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

ZRHP Electric single seat control valve


  • Port size:DN20~200, NPS 3/4〞~ 8〞
  • Pressure:PN16 ~ 100,150LB ~ 600LB
  • Medium:Water,oil,steam,gas
  • Temperature :-196~450℃
  • Body material:WCB LCB CF8 CF3 CF8M CF3M
  • Description:
  • ZRHP Electric single seat control valve Feature

    01.ZRHP Electric single seat control valve adopts the top guide structure, compact structure, S streamlined fluid path, large flow, small pressure differential loss, wide adjustable range and accurate flow control.
    02.Large guide area in ZRHP Electric single seat control valve spool guiding part, characterized with excellent anti-vibration performance
    03.The intelligent control module of ZRHP Electric single seat control valve is built into the electric actuator,without external positioner
  • ZRHP Electric single seat control valve Specification

    Electric control valve
    Body type:
    straight through casting globe type
    Spool type: non-balanced single seat plug type
    Nominal size: DN20~200,、 NPS 3/4〞~ 8〞
    Nominal pressure: PN16 ~ 100、 CLASS 150LB ~ 600LB
    Connection: flange: FF、RF、MF、RTJ
    Welding: SW、BW
    Flange dimension: According to to IEC 60534
    ZRHP Electric single seat control valve Bonnet type: Ⅰ:standard type(-20℃~230℃)
    Ⅱ:Radiator type: (-45℃~ high than 230℃ occasion)
    Ⅲ:Low temperature extended type(-196℃~ -45℃)
    Ⅳ:Bellow seal type
    Ⅴ:Warm insulation Jacket type
    Packing: V type PFTE packing, flex. graphite packing, etc.
    Gasket: Metal graphite packing
    Actuator: Electric: 3810L series smart actuator, PSL series actuator.
  • ZRHP Electric single seat control valve structure

  • ZRHP Electric single seat 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
    Bellows 304/316/316L
    Gasket Normal:Stainless steel with flexible graphite,Special:Metal tooth type gasket
    Control valve stem 2Cr13/17-4PH/304/316/316L
  • ​ZRHP Electric single seat control valve type code

    Z Actuator H Structure Nominal size Body material Bonnet type Nominal pressure
    Z series control valve 
    R: electric 3810L actuator
    D: electric PSL actuator
    H:direct travel P:  (standard type)     meat sealing           single seat
    PF: soft sealing
    single seat
    PL: single seat
    cage type
    PG: radiator single seat type
    PV: bellow seal
    single seat
    PD: low temperature single seat
    DN25= NPS1〞=25
    DN50= NPS2〞=50
    D=special material
    Ⅰ:standard type(-5℃~230℃)
    Ⅱ:Radiator type: (-45℃~ high than   230℃ occasion)
    Ⅲ:Low temperature       extended type
    (-196℃~ -45℃)
    Ⅳ:Bellow seal type
    Ⅴ:Warm insulation  Jacket type
    CL150LB=150 LB
    Such as:  Z type electric single seat control valve,standard type bonnet,metal seat, PN16, body:  WCB, nominal size:  DN50, type:  ZJHP-50CⅠ-16
  • ​ZRHP Electric single seat control valve Performance

    Electric control valve Flow characteristic Linear, percentage, quick open
    Allowable range 50: 1 (CV<6.3 30: 1)
    Rated Cv value Percentage CV1.6~630 ,linear CV1.8~690
    Electric control valve Allowable leakage Metal seal:  IV grade(0.01% rated capacity)
    Soft seal:  VI grade(foam grade)
    Leakage standard:  GB/T 4213
    ZRHP Electric single seat control valve Performance
    Intrinsic error (%) ±1.0
    Return difference(%) ≤1.0
    Dead zone(%) ≤1.0
    Difference from beginning to end point(%) ±2.5
    Rated travel difference(%) ≤2.5
  • ​ZRHP Electric single seat control valve specical requirement

    Special test Material penetration flaw detection (PT), radiator test (RT), flow characteristic test,
    low temperature test.
    Special treatment Trim nitrogen treatment, seat hard alloy treatment.
    Special rinse Degreasing and dehydration treatment
    Special condition Special piping or connection, vacuum condition, S.S fastener, special coating.
    Special dimension Customized face to face length or dimension
    Test and inspection Third party test report
  • ​ZRHP Electric single seat control valve actuator parameter

    Electric control valve Type\ Method Electric actuator
    3810L series
    Intelligent integrated type
    Usage Regulating
    Air supply pressure or Power supply voltage Power: AC 200V±10%  50Hz
    Or Power:  AC 380V±10% 50Hz
    Connector Normal type:  cable inlet 2-PF(G1/2〞)
    Explosive proof:  Protection jacket PF(G3/4〞)
    Direct action Input signal increase, stem descend, valve close.
    Reaction Input signal increase, stem ascend, valve open.
    Input signal Input/output4~20mA.DC
    Lag ≤0.8%FS
    Linear type +1%FS
    Environmental temperature Standard type: -10℃~+60℃
    With space heater : -35℃~+60℃
    Explosive proof: -10℃~+40℃
    Elecctric control valve Accessories Space heater (normal type)
    Non-standard accessories, need special customized notes.
  • ​ZRHP Electric single seat control valve technical parameter

    Seat diameter(mm) 10 12 15 20 25 32 40 50 65 80 100 125 150 200
    Rated Cv Percentage 1.6 2.5 4.0 6.3 10 16 25 40 63 100 160 250 400 630
    Linear 1.8 2.8 4.4 6.9 11 17.6 27.5 44 69 110 176 275 440 690
    Nom. size Travel Option flow characteristic Cv. (★standard  ●recommanded  ○customized)
    DN20 16mm                    
    DN32 25 mm                
    DN65 40mm                    
    DN125 60mm                    
    Electric actuator ZRHP Electric single seat control valve
    Metal sealing max. allowable pressure difference (MPa)
    Type Thrust(N)
    3810L-08 800 6.4 5.5 3.5 2.38                    
    3810L-20 2000 6.4 6.4 6.4 4.77 3.05 1.86 1.19 0.76            
    3810L-30 3000           2.79 1.79 1.14            
    3810L-50 5000           4.66 2.98 1.91 1.13 0.6 0.47      
    3810L-65 6500                 1.35 0.8 0.57 0.39 0.26 0.16
    3810L-99 10000                       0.61 0.42 0.20
    3810L-160 16000                       0.97 0.67 0.35