With todays weather we experience hot and cold conditions. On a hot summers day there is nothing like a freezing cold air conditioning system to keep you chilled. The expansion valve is part of an expansion device that is usually formed by a brass valve. The purpose of this valve is to only allow a small amount of refrigerant to pass though at any time. This refrigerant is then passed through into the evaporator. The valve itself alters accordingly to allow a specific amount of refrigerant through depending on the evaporators temperature. We stock a variety of air conditioning parts for all makes and models of vehicle, stocking popular brands such as Valeo, Nissens, and Four Seasons. At Aceparts.co.uk we stock a wide range of quality expansion valves for all types of cars and vans, so we're 99.9% sure we will have the expansion valve you require. Be sure to order online with Aceparts for a hassle free, money saving experience.