550 Unloader Valve Panel Mount is a robust, high-performance pressure control valve designed for professional and industrial pressure washing systems. Engineered to regulate operating pressure and safely divert water flow when the trigger gun is closed, it helps protect pumps and system components from excessive pressure build-up while ensuring reliable, consistent performance.

Manufactured with a durable brass body, the RM 550 is built to withstand demanding working environments and offers excellent resistance to corrosion and wear. Its panel mount design allows for convenient installation and easy adjustment, making it an ideal choice for fixed pressure washer installations, wash bays, vehicle wash systems, and industrial cleaning equipment.

With a maximum pressure rating of 310 bar and a flow capacity of up to 40 litres per minute, the RM 550 is suitable for a wide range of high-output cleaning applications. The valve also supports operating temperatures of up to 90°C, making it compatible with both hot and cold water pressure washing systems.

Key Features

• Heavy-duty brass construction for long service life
• Panel mount design for easy installation and adjustment
• Maximum pressure rating of 310 bar
• High flow capacity up to 40 L/min
• Suitable for hot and cold water systems up to 90°C
• 3/8" female inlet and outlet connections
• Protects pumps and system components by regulating pressure