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PTFE lined electric control valve


  • Port size:DN20~150, NPS 3/4〞~ 6〞
  • Pressure:PN16 ~ 25 CLASS 150/300LB
  • Medium:Corrosive medium
  • Temperature :-20~150℃
  • Body material:WCB,304SS,316SS
  • Description:
  • PTFE lined electric control valve feature

    PTFE lined electric control valve  is composed of electric actuator,straight through single seat PTFE (PTFE,FEP,PFA is for option) Lined structure. PTFE lined electric control valve contacted with the corrosive medium adopts the corrosion-resistant, anti-aging PTFE high pressure lining fluorine plastic process.PTFE lined electric control valve is capable of controlling the flow of acid, alkali, aqua wang and other highly corrosive media, toxic volatile gas and liquid media.Therefore, PTFE lined electric control valve is widely used in chemical, metallurgy, medicine and other industries.
    PTFE lined electric control valve Features as below:
    1. Good corrosion resistance: the inner cavity of PTFE lined electric control valve body, core, seat are lined with 3mm thick fluorine (PTFE,PEP,PRA) , which can withstand strong corrosive fluid.
    2. Good sealing performance: double sealing with PTFE bellows and packing.
    3. The leakage quantity is little, because the PTFE lined electric control valve core and seat are soft seal, leakage was far below the national Ⅳ level standard.
    4. High adjustment accuracy: PTFE lined electric control valve adopts precise and small pneumatic and electric actuators, small in size and light in weight.
  • PTFE lined electric control valve specification

    PTFE lined electric control valve
    Body type:
    straight through casting globe type
    PTFE lined(PTFE,FEP,PFA is optional)
    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
    PTFE lined electric control valve
    Bonnet type:
    Ⅰ:standard type(-29℃~150℃)
    Packing: V type PFTE packing, flex. graphite packing, etc.
    Gasket: Metal graphite packing
    PTFE lined electric control valve Actuator: Electric: 3810L series smart actuator, PSL series actuator.
  • PTFE lined Electric control valve material

    Component name Control Valve Material
    Body/Bonnet WCB//CF8/CF8M/CF3M
    Lined Material PTFE(PTFE,FEP,PFA is optional)
    Valve spool/Seat 304/316/316L Lined PTFE/FEP/PFA
    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
  • PTFE lined electric 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 PF: standard fluorine lined control valve
    PF4: PTFE lined control valve
    PF46: PEP lined control valve
    PFa: PFA lined control valve
    DN25= NPS1〞=25
    DN50= NPS2〞=50
    D=special material
    Ⅰ:standard type(-29℃~150℃)
    CL150LB=150 LB
    Such as:  Z type Electric control valve,,metal seat, PTFE lined ,PN16, body:  WCB, nominal size:  DN50, type:  ZRHPF4-50CⅠ-16
  • PTFE lined electric ontrol valve performance

    PTFE lined electric control valve
    Flow characteristic
    Linear, percentage, quick open
    Allowable range 30: 1 
    Rated Cv value Percentage CV6.3~400 ,linear CV6.9~440
    PTFE lined electric control valve Allowable leakage Soft seal:  VI grade(foam grade)
    Leakage standard:  GB/T 4213
    PTFE lined electric 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
  • PTFE lined electric control valve actuator parameter

    PTFE lined 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℃
    PTFE lined electric control valve
    Space heater (normal type)
    Non-standard accessories, need special customized notes.
  • PTFE lined electric control valve technical parameter

    Nominal size, DN 20 25 32 40 50 65 80 100 125 150
    Rated flow coefficient, Cv Percentage   8 12 20 32 50 70 100 200 240
    Linear 5 10 16 25 38 63 80 120 220 300
    Travel 16mm 25 mm 40mm 60mm
    Electric actuator PTFE lined electric control valve
    Max. allowable pressure difference,(MPa)
    Type Thrust(N)
    3810L-08 800 2.38 1.52                
    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
    3810L-99 10000                 0.61 0.42