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700R TYPE CUPLA
■ Using a special steel ball, the metal touch valve system withstands 1000kg/cm2 of ultra-high pressure.
■ Ring lock system is extremely durable against vibration and impact.
 
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日东接头 Nitto Cupla
Features
  • Two-way shut-off CUPLA withstands. 1000kg/cm2 of ultra-high pressure.
  • Ideal for ultra-high pressure equipment such as hydraulic punchers or concrete breakers.
  • CUPLA is connected using a special ring lock system which is extremely durable against vibration and impact.
  • Metal touch valve system is extremely durable and resistant to wear.
Applications
日东接头 Nitto Cupla
Recommended fluid
Applications
Special steel
  • Operating oil
  • Hydraulic equipment and hydraulic piping
  • Hydraulic tools
  •  
    Specifications
    Material
    Special steel
    Size
    3/8",1/2"
    Working pressure(kgf/cm2)
    700
    Maximum pressure(kgf/cm2)
    1,000
    Packing material and
    operating temperature
    Rubber material
    Nitto symbol
    Operation temperature
    Remarks
    Nitrile butadiene rubber
    SG
    -20℃~
    +80℃
    Standard
    material
    Viton
    X-100
    -20℃~+180℃
    Optional
    Type of connection
    Female thread for both socket and plug
    Allowable leak upon
    disconnection
    For 3/8",
    0.05cc/min. at 2kg/cm2
    For 1/2",
    0.5cc/min. at 3kg/cm2
     
    Minimum Cross-Sectional Area
    Model
    700R-3SP
    700R-4SP
    Minmum cross-sectional area(mm2)
    34
    55
     
    Structure
  • When disconnected
  • Characteristically, there is an extremely slight leakage when CUPLA is disconnected due to the metal seal system but it is not a functional problem.
    日东接头 Nitto Cupla
  • When When connected
  • Since there is no packing used in the valve, there is no packing wear even if flow velocity changad quickly.
    日东接头 Nitto Cupla
     
    Interchangeability
    • Different size sockets and plug are not interchangeable.
    Flow Rate/Pressure Loss
    [Measurement Conditions]  
    Fluid: Hydraulic Fluid # 52 Kinetic viscosity: 50 centi-Stokes
    Temperature: 30℃±5℃  Specific gravity: 0.8727×10-3kg/cm3
    日东接头 Nitto Cupla
     
    Precaution
    • There is an extremely slight leakage when CUPLA is disconnected due to the metal touch system.
    • Remove any dust adhering to the socket or plug.
    Dimensions and Weight Tables    
       
    日东接头 Nitto Cupla 日东接头 Nitto Cupla
       
    日东接头 Nitto Cupla
    Model
    Application
    Weight(g)
    Dimensions (mm)
    Lp
    C
    ¢Dp
    Hp
    A
    T
    700R-3P
    PT3/8"
    210
    54
    18.5
    39.5
    2hex.24×¢28
    14
    PT3/8"
    700R-4P
    PT1/2"
    418
    70
    22
    50
    2hex.27×¢35
    16
    PT1/2"
     
    日东接头 Nitto Cupla
    Model
    Application
    Weight(g)
    Dimensions (mm)
    Ls
    ¢Ds
    Hs
    A
    T
    700R-3S
    PT3/8"
    270
    73
    39.5
    2hex.22×¢25
    14
    PT3/8"
    700R-4S
    PT1/2"
    562
    91
    50
    2hex.27×¢32
    16
    PT1/2"

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