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SHANGHAI HUIXUAN VALVE

Mobile:+86-17717520739
Wechat:17717520739
Email:info@shxvalve.com

Address: NO.720, Suide Road, Jiading District,Shanghai, China.
 

ZZY Self-operated pressure regulator

Model:

  • Port size:DN20~300, NPS 3/4〞~ 12〞
  • Pressure:PN16 ~ 100,150LB ~ 600LB
  • Medium:Water,oil,steam,gas
  • Temperature :-40~450℃
  • Body material:WCB LCB CF8 CF3 CF8M CF3M
  • Description:
  • ZZY Self-operated pressure regulator Feature

    ZZY Self-operated pressure regulator 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.

    ZZY Self-operated pressure regulator which can adjust the pressure as the set value with it’s medium own energy and without any outer energy.The most advantages of ZZY Self-operated pressure regulator is that it can be suitable for the working place of no power and no pneumatic equipment available, additional ZZY Self-operated pressure regulator can save energy for the end-user, and the pressure is adjustable within the set range.
     

    ZZY Self-operated pressure regulator has the following types according to the different working conditions:

    ZZYP(single-seat type), ZZYM(sleeve type) and ZZYN(double-seat type), and ZZY Self-operated pressure regulator also has three different covers such as common one, long-neck one and cooling type. For different applications,ZZY Self-operated pressure control valve has three different types of actuators:film/piston/bellows.
     

    ZZY Self-operated pressure regulator has other advantages as smart and accurate regulating,taking up small space and simple operation and it’s widely used in the pressure control of gas,steam or water in petroleum, chemical, electric power, metallurgy, food, textile, machinery, civil construction industry.
     

    ZZY Self-operated pressure regulator is designed and manufactured according to the standard of AMSE/API/BS/DIN/GB

  • ZZY Self-operated pressure regulator Pressure adjusting range


    Note:1. ZZY Self-operated pressure regulator take diaphragm type actuator for example. If the pressure of ZZY Self-operated pressure regulator is 1000~3000KPa, please consult our customer service or sales people
      2.The table above is Pressure Subsection Range. Choose the median around for pressure control. The smaller the pressure range, the higher the precision . Therefore it should be used within the pressure setting range.
      3. If the pressure ratio between before valve and after valve of ZZY Self-operated pressure regulator with the pressure control after valve exceeds 10,it needs multi-stage decompression or two ZZY Self-operated pressure regulator in series (can choose control valve with director except pressure before valve is below 0.8MPa)
      4.It needs special design when the nominal pressure is over 6.3MPa.
      5.This series ZZY Self-operated pressure regulator’s lowest pressure control is 15 KPa.
    • ZZY Self-operated pressure regulator Structure

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

    • ZZY Self-operated pressure regulator 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
    • ZZY Self-operated pressure regulator 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
    • ZZY Self-operated pressure regulator 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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