Ball Valve Series
Description
The ZSHZ/ZDRZ series pneumatic/electric eccentric rotary valve consists of a pneumatic piston actuator or electric actuator and an eccentric rotary valve. This valve is an rotary travel control valve that controls fluid by rotating a partial ball valve disc around an eccentric axis. The ball and sealing ring feature a unique eccentric structure, offering a compact structure, excellent shut-off performance, and long service life. It integrates both control and shut-off functions.
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High regulating accuracy with stable flow control.
Low wear rate and long service life.
Suitable for viscous fluids and not easy to clog.
Compact structure and convenient maintenance.
Eccentric rotary valves are mainly used for flow regulation and shut-off in pipelines in chemical, metallurgical and other industries. They feature cast steel / stainless steel valve bodies and eccentric plugs, paired with soft seal / metal seal assemblies, and can be equipped with pneumatic / electric / rolling diaphragm actuators. The eccentric structure reduces wear between the plug and seals, ensuring reliable sealing.
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Nominal diameter(mm) |
25 |
40 |
50 |
80 |
100 |
150 |
200 |
250 |
300 |
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|
Rated Kv |
Whole cavity |
12 |
25 |
43 |
115 |
200 |
430 |
730 |
1100 |
1500 |
|
60% cavity |
7 |
15 |
26 |
70 |
120 |
260 |
440 |
670 |
900 |
|
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40% cavity |
4.8 |
10 |
17 |
46 |
80 |
170 |
290 |
450 |
600 |
|
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Nominal pressure |
ANSI 150、300、600；PN1.6、4.0、6.4MPa |
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Flow characteristic |
Approximately linear(linear and equal percentage characteristics require a valve positioner) |
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Suitable temperature |
Metal seat：-195~400℃；Soft seat：Optional range from -45 to 200°C |
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Rated angle |
90°、50° |
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Allowable leakage level |
Hard seal(IV)、Soft seal(VI) |
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Inherent rangeability |
100:1 |
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Connect type |
Flange、Wafer |
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Surface coating |
If body material is carbon steel, color is gray（Epoxy） If body material is stainless steel, uncoated |
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YSM high-performance regulating valves, with a wide range of structural valve internals that cover various operating conditions in a one-stop solution, provide long-term stable and reliable operation, ensuring precise regulation and efficient operation of the system.
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