YGa43H/Y High Sensitivity Large Capacity Steam Reducing Valve

RP-1H RP-6 YGa43H/Y High Sensitivity Large Capacity Steam Reducing Valve
Application and Feature:
This product is mainly used in steam pipes for inlet pressure changes. It is especially applicable to such steam pipeline with large flow change and large inlet pressure variation change. This series reducing valves belong to the pilot valve piston valve. YGa43H/Y high sensitivity large capacity steam reducing valve is composed of main valve and pilot valve. The main 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.
This YGa43H/Y high sensitivity large capacity 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 YGa43H/Y high sensitivity large capacity steam reducing valve has many advantages, such as high sensibility, large flow, and long service life and so on.

Technical Parameters and Performance Indicators of YGa43H/Y High Sensitivity Large Capacity Steam Reducing Valve:

Nominal pressure(Mpa)	1.6	2.5	4	6.4	10
Shell test pressure(Mpa)	2.4	3.75	6	9.6	15
Sealing test pressure (Mpa)	1.6	2.5	4	6.4	10
The maximum inlet pressure(Mpa)	1.6	2.5	4	6.4	10
Outlet pressure range (Mpa)	0.04-1.0	0.05-1.6	0.08-2.5	0.2-3.5	0.5-3.5
Pressure characteristic deviation (Mpa)△P2P	GB12246-1989
Flow characteristics of deviation (Mpa)P2G	GB12246-1989
Minimum pressure (Mpa)	0.07	0.1	0.15	0.4	0.5
Leakage	GB12245-1989

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

Major Parts Material of YGa43H/Y High Sensitivity Large Capacity 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	50	65	80	100	125	150	200	250	300	350	400	500
CV	1	2.5	4	6.5	9	16	25	36	64	100	140	250

Connecting Dimension of YGa43H/Y High Sensitivity Large Capacity Steam Reducing Valve:  Unit：mm

Nominal pressure (DN)	Shape size
	L		H	Hl
	1.6/2.5MPa	4.0MPa
15	160	180	265	85
20	160	180	265	85
25	180	200	280	95
32	200	220	280	95
40	220	240	290	105
50	250	270	300	130
65	280	300	315	145
80	310	330	330	170
100	350	380	405	200
125	400	450	450	225
150	450	500	485	265
200	500	550	570	290
250	650		640	325
300	800		740	360
350	850		810	395
400	900		950	430
500	950		1080	500

Shape Dimension of YGa43H/Y High Sensitivity Large Capacity Steam Reducing Valve: (PN6.4-16.0):                                                           Unit: mm

Nominal pressure (DN)	Shape size
	L		H	Hl
	6.4MPa	10.0/16.0MPa
15	180	180	280	100
20	180	200	280	100
25	200	220	300	115
32	220	230	300	115
40	240	240	315	130
50	270	300	340	135
65	300	340	355	150
80	330	360	370	175
100	380		450	205
125	450		510	235
150	500		555	275
200	550		640	300
250	650		720	335
300	800		830	375
350	850		880	410
400	900		1020	445
500	950		1080	515

Note:
When you order YGa43H/Y high sensitivity large capacity steam reducing valve, the detailed information of product should be stated clearly, such as the model, nominal pressure, nominal diameter, connecting flange standards, the rated flow coefficient, Cv, inlet pressure, adjustment range, suitable medium and the temperature, etc.

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