Powell Valves manufactures non return check valves for various applications. Non-returnable valves received their name from what they do. These values allow fluid, whether in the form of liquid or gas, to flow in only one direction. These one-way valves only restrict the flow in one direction, while allowing full and unimpeded flow in the opposite direction.There are different types of non-return valves such as: spring-loaded, clapper and swing type. These specific valves are used mainly in heating and cooling systems but can also be seen in water systems and boilers. Boiler non-return valves automatically prevent steam backflow. View Powell Valves checklist for Non-Return Valves.
![API 600 Cast Steel Non-Return Valves](/assets/components/phpthumbof/cache/API-600-CS-Non-Return.4526fd7ec5dff0dba214688a8ad32f13.jpg)
![API 600 Pressure Seal Non-Return Valves](/assets/components/phpthumbof/cache/API-600-PS-Non-Return.4526fd7ec5dff0dba214688a8ad32f13.jpg)