Check valves 16h11r, 16kch11r PN 16 are lifting valves made of cast iron, which are used in pipeline systems to prevent backflow of the working medium, such as water or steam. The main function of these valves is to automatically close the passage when the supply of the working medium stops, which protects the system from potential damage and ensures its reliability.
Operating principle
Сast iron threaded lift check valves 16h11r, 16kch11r operate on the principle of a spool, which rises under the influence of the pressure of the working medium. When the medium enters the valve, the pressure causes the spool to rise, opening the passage for the working medium. As soon as the pressure drops or the flow stops, the spool falls back onto the seat under the action of gravity and the pressure of the reverse flow. This ensures reliable shut-off and prevents unwanted backflow.