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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.
 

Piston type self-operated regulator

Model:

  • Port size:DN20~300, NPS 3/4〞~ 12〞
  • Pressure:PN16 ~ 100,150LB ~ 600LB
  • Medium:Water,oil,steam,gas
  • Temperature :-40~350℃
  • Body material:WCB LCB CF8 CF3 CF8M CF3M
  • Description:
  • Piston type self-operated regulator Feature

    Piston type self-operated 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 this Piston type self-operated regulator is that it can be suitable for the working place of no power and no pneumatic equipment available, additional,Piston type self-operated regulator can save energy for the end-user, and the pressure is adjustable within the set range.
     

    Piston type self-operated regulator has the following types according to the different working conditions:

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

    Piston type self-operated 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.
     

    Piston type self-operated regulator is designed and manufactured according to the standard of AMSE/API/BS/DIN/GB

  • Piston type self-operated regulator Structure


     

  • Piston type self-operated 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
  • Piston type self-operated regulator technical 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
  • Piston type self-operated 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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