Y13H

This series of pressure reducing valve belongs to the pilot piston type pressure reducing valve. By the main valve and pilot valve two parts. Main valve mainly by the valve seat, the main valve plate, piston, cylinder liner, springs and other parts of the composition. The pilot valve is mainly composed of valve seat, valve, diaphragm, spring, adjusting spring and so on. By adjusting the spring pressure to set the outlet pressure, the use of the diaphragm sensing outlet pressure changes, through the pilot valve opening and closing the main valve throttle position over the flow area of the size, to achieve the function of pressure relief. This product is mainly used for steam pipeline, from the role of pressure relief.
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, diameter, drive, etc.. Specific please contact or online advisory contact.

Part name	Part material
The valve body valve cover Gaidi	WCB
Valve seat disc	2Cr13
Cylinder liner	2Cr13/25(Hard chromium plating)
piston	2Cr13/Copper alloy
Piston ring	alloy cast iron
Guide valve stem	2Cr13
diaphragm	1Cr18Ni9Ti
Main valve spring	50CrVA
Pilot valve main spring	50CrVA
Regulating spring	60Si2Mn

Nominal pressure(Mpa)	1.6	2.5
Shell test pressure(Mpa)*	2.4	3.75
Seal test pressure(Mpa)	1.6	2.5
pressure(Mpa)	1.6	2.5
Outlet pressure range(Mpa)	0.1-1.0	0.1-1.6
Pressure characteristic deviation(Mpa)△P2P	GB12246-1989
Flow characteristic deviation(Mpa)△P2G	GB12246-1989
difference	0.15	0.15
Seepage quantity	GB12245-1989

DN	15	20	25	32	40	50
Cv	1	2.5	4	6.5	9	16

Nominal diameter DN	G	L	H	Hl
15	1/2"	140	295	90
20	3-4"	140	330	98
25	1"	160	330	110
32	1-1/4"	180	330	110
40	1-1/4"	200	345	125
50	2"	230	345	125