Ball Valve Series
Description
The ZSHOY/ZDROY series O-type metal-sealed shut-off ball valve adopts a two-piece ball valve structure for small diameters and a three-piece ball valve structure for larger diameters. The valve body comprises a main body and secondary body, with a full-bore ball design for a high rated flow coefficient and low flow resistance. It adopts a simple structure, compact size, and lightweight design.
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Anti‑blow‑out valve stem design for safe and reliable operation.
In fully open and fully closed positions, the sealing surfaces are protected from erosion and cavitation.
Preloaded packing design delivers improved sealing performance.
Metal-sealed ball valves feature high pressure resistance, high temperature resistance and strong shearing resistance.A solid ball is adopted to avoid deformation under high pressure.The ball surface is hardened by coating and lapped with matching seats.The valve stem seal uses preloaded graphite packing to minimize the risk of leakage.
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DN (mm) |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
|
Rated Flow Coefficient Kv |
20 |
38 |
72 |
110 |
170 |
270 |
380 |
510 |
940 |
|
DN (mm) |
125 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
|
Rated Flow Coefficient Kv |
1400 |
2200 |
3500 |
5000 |
8500 |
11000 |
13500 |
17000 |
20500 |
|
PN |
1.6~10.0MPa 、150lb~600lb |
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Inherent Flow Characteristic |
Quick Opening |
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Rated Angle（°） |
0±4°～90±4° |
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Allowable Leakage Class |
Class V, Class Ⅵ |
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Air Supply Pressure Ps（MPa） |
0.4～0.6 |
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Power Supply |
220V.AC 50Hz or 380V.AC 50Hz |
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Flange Connection Type |
PN1.6MPa as per HG/T20592-2009 RF, with body of raised face PN≥4.0MPa as per HG/T20592-2009 FM, with body of female face |
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