Check valve is a safety valve which prevent unwanted backflow of water in the opposite direction So it also called as Non-return valve With a check valve, polluted water could prevent to contaminate the water supply Water Nymph Check valve, not only with the polluted water prevention function, also can add a flow restrictor to control the water flow
Flow regulator are used to limit the maximun water flow of shower head or nozzles which install them on Flow regulator or restrictor can match in faucets, kitchen sprays, showerheads and shower hand sprayer to meet the flow requirement, saveing water and energy
