IECEx Explosion Proof Flexible Coupling, Flameproof Type, Two Female Fitting (2-1/2"~4")

Model : KF--GJH-F Series

IECEx Explosion Proof Flexible Coupling, Flameproof Type, Two Female Fitting, KF--GJH-F Series is certified with explosion proof standard, ATEX / IECEx. Whole assembly is made by stainless steel with compact and sealing structure providing strong and high-safety protection for electrical equipment used in hazardous environment or the places existing potential risk of explosion. Two end connectors can be switched between male and female thread type depending on installation requirement.

Flameproof type explosion proof flexible coupling is highly flexible to resist bending and explosion pressure meanwhile good to absorb vibration. Suitable to protect the electrical circuit in short distance or at narrow space and the location existing long term vibration. Maintaining safety of facilities in high risk environment and reduce unexpected loss.

Flameproof type explosion proof flexible coupling is especially applied for the environment containing explosive gas, dust or flyings, for example, refinery, offshore oil platform, gas plant, petrochemical plant, chemical plant, grain mill, gas station and etc.


  • Structure/Material:Insulating Liner + Stainless Steel Inner Core + Stainless Steel Braid
  • Conduit Size:2-1/2"~4"
  • Conduit Length (L):Certified max. length is 36”
  • Compression Strength:Max. 512 psi (2-1/2"~4")
  • Thread:NPT, M
  • RoHS:Yes
  • Certificate:cULus (E490826), IECEx (IECExUL 20.0075U), ATEX (DEMKO 20 ATEX 2393U Rev. 0), TS (TD09002U)
  • [Remark] Brass construction is another option. This series is under development and will come soon.

  • IEC 60079
    Size:2-1/2″ ~ 4″
    Ex db ⅡC Gb
    Ex tb ⅢC Db

    ATEX
    Size:2-1/2″ ~ 4″
    Ⅱ 2G Ex db ⅡC Gb
    Ⅱ 2D Ex tb ⅢC Db

  • Ordering Information

  • Conduit Length
    (L)
    Thread Conduit Size (inch) | Min. Radius of Bend (mm) | Part Number
    2-1/2" 3a" 3b" 4"
    406mm 458mm 550mm 762mm
    18" M KF--GJH7F1811 KF--GJH8aF1811 KF--GJH8bF1811 KF--GJH9F1811
    NPT KF--GJH7F1821 KF--GJH8aF1821 KF--GJH8bF1821 KF--GJH9F1821
    21" M KF--GJH7F2111 KF--GJH8aF2111 KF--GJH8bF2111 KF--GJH9F2111
    NPT KF--GJH7F2121 KF--GJH8aF2121 KF--GJH8bF2121 KF--GJH9F2121
    24" M KF--GJH7F2411 KF--GJH8aF2411 KF--GJH8bF2411 KF--GJH9F2411
    NPT KF--GJH7F2421 KF--GJH8aF2421 KF--GJH8bF2421 KF--GJH9F2421
    27" M KF--GJH7F2711 KF--GJH8aF2711 KF--GJH8bF2711 KF--GJH9F2711
    NPT KF--GJH7F2721 KF--GJH8aF2721 KF--GJH8bF2721 KF--GJH9F2721
    30" M KF--GJH7F3011 KF--GJH8aF3011 KF--GJH8bF3011 KF--GJH9F3011
    NPT KF--GJH7F3021 KF--GJH8aF3021 KF--GJH8bF3021 KF--GJH9F3021
    33" M KF--GJH7F3311 KF--GJH8aF3311 KF--GJH8bF3311 KF--GJH9F3311
    NPT KF--GJH7F3321 KF--GJH8aF3321 KF--GJH8bF3321 KF--GJH9F3321
    36" M KF--GJH7F3611 KF--GJH8aF3611 KF--GJH8bF3611 KF--GJH9F3611
    NPT KF--GJH7F3621 KF--GJH8aF3621 KF--GJH8bF3621 KF--GJH9F3621


  • Structure Profile