- Spring check valve has a spring loaded stopper pressed against a valve seat. When enough pressure is applied against it, the spring contracts, allowing some fluids to pass. Spring check valves are installed vertically. They are commonly used with pumps
- There are 3 series of KITZ brass check valve: R, F and RFKITZ R brass check valve: applicable with water usage, usually installed horizontallyKITZ F brass steam check valve: applicable with steam usageKITZ RF brass spring check valve: applicable with water usage, installed vertically