The RB9 is a multi-purpose heat pump equipped with pump flare valve in small, split heat pumps. These valves separate selection of a system for servicing and offer a way to charge refrigerant into a unit. The valve is attached with a restrictor and screen to measure refrigant and filter debris. The incorporation of a restrictor in the valve delivers minimal noise and resonance throughout the unit. This products branch-like design holds the stem within the valve to stop it from releasing when the cap is removed or when the unit is used thus reducing accidents. The combination of valve, restrictor, and screen minimizes material inventory.