YG43H/Y High Sensitivity Piston Steam Reducing Valve

RP-6 YG43H High Sensitivity Piston Steam Reducing Valve
Structure Feature:
This product is mainly used in steam pipes for inlet pressure changes. This series reducing valves belong to the pilot valve piston valve. It is composed of main valve and pilot valve. The main valve of YG43H/Y high sensitivity piston steam reducing valve has the following parts, such as valve seat, main valve plate, piston, springs and other parts. And the pilot valve is made up of valve seat, disc, diaphragm, spring, adjusting spring, etc. The outlet pressure can be set up though the adjusting spring. The changes of outlet pressure can be reflected though the diaphragm. Through the pilot valve opening and closing, the flow area of YG43H/Y high sensitivity piston steam reducing valve can be adjusted to reduce and stabilize the pressure.

Advantages:
This YG43H/Y high sensitivity piston steam reducing valve has been improved greatly. For example, the piston area is increased. The throttle structure and the seal form are changed.  Therefore, this YG43H/Y high sensitivity piston steam reducing valve has the following advantages:
1. The sensitivity of outlet pressure has been improved, which can reduce greatly the pressure deviation caused by upstream pressure changes, flow changes and other factors;  
2. The streamline distribution of YG43H/Y high sensitivity piston steam reducing valve has been improved and reduce the noise has been reduced;
3. The structure of sealing surface has been improved; therefore, the life of the sealing surface has been extended.

Technical Parameters and Performance Indicators of YG43H/Y High Sensitivity Piston Steam Reducing Valve:

Nominal pressure(Mpa)	1	1.6
Shell test pressure(Mpa)	1.5	2.4
Sealing test pressure (Mpa)	1	1.6
The maximum inlet pressure(Mpa)	1	1.6
Outlet pressure range (Mpa)	0.04-0.6	0.04-1.0
Pressure characteristic deviation (Mpa)△Pp2P	GB12246-1989
Flow characteristics of deviation (Mpa)P2G	GB12246-1989
Minimum pressure (Mpa)	0.05	0.07
Leakage	GB12245-1989

Note: Shell test does not include the diaphragm, cap.

Major Parts Material of YG43H/Y High Sensitivity Piston Steam Reducing Valve:

Parts	Material
Valve body, valve cover, valve bottom	WCB
Seat, disc	2Cr13
Cylinder, piston	Al-Fe bronze
Diaphragm	PH15-7Mo
Piston ring	Polyphenyl
Guide valve seat, valve guide clack	2Cr13
Main valve spring	50CrVA
Guiding spring	50CrVA
Adjusting spring	60Si2Mn

Flow Coefficient (CV):

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

Connecting Dimension of YG43H/Y High Sensitivity Piston Steam Reducing Valve:

Nominal pressure	Shape size			Connecting dimension
DN	L	H	H1	PN 1.0MPa
				D	K	n-ф	d	C
15	140	160	65	95	65	414	45	12
20	140	160	65	105	75	414	55	14
25	150	168	68	115	85	414	65	14
32	180	185	75	135	100	418	78	16
40	180	185	78	145	110	418	85	16
50	200	193	88	160	125	418	100	16

Statement: this information is just for reference, for detailed information, please contact us.