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ZZYP Self pressure regulating valve

ZZYPSelf pressure regulating valve ZZYPSelf pressure regulating valve With condenser
Self pressure regulating valve（Without the condenser） Self pressure regulating valve（With condenser）

1.Self pressure regulating valve Product overview

Self pressure regulating valve is a kind of without external energy, using controlled the media's own energy when the power source, is introduced to perform film chamber to produce thrust, throttle control element to achieve automatic adjustment. Comprehensive function can measure, execution, control. In the absence of gas, non electric sites. Widely used in petroleum, chemical, power, light industry, printing and dyeing industry in the automatic control system of gas, liquid and various equipment steam medium pressure regulator (for deceleration, pressure regulating valve after the pressure relief, pressure) (for the valve before the pressure adjustment automatic control). According to different working conditions can choose different structure of the valve body types and different execution mechanism, in order to achieve the best control effect.

2.Self pressure regulating valve Product model

Category Model Category Model
Single seat pressure closed type ZZYP-16～64B Single seat pressure closed type ZZYP-16～64K
Two seater pressure closed type ZZYN-16～64B Two seater pressure closed type ZZYN-16～64K
Sleeve pressure closed type ZZYM-16～64B Sleeve pressure closed type ZZYM-16～64K

PS：
1.Pressure closed type used in pressure regulating valve, when the valve after the pressure increases, the valve is closed, to achieve the purpose of decompression, stabilization。
2.Pressure type used in pressure regulating valve, when the valve after the pressure rises, the valve is opened, in order to achieve the purpose of decompression, stabilization。

3.Self pressure regulating valve Main technical parameters

DN（mm） 20 25 32 40 50 65 80 100 125 150 200
Seat DN（mm） 10 12 15 20
rated flow coefficient Kv 1.8 2.4 4.4 4 11 20 30 48 75 120 190 300 480 760
permissible pressure（MPa） 2.5 2.0 1.6 1.0
PN（MPa） 1.6　4.0　6.4
inherent flow charac Quick open
Ensure that transfer the minimum pressure valve work difference P（MPa） 0.05
Pressure segment range （KPa） 15～50　　40～80　　60～100　　80～140　　120～80 160～220　200～260　240～300　280～350　330～400 380～450　430～500　480～560　540～620　600～700 680～800　780～900　800～1000　900～2000　 　　　
Working temperature ℃ Liquid≤140;氣體≤80；With the condenser and heat sink ≤350
Suitable for medium Low viscosity liquid, gas, steam
Flange size, type PN10、16、40GB9113-88、PN64JB/T7-94；PN10 
structure length According to GB12221-89 standard
accessories Condenser (for medium for steam occasions), such as heat sinks.
Actuator signal interface Internal thread M16×1.5

ps：Pressure segment range can be designed according to user requirements.

4.Self pressure regulating valve Main performance

Control precision ％ ±8
Allowable leakage Hard seal（L/H） Single seat（Ⅳ級）：≤10-4 Rated capacity：Two seat, sleeve（Ⅱ級）、≤5×10-3×Rated capacity
Soft seal（ml/min） DN(mm)
20 25 32 40 50 65 80 100 125 150 200
0.15 0.3 0.45 0.6 0.9 1.7 4.0 6.75

5.Self pressure regulating valve Dimension

Self pressure regulating valve Structure diagram
DN 20 25 32 40 50 65 80 100 125 150 200 250 300
Flange size(B) 383 512 603 862 1023 1380 1800 2000 2200
Flanged end spacing(L) 150 160 180 200 230 290 310 350 400 480 600 730 850

Pressure regulating range (KPa)

 15-140 H 475 520 540 710 780 840 880 915 940 1000
A 280 308
200-500 H 455 500 520 690 760 800 870 880 900 950
A 230
120-300 H 450 490 510 680 750 790 860 870 890 940
A 176 194 280
480-1000 H 445 480 670 740 780 850 860 880 930
A 176 194 280
600-1500 H 445 570 600 820 890 950 1000 1100 1200
A 85 96
1000-2500 H 445 570 600 820 980 950 1000 1100 1200
A 85 96
Approximate weight(Kg) 26 37 42 72 90 114 130 144 180 200 250