222-4504: Orifice Restrictor

The Orifice Restrictor is a small, cylindrical part with a hole in the center. It is used in fuel pressure regulator valves on unit injector hydraulic pumps to control the flow of fuel. The size of the hole in the orifice restrictor determines how much fuel can flow through the valve. It is made up of strong and durable material, to ensure strength and withstand high operating conditions. Attributes: • Helps to maintain consistent fuel pressure in the unit injector hydraulic pump • Manufactured to precise specifications and are built for durability and reliability Applications: The Orifice Restrictor also helps to prevent overpressure in the fuel system. This is for protecting the fuel system components from damage.