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Certification:CE,TRCU,ISO9001
High Precision Pilot Operated Control Valve , 150 lb Pressure Pneumatic Control Valve
Self-operated pressure single-seat control valve with pilot
ZZZYP Series of Self-operated Pressure Control Valve With Pilot, 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.
Characteristic:
1.It’s without any external driving energy, and low equipment cost;
2.Simple structure&small maintenance workload;
3.Pressure set point adjustment is convenient
4.Taking pressure from body,and pipeline installation is convenient;
5.Sensitive control&high control precision
1.Main technical parameters 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 |
||||||||
|
Actuator type(cm2) |
200 |
400 |
600 |
||||||||
|
PN(MPa) |
1.6 |
||||||||||
|
Inherent flow characteristic |
Quick opening |
||||||||||
|
Action type |
Press to close (control outlet), press to open (control inlet) |
||||||||||
|
Structure type |
Single seat |
||||||||||
|
Inherent adjustable ratio R |
30 |
||||||||||
|
Regulation accuracy (%) |
±5 |
||||||||||
|
Reduction ratio |
500︰1 |
||||||||||
|
Medium temperature (℃) |
Gas＜120℃ |
||||||||||
|
Allowable leakage |
Ⅵ,Zero leakage (soft sealing) |
||||||||||
|
Flange connection |
PN1.6MPa according to HG/T20592-2009 RF,Raised surface |
||||||||||
|
Pressure regulating range (KPa) |
0.25～3,0.5～5,3～10,5～14,10～20,20～30 25～40,40～55,50～70,70～85,80～100 |
2.Main technical parameters KV≤7 Table 2
|
DN(mm) |
15 20 25 |
|||||||
|
Seat diameter dn(mm) |
20 |
|||||||
|
Rated flow coefficient Kv |
0.2 |
0.32 |
0.5 |
0.8 |
1.2 |
2.0 |
3.2 |
7 |
Note:1.Production can be according to customers’ special requirements;
2.Flange can be produced according to ANSI,JIS, etc.;
3.When the flow is small the diameter stays unchanged; use valve throttling device to achieve customers’ requirements.
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