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YGa43H/Y High Sensitivity Large Capacity Steam Reducing Valve

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.

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