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

Model : KF--GJH-M Series

IECEx Explosion Proof Flexible Coupling, Flameproof Type, Two Male Fitting, KF--GJH-M 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--GJH7M1811 KF--GJH8aM1811 KF--GJH8bM1811 KF--GJH9M1811
    NPT KF--GJH7M1821 KF--GJH8aM1821 KF--GJH8bM1821 KF--GJH9M1821
    21" M KF--GJH7M2111 KF--GJH8aM2111 KF--GJH8bM2111 KF--GJH9M2111
    NPT KF--GJH7M2121 KF--GJH8aM2121 KF--GJH8bM2121 KF--GJH9M2121
    24" M KF--GJH7M2411 KF--GJH8aM2411 KF--GJH8bM2411 KF--GJH9M2411
    NPT KF--GJH7M2421 KF--GJH8aM2421 KF--GJH8bM2421 KF--GJH9M2421
    27" M KF--GJH7M2711 KF--GJH8aM2711 KF--GJH8bM2711 KF--GJH9M2711
    NPT KF--GJH7M2721 KF--GJH8aM2721 KF--GJH8bM2721 KF--GJH9M2721
    30" M KF--GJH7M3011 KF--GJH8aM3011 KF--GJH8bM3011 KF--GJH9M3011
    NPT KF--GJH7M3021 KF--GJH8aM3021 KF--GJH8bM3021 KF--GJH9M3021
    33" M KF--GJH7M3311 KF--GJH8aM3311 KF--GJH8bM3311 KF--GJH9M3311
    NPT KF--GJH7M3321 KF--GJH8aM3321 KF--GJH8bM3321 KF--GJH9M3321
    36" M KF--GJH7M3611 KF--GJH8aM3611 KF--GJH8bM3611 KF--GJH9M3611
    NPT KF--GJH7M3621 KF--GJH8aM3621 KF--GJH8bM3621 KF--GJH9M3621


  • Structure Profile