Explore our ASTM A995 4A Diaphragm Control Valve selection, designed for optimal performance across various applications. With a 4-inch size and compatibility with Class 150 LB and PN20 pressure ratings, these valves deliver robust control capabilities. Equipped with a Single Acting Pneumatic Actuator and a Smart Positioner, they ensure precise and efficient operation. Featuring RF Flange Ends, these valves provide secure and reliable connections, allowing for seamless integration into your systems. Perfect for applications requiring accuracy and dependability, these valves offer unmatched performance and durability.