Control Valve,API 6A Valve,API 6D Valve-Cepai Group
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CEPAI GROUP CO., LTD.

Mobile:+86-17717522891
Wechat:17717522891
Tel:+86-21-54891500
Email:aires@cepai.com 

Headquarter: 15F, NO.2281, West Zhongshan Road, Shanghai, China.
Factory: No.333 West Jianshe Road, Jinhu Industrial Park, Huaian City, Jiangsu Province, China

Self regulating Pressure Control Valve

Model:ZZY

  • Port size:DN20~300, NPS 3/4〞~ 12〞
  • Pressure:PN16 ~ 25 CLASS 150/300LB
  • Medium:Water,oil,steam,gas
  • Temperature :-40~450℃
  • Body material:WCB LCB CF8 CF3 CF8M CF3M
  • Connection:Flange
  • Position type:
  • Characteristic:Quick open
  • Voltage:No
  • Other:Different standard is optional
  • Self regulating Pressure Control Valve Feature

    Self regulating Pressure  control valve can change differential pressure and flow before and after the valve to keep the pressure before (or after) the valve at a constant level, using the self energy of the medium to be controlled as the power source, without external power. It features flexible action, good seal property and low fluctuation of the pressure set point. It's widely used for the automatic control of the pressure-reducing stabilization and pressure-relief stabilization for the gases, liquid and steam.

    Self regulating Pressure Control Valve has other advantages as smart and accurate regulating,taking up small space and simple operation and Self regulating Pressure Control Valve is widely used in the pressure control of gas,steam or water in petroleum, chemical, electric power, metallurgy, food, textile, machinery, civil construction industry.

    Self regulating Pressure Control Valve is designed and manufactured according to the standard of AMSE/API/BS/DIN/GB

  • Self regulating Pressure Control Valve Pressure adjusting range


     
  • Self regulating Pressure Control Valve Structure

    ZZYP Single seat self-operated regulator structureZZYP Single seat self-operated regulator

  • Self regulating Pressure Control Valve Material

    Component name Control Valve Material
    Body/Bonnet WCB/WCC/WC6/CF8/CF8M/CF3M
    Valve spool/Seat 304/316/316L(overlaying stellite alloy)
    Packing Normal:-196~150℃ is PTFE,RTFE,>230℃ is flexible graphite
    Gasket Normal:Stainless steel with flexible graphite,Special:Metal tooth type gasket
    Control valve stem 2Cr13/17-4PH/304/316/316L
    Diaphragm Cover Normal:Q235,Special:304
    Diaphragm NBR with reinforced polyester fabric
    Spring Normal:60Si2Mn,Special:50CrVa
  • Self regulating Pressure Control Valve parameter

    Nominal diameter
    DN(mm)
    20 25 32 40 50 65 80 100 125 150 200 250 300
    Coefficient(KV) 5 8 12.5 20 32 50 80 125 160 320 450 630 900
    Rated stroke(mm) 8 10 12 15 18 20 30 40 45 60 65
    Nominal diameter
    DN(mm)
    20
    The seat diameter
    DN(mm)
    2 3 4 5 6 7 8 9 10 12 15 20
    Coefficient(KV) 0.02 0.08 0.12 0.20 0.32 0.5 0.80 1.20 1.80 2.80 4.0 5
    Nominal pressure MPa 1.6,2.5,4.0,6.4(6.3)/2.0,5.0,11.0
    Bar 16,25,40,64(63)/20,50,110
    Lb ANSI:Class150、Class300、Class600
    pressure range
    KPa
    15~50、40~80、60~100、80~140、120~180、160~220、200~260、
    240~300、280~350、330~400、380~450、430~500、480~560、540~620、
    600~700、680~800、780~900、880~1000、900~1200、1000~1500、
    1200~1600、1300~1800、1500~2100、
    Flow characteristic Quick opening
    Adjust the accuracy ±5-10(%)
    Working
    TemperatureT(℃)
    -60~350(℃)    350~550(℃)
    Leakage Class IV;Class VI
  • Self regulating Pressure Control Valve Outline dimension

Nominal diameter
DN(mm)
20 25 32 40 50 65 80 100 125 150 200 250 300
B 383 512 603 862 1023 1380 1800 2000 2200
L(Pn16、25、40) 150 160 180 200 230 290 310 350 400 480 600 730 850
L(PN64) 230 260 300 340 380 430 500 550 650 775 900
pressure range
KPa
15~140 H 475 520 540 710 780 840 880 940 950
A 280 308
120~300 H 455 500 520 690 760 800 870 900 950
A 230
280~500 H 450 490 510 680 750 790 860 890 940
A 176 194 280
480~1000 H 445 480 670 740 780 780 850 880 930
A 176 194 280
Weight (Kg)
(PN16)
26 37 42 72 90 112 130 169 285 495 675
 

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