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Our factory requirements are based on
leakage class V in accordance with IEC 60534.

  • YH761P Cascade Multi-stage Pressure Reducing High-Pressure Differential Angle Type Control Valve
  • YH761P Cascade Multi-stage Pressure Reducing High-Pressure Differential Angle Type Control Valve

YH761P Cascade Multi-stage Pressure Reducing High-Pressure Differential Angle Type Control Valve

· Compact structure with S-shaped flow path and low pressure drop
· Wide adjustable range and high-precision flow characteristics
· Excellent dynamic stability, low noise, and anti-cavitation design
· Large spool guide area enhances vibration resistance
· Complies with GB/T4213-2008 standard
· Suitable for high-temperature and low-temperature fluid control
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Product Details

Precision in Flow Control, Excellence from Zhongyuan

  • Product Features
  • ​Applicable Standards
  • Valve Body Component Selection
  • ​Structural Configuration
  • Main Performance Parameters
  • Product Features

    Low pressure drop, high flow rate, wide adjustable range, high-precision flow characteristics

    Lower valve body with lens-type seat structure ensures easy seat replacement and excellent sealing performance

    Simple structure with easy installation/maintenance, suitable for harsh operating conditions

    Multi-spring diaphragm actuator provides compact structure, small size, and high output force

  • ​Applicable Standards


    Chinese StandardAmerican Standard
    Quality assuranceISO9001ISO9001
    Design and manufactureGB12224-2005ASME B16.34
    Flange standardSH3406,HG20596ASME B16.5
    Structure lengthJB/T450ASME B16.10 ISA S75.03
    Inspection and test standardGB/T4213-2008ANSI FCI70-2 IEC60534-2-1


  • Valve Body Component Selection

    Nominal Diameter DNmm2540506580
    inch11.522.53
    Nominal Diameter DNmm100125150200
    inch4568
    Nominal Pressure PNPN150, 220, 260, 320, 420
    ANSICL900, CL1500, CL2500
    ConnectionsFlanged: RJ or lens gasket
    Welding
    Body typeForging angle
    GlandBolt clamp
    Plug typeDN25-DN40Pressure unbalanced structure
    DN50-DN100Pressure balanced structure
    Bonnet tempStandard-17~+230℃
    High Temp (G)-45~-17℃, +230~+566℃
    GasketMetal wound graphite gasket, Grooved metal gasket (316 stainless steel)
    Painting colorLight curry (Epoxy resin group) is standard. No painting for stainless steel body.


  • Structural Configuration

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  • Main Performance Parameters

    Flow characteristicsEqual percentage character (%) and linear character (L)
    Adjustable range50:1 (Cv≥0.25), 30:1 (Cv≤0.16)
    Leakage levelStandard Class IV, Special Class V
    Fundamental errorStandard: ±1.5% (with positioner); Extended: ±2.5% (with positioner)
    BacklashStandard: ±1.5% (with positioner); Extended: ±2.5% (with positioner)
    Dead zoneStandard: ±0.6% (with positioner); Extended: ±1% (with positioner)
    Start point deviation±2% (with positioner)
    Rated travel deviation±2% (with positioner)


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