Hebei Lufeng Piping Equipment Co., Ltd.
Carbon /Alloy steel pipes, ERW steel pipes, API 5L LSAW&SSAW, ASME B16.9/MSS SP-75 BW pipe fittings, ASME B16.5/16.47 steel flanges, ASME B16.11/MSS SP-97 forged fittings, Knife gate valves, Butterfly
Back-flow safety valve is mounted on the liquidoid refluence pipeline of the pan pump’s outlet of the liquefied petroleum gas station, when front pump pressure exceeds the stipulated value, the valve will open auto matically and lead to safe return of the liquid so that ensures the safe operation of equipments and pipelines.