YK43X YK43F Pressure reducing valve

YK43X YK43F Pressure reducing valve Product introduction

　YK43X YK43F Pressure reducing valve belongs to pilot piston type pressure reducing valve.YK43X YK43F Pressure reducing valve is mainly used for gas pipeline, such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gases. YK43X YK43F Pressure reducing valve is composed of main valve and pilot valve.Main valve consists of seat, disc, piston, spring and other components.The guide valve mainly consists of seat, disc, diaphragm, spring, adjusting spring and other parts.The outlet pressure is set by adjusting the spring ,which is transfer the outlet pressure changes according to the diaphragm sensor, and the piston is driven through the opening and closing of the guide valve to adjust the flow area of the main valve throttling position, so as to realize the pressure reducing and pressure stabilizing function.

YK43X YK43F Pressure reducing valve material

Part Name	Material
Body/Bonnet/End bonnet	WCB/CF8/CF8M
Seat	2Cr13/304/316
Cylinder sleeve	2Cr13
Piston	2Cr13/Copper
Piston ring	Cast iron/stainless steel
Guide valve seat / stem	2Cr13
Diaphragm	1Cr18Ni9Ti
Main valve spring	1Cr18Ni9Ti
Guide valve sprig	50CrVA
Regulating spring	60Si12Mn

YK43X YK43F Pressure reducing valve material technical parameter

Nominal pressure（MPa）	1.6		2.5		4.0		6.4		10.0		16.0
Shell test pressure（MPa）	2.4		3.75		6.0		9.6		15.0		24
Seal test pressure（MPa）	1.6		2.5		4.0		6.4		10.0		16.0
Max. Inlet pressure（MPa）	1.6		2.5		4.0		6.4		10.0		16.0
Outlet pressure range（MPa）	0.1-1.0		0.1-1.6		0.1-2.5		0.5-3.5		0.5-35		0.5-45
Pressure characteristic deviation（MPa）△P2P	GB12246-1989
Flow characteristic deviation（MPa）△P2G	GB12246-1989
Max. Pressure difference（MPa）	0.15	0.15		0.2		0.4		0.8		1.0
Leakage Level	GB12245-1989 (Soft seat is zero leakage)

Note:Shell test does not include diaphragm and roof.

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