Nozzle Check Valve for Non-Slam Flow Control
Learn how nozzle check valves, also known as axial flow or non-slam check valves, use a spring-assisted axial disc to reduce reverse-flow velocity, valve slam, noise, and pressure-surge risk in pump discharge and high-flow pipeline systems. The guide explains their working principle, flow path, sealing options, material selection, pressure-loss considerations, installation limits, and key sizing factors for power, water, desalination, oil and gas, and industrial process applications.
Lift Check Valve Structure, Working Principle & Applications
Learn how lift check valves use pressure differential, guided vertical disc movement, gravity, spring force, or back pressure to prevent reverse flow in pressurized pipeline systems. The guide explains lift check valve structure, working principle, horizontal and vertical installation requirements, flow stability, pressure-loss considerations, water-hammer limitations, and key selection factors for steam, oil, gas, boiler feed, refinery, and industrial process applications.