“Pressure reducing valve,
Both side Flange OD 100 mm and PCD 74 mm

Type:S-K-411C-ST2D-H
Size: 20A Fluid: Air
P1:2.45-2.7 P2: 0.78 Mpa
Serial Number:B45137
Manufacturer: SYNKYO SEISAKUSHO CO LTD,OSAKA,JAPAN” SYNKYO SEISAKUSHO.S-K-411C-ST2D-H.NA