This product is a high-quality HVAC valve designed to regulate the flow of fluids in your system. With a 1/2" size and a .73CV capacity, it is capable of handling a wide range of fluid volumes. The valve is normally open and has a pressure range of 3-6 pounds, making it ideal for use in enclosed spaces. Its durable construction ensures long-lasting performance, while its compact design makes it easy to install in tight spaces. Whether you're looking to upgrade an existing HVAC system or install a new one, this valve is an excellent choice for any service technician looking for reliable and efficient equipment.