LEDEX
KF-LK & KF-XG Flexible Coupling Adapters - detailed view 1 showing explosion proof construction for C1D1, C1D2 applications
KF-LK & KF-XG Flexible Coupling Adapters - detailed view 2 showing explosion proof construction for C1D1, C1D2 applications
KF-LK & KF-XG Flexible Coupling Adapters - detailed view 3 showing explosion proof construction for C1D1, C1D2 applications
MaterialStainless steel 304 (1/2"-6"), brass (1/2"-2"), iron (2-1/2"-6")
TypesKF-LK straight, KF-XG 90° elbow
Nominal sizes1/2" - 6"
End configurationsRotating F/F, M/M, F/M and M/F
Compression strengthMax 6,000 psi (1/2", 3/4"); max 1,200 psi (1"-2")
ThreadNPT, M
RoHSCompliant
CertificatecULus file no. E490826

Classifications shown for this model

Class 1 Division 1Class 1 Division 2Class 2 Division 1Industrial

Catalogue numbers & dimensions

Sizes · Threads · Package
Nominal Conduit SizeM ThreadNPT ThreadLK pcs/boxXG pcs/box
1/2"M20x1.51/2"106
3/4"M25x1.53/4"106
1"M32x1.51"106
1-1/4"M40x1.51-1/4"52
1-1/2"M50x1.51-1/2"52
2"M63x1.52"52
2-1/2"M75x1.52-1/2"21
3"M90x23"21
4"M110x24"21
5"M140x25"11
6"M164x26"11
Weight per Box (kg)
SizeLK-FLK-MLK-F/MXG-FXG-MXG-F/M
1/2"2.93.73.23.03.02.8
3/4"3.84.64.34.24.03.9
1"5.37.66.45.86.15.4
1-1/4"3.54.63.92.62.72.4
1-1/2"4.15.74.93.23.33.0
2"5.88.16.54.64.94.3

Weights not published for 2-1/2"-6" or for the M/F configurations.

Part Number - KF -- XX X X X X
#FieldCodes
1CategoryKF - abbreviation of KAIFLEX
2TypeLK: straight · XG: 90° elbow
3Size1: 1/2" · 2: 3/4" · 3: 1" · 4: 1-1/4" · 5: 1-1/2" · 6: 2" · 7: 2-1/2" · 8: 3" · 9: 4" · 10: 5" · 11: 6"
4Adapter type, both endsF: rotating female to female · M: rotating male to male · F/M: rotating female to male · M/F: rotating male to female
5Thread1: M · 2: NPT
6Material1: Stainless steel 304 · 2: Brass · 3: Iron

Frequently Asked Questions

What engineers and distributors ask most often before specifying the KF-LK.

Explosion-proof lighting uses a certified enclosure or protection method to keep an ignition inside the equipment from reaching a surrounding explosive gas or vapour atmosphere. The term does not make a fixture suitable for every hazardous location. Under CEC Section 18, the exact product must match the documented Zone or Division, gas or dust group, surface-temperature limit, ambient range and wiring method.

Question about a classification, a photometric layout, or a specific part number?

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Send us the area classification, mounting height and target light level. We'll confirm the full part number and can prepare a free photometric study.

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