Y13H type inner piston steam valve screw connection

Y13H / Y female piston steam pressure reducing valve Y13H / Y female piston steam valve Product Description Structural features and usefulness This series belongs to the pilot valve piston valve. From the main valve and pilot valve two parts. Mainly by the main valve seat, the main valve plate, piston, cylinder liner, springs and other parts. Mainly by the pilot valve seat, valve, diaphragm, spring, adjusting springs and other parts. By adjusting the outlet pressure adjusting spring pressure setting, the use of outlet pressure sensing diaphragm, the drive piston through the guide opening and closing the valve adjust the main throttle valve flow area size of the parts to achieve the pressureregulator function. Female piston steam valve is mainly used for steam piping, from the vacuum regulator role. main specification and technial parameter  

Nominal pressure(Mpa)	1.6	2.5
Shell test pressure(Mpa)*	2.4	3.75
Seal test pressure(Mpa)	1.6	2.5
Max inlet pressure(Mpa)	1.6	2.5
Output pressure range(Mpa)	0.1-1.0	0.1-1.6
Pressure characteristic deviation (Mpa)P2P	GB12246-1989
Flow characteristics deviation (Mpa)P2G	GB12246-1989
Minimum differential pressure	0.15	0.15
leakage	GB12245-1989

Main parts and material  

Parts	material
body bonnet bottom	WCB
seat disc	2Cr13
liner	2Cr13/25
piston	2Cr13/brass alloy
piston ring	cast rion alloy
guide seat guide stem	2Cr13
diaphragm	1Cr18Ni9Ti
main valve spring	50CrVA
guide valve spring	50CrVA
adjustable spring	60Si2Mn