Product Drawing
Y416X type direct-acting spring diaphragm reducing valves
Structural Features and Usages
This series reducing valve are direct acting diaphragm spring reducing valve. It mainly consists of the regulative spring, diaphragm, piston, Seat, Disc and other parts. It drives disc by diaphragm direct-sensing downstream pressure, controling disc open degree to achieve decompression and pressure stability function.
This product can replace conventional subarea water pipes in the city architecture, high-rise buildings hot and cold water supply system, to save equipment. And it can also be used in the usual hot and cold water pipe networks, to play the role of decompression and stability.
This product regulatation and stability are smoothly, is applied to water and non-corrosive liquids pipelines.
Dimensions & Constructral Diagram
Y416X type direct-acting spring diaphragm reducing valve Constructral Diagram
Main Technical Parameters and Performance Index
| nominal pressure(MPa) |
1.0 |
1.6 |
2.5 |
| shell test pressure(MPa)* |
1.5 |
2.4 |
3.75 |
| sealing test pressure(MPa) |
1.0 |
1.6 |
2.5 |
| maximum input pressure(MPa) |
1.0 |
1.6 |
2.5 |
| output pressure scope(MPa) |
0.2-0.8 |
0.2-1.0 |
0.4-1.6 |
| pressure characteristic deviation (MPa)△P2P |
GB12244-1989 |
| flow characteristic deviation (MPa)P2G |
GB12244-1989 |
| leakage |
0 |
| working temperature |
0°C-80°C |
The Materials of Main Parts
| part name |
part materials |
| Body, Bonnet, Bottom, Cap |
WCB |
| seat |
410 S.S. |
| disc |
410 S.S. |
| stem |
410 S.S. |
| sleeve |
410 S.S./ ASTM A29M 1025 (hard chrome plating) |
| piston |
410 S.S. |
| O-ring |
NBR |
| sealing ring |
NBR |
| diaphragm |
fabric clip NBR |
| regulative spring |
UNS G92600 |
(Cv)Flow Coefficient
| 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 |
(PN1.6-4.0) External Dimensions
| Nominal Diameter DN |
External Dimensions |
| L |
H |
Hl |
| 15 |
160 |
265 |
100 |
| 20 |
160 |
265 |
100 |
| 25 |
180 |
285 |
110 |
| 32 |
200 |
285 |
110 |
| 40 |
220 |
320 |
120 |
| 50 |
250 |
320 |
120 |
| 65 |
280 |
335 |
140 |
| 80 |
310 |
425 |
165 |
| 100 |
350 |
445 |
185 |
| 125 |
400 |
590 |
225 |
| 150 |
450 |
625 |
260 |
| 200 |
500 |
680 |
280 |
| 250 |
650 |
855 |
335 |
| 300 |
800 |
935 |
385 |
| 350 |
850 |
1015 |
430 |
| 400 |
900 |
1095 |
455 |
| 450 |
900 |
1165 |
500 |
| 500 |
950 |
1205 |
525 |