Self-Operated Valve Series
Description
The ZZYP-II series self-operated pressure control valve with pilot is an actuator product that requires no external power source, utilizing the energy of the controlled medium itself to achieve automatic regulation. This product employs a single-seat valve with quick-opening flow characteristics for the regulating mechanism, providing stable medium pressure, high adjustment precision, and secure, reliable sealing performance. During operation, the set value can be adjusted arbitrarily.
Share:
No external driving energy required, simple structure.
Adjustable set point with a wide range.
Balanced structure ensures stable pressure.
Low friction, high sensitivity and high regulation accuracy.
It is suitable for applications such as automatic micropressure regulation of fuel gas in combustion systems for industrial furnaces, (nitrogen sealed) protective gas for petroleum intermediate products or storage tanks of oil depots, and protection gas for heat treatment processes.
1. Main Technical Parameters
|
DN (mm) |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
|
Rated Flow Coefficient Kv |
2.5 |
4 |
6 |
8 |
18 |
30 |
45 |
70 |
120 |
200 |
320 |
|
Rated Travel L(mm) |
10 |
20 |
30 |
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|
Main Valve Actuator (cm2) |
200 |
400 |
600 |
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|
PN (MPa) |
1.6、CL150 |
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|
Inherent Flow Characteristic |
Quick Opening |
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|
Action Mode |
Pressure to Close(Control Downstream), Pressure to Open(Control Upstream) |
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|
Valve Structure Type |
Single-Seat |
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|
Inherent Rangeability |
30 |
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|
Regulation Accuracy (%) |
±5 |
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|
Pressure Reducing Ratio |
500︰1 |
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|
Medium Temperature (℃) |
Gas ＜120℃ |
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|
Allowable Leakage |
Ⅵ, Zero Leakage (Soft Seal) |
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|
Flange Connection Type |
PN1.6MPa as per HG/T20592-2009 RF, with the body being Raised Face |
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|
Pressure Control Range (KPa) |
0.3～2.5、0.5～5、2～10、5～20 10～30、20～60、40～80、60～100 |
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2. Main Technical Parameters of ZZYP-II Standard Type KV≤4 Table 2
|
DN(mm) |
15 20 25 |
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|
Seat Diameter (mm) |
20 |
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|
Rated Flow Coefficient Kv |
0.2 |
0.32 |
0.5 |
0.8 |
1.2 |
1.6 |
2.5 |
4 |
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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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