Zhejiang yongsheng technology co.,ltd.
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Place of Origin: | Zhejiang, China (Mainland) |
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Self Operated Micro Pressure Automatic Control Valve with -20 - +150 Work Temp
Self-operated micro-pressure single-seat control valve
ZZV Series of Self-operated Micro Pressure Control Valve, there is no need for any external power source, only used fluid own energy to adjusted the valve opening automatically, The valve uses the regulating mechanism which has quick open flow characteristic of balanced single-seat valve, without packing and frictionless movable components internal, it makes fluid pressure stable, high precision adjusting, which could control micro pressure conditions and make sure safe and reliable sealing performance, arbitrary adjust of set value could be also achieved during operation. So it is widely used for the micro pressure automatic regulation sites of all kinds of fuel, half-finished petroleum of the industrial furnace burning system, oil tank stocking protective gas and heat treatment protective gas etc.
Characteristics
1. Without any external driving energy, low cost
2. Simple structure, little maintenance work;
3. The set point can be adjusted and the range is wide, convenient for the user to do continuous adjustment;
4. Using the pressure balance valve structure, ensure the constant pressure of medium;
5. Body pressure, convenient pipe installation
6. No packing, frictionless movable components, sensitive control, high control precision.
Specifications and technical parameters
1. Main technical parameters of ZZV standard Table 1
DN(mm) |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
Rated flow coefficient Kv |
3.2 |
6.3 |
10 |
16 |
25 |
40 |
63 |
100 |
160 |
250 |
400 |
Rated travel L(mm) |
10 |
20 |
30 |
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Actuator type |
Diaphragm type:600,400,200cm2(choose actuator according to pressure) |
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PN(MPa) |
1.0,1.6 |
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Inherent flow characteristic |
Quick opening |
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Action type |
Press to close (control outlet), press to open (control inlet) |
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Structure type |
Single seat pressure balance type |
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Inherent adjustable ratio R |
30 |
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Regulation accuracy (%) |
±5 |
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Medium temperature () |
Gas120 |
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Allowable leakage |
,Zero leakage (soft sealing) |
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Flange connection |
PN1.6MPa according to HG/T20592-2009 RF,Raised surface |
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Pressure regulating range (KPa) |
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