Y42X Direct Acting Diaphragm Type Pressure Reducing Valve with Pressure Gauge
Product Description

Brief Introduction.
This series pressure reducing valve is a new type regulating valve which adopts piston to replace the diaphragm. The performance is reliable and it's can be used for a long time. The down pressure can be adjusted according to the requirement, and it can be set at a fixed pressure in the application, which won't be changed as the fluctuation of the up pressure and the flowing rate.
Application
Product Name: Y42X-GVPR12 Direct Action Piston Pressure Reducing Valve.
Pressure Rating: 1.0- 6.4Mpa
Nominal Diameter: DN20-400
Body Material: Steel, CF8
Standard flanges: DIN, ANSI, JIS.
Main Technical Parameters and Indexes of Performance.
| Nominal pressure |
PN1.6Mpa |
PN2.5Mpa |
PN4.0Mpa |
PN6.4Mpa |
| Tested pressure of shell |
2.4Mpa |
3.75Mpa |
6.0Mpa |
9.6Mpa |
| Sealing test pressure |
1.6Mpa |
2.5Mpa |
4.0Mpa |
6.4Mpa |
| Maximum upstream pressure |
1.6Mpa |
2.5Mpa |
4.0Mpa |
6.4Mpa |
| Pressure range of outlet |
0.2-1.0Mpa |
0.2-1.6Mpa |
0.2-2.5Mpa |
0.5-3.5Mpa |
| Minimum differential pressure |
0.2Mpa |
0.2Mpa |
0.2Mpa |
0.4Mpa |
| Medium |
Steam, water, etc. |
| Operating temperature |
425 |
*the shell test does not include membrane and top cover.
Flow Characteristics.
| DN |
15 |
20 |
25 |
32 |
40 |
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 |
400 |
570 |
780 |
1020 |
1500 |
Material of Main Component.
| Name of component |
Material of component |
| Valve body, valve cover, seat cover |
Cast iron, Cast steel |
| Valve seat, |
2Cr13 |
| Valve flap |
2Cr13 |
| Valve rod |
2Cr13 |
| Cylinder sleeve |
2Cr13 /25(hard chrome plating) |
| Piston |
2Cr13 |
| O-shaped ring |
Ding nitrile rubber |
| Sealing encircles |
Ding nitrile rubber |
| Adjusting valve |
60Si2Mn |
Product Details
Main External Dimensions.
| DN |
External Dimension |
| L |
H |
H1 |
| 1.6/2.5 Mpa |
4.0 Mpa |
6.4 Mpa |
1.6 Mpa |
2.5 Mpa |
4.0 Mpa |
6.4 Mpa |
1.6 Mpa |
2.5 Mpa |
4.0 Mpa |
6.4 Mpa |
| 20 |
160 |
160 |
170 |
220 |
220 |
220 |
220 |
90 |
90 |
90 |
90 |
| 25 |
180 |
200 |
200 |
255 |
255 |
265 |
265 |
95 |
95 |
100 |
105 |
| 32 |
200 |
220 |
220 |
255 |
255 |
265 |
265 |
100 |
100 |
100 |
110 |
| 40 |
220 |
240 |
240 |
325 |
325 |
330 |
330 |
115 |
115 |
130 |
130 |
| 50 |
250 |
270 |
270 |
325 |
325 |
330 |
330 |
120 |
120 |
135 |
135 |
| 65 |
260 |
280 |
300 |
330 |
330 |
340 |
355 |
125 |
125 |
140 |
145 |
| 80 |
310 |
330 |
330 |
340 |
340 |
340 |
340 |
135 |
135 |
150 |
160 |
| 100 |
350 |
380 |
380 |
347 |
347 |
360 |
360 |
148 |
148 |
185 |
185 |
| 125 |
400 |
450 |
450 |
560 |
560 |
565 |
565 |
190 |
200 |
200 |
245 |
| 150 |
450 |
500 |
500 |
580 |
580 |
585 |
585 |
205 |
210 |
240 |
280 |
| 200 |
500 |
560 |
560 |
630 |
630 |
635 |
635 |
220 |
245 |
245 |
310 |
| 250 |
600 |
|
|
750 |
|
|
|
270 |
|
|
|
| 300 |
800 |
|
|
780 |
|
|
|
310 |
|
|
|
| 350 |
850 |
|
|
850 |
|
|
|
390 |
|
|
|
| 400 |
900 |
|
|
925 |
|
|
|
420 |
|
|
|
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