Pilot Operated Pressure Reducing Valve for Steam (CY41H)

1) It is a kind of pilot operated pressure reducing valve;
2) Especially be suitable for steam, and for water also;
3) Max. Inlet pressure: 16 bar, 25 bar
4) Outlet pressure (Springs Pressure setting range):
Yellow: 0.2 to 3 Bar
Blue: 2.5 to 7 bar
Red: 6 to 12 bar
5) Diameter: 15 - 200mm
6) Medium temperature: 0 ~ 280 C
7) Max. Inlet to outlet pressure: 20: 1
8) Body material: Cast steel (WCB)
Pressure Adjusment Spring: 60SI2Mn
Pilot Valve: Cast steel
Internal Strainer: Stainless Steel (1Cr18ni9Ti )
Body Gasket: Flexible graphite
Adjustment Screw & Locked Nut: Cast steel
Main Valve Spring: 50CrVA
Main Valve & Main Valve Seat: 2Cr13
Pressure Sensing pipe: Copper
9) As per Germany (DIN), ANSI, GB standards manufactured; Flanged connection as per PN-25, PN-16.Technical specification Materials of main partsItem1520253240506580100125150200PartsMaterialResistance pressure (MPa)2.5Shell test pressure (MPa)3.75BodyWCBSeal test pressure (MPa)2.5CoverWCBMax. inlet pressrure (MPa)1.6Seat2Cr13Outlet pressure range (MPa)0.05~0.3(yellow spring)
0.25~0.7(blue spring)
0.6~1.2(red spring)Valve clack2Cr13Pressure characteristics derivation (MPa)GB 12244Pole2Cr13Flow characteristics derivation (MPa)GB 12244Diaphragm1Cr18Ni9TiLeakage (ml/min)GB 12245Adjusting spring60Si2MnMedium temp. (ºC)-10~285Kv.2.85.58.112172845.560.193.3146180300