Datasheet
A
M
L
Ø D
Applicable tubing
H
Connection thread
M
L
2
A
L
1
Connection thread
Ø D
Applicable tubing
H
Ø D2
L2
A
L1
M
Ø D1
H
Connection thread
Applicable tubing
Rib
X
Y
X
Y
X
Y
Release button dimensions
Release button dimensions
Release button dimensions
Male Connector: KQ2H (Gasket seal)
Hexagon Socket Head Male Connector: KQ2S (Gasket seal)
∗1 Reference dimensions after 
installation of Uni thread
∗1 Reference dimensions after 
installation of Uni thread
Male Elbow: KQ2L (Gasket seal)
∗1 Reference dimensions after 
installation of Uni thread
첸: A (Brass), N (Brass + Electroless nickel plating)
첸: A (Brass), N (Brass + Electroless nickel plating)
첸: A (Brass), N (Brass + Electroless nickel plating)
Dimensions
Applicable 
tubing O.D. 
[mm]
Connection 
thread
Uni
Model
H
(Width 
across 
fl ats)
Ø D1
Release button
dimensions
Ø D2
L1 L2 A
∗
1
M
Effective 
area [mm
2
]
Min.
port
size
Weight
[g]
With 
a rib
XY
Nylon
Urethane
Ø 4
1/8
KQ2L04-U01첸1
10
8.2
7.7 10 10
14.8 16.4 15.7 13.3
4.6 3.3 3 4.8
앬
1/4
KQ2L04-U02첸1
14
8.2
7.7 10 10
14.8 19.2 16.9 13.3
4.6 3.3 3 11.5
앬
Ø 
6
1/8
KQ2L06-U01첸1
10
10.4
9.7 12 10
15.5 17.5 17.9 13.3
11.4 9 4.5 5.3 —
1/4
KQ2L06-U02첸1
14
10.4
9.7 12 10
15.5 20.3 19.1 13.3
11.4 9 4.5 12 —
3/8
KQ2L06-U03첸1
17
10.4
9.7 12 10
15.5 21.4 20.2 13.3
11.4 9 4.5 21.4 —
Applicable 
tubing O.D. 
[mm]
Connection 
thread
Uni
Model
H
(Width 
across 
fl ats)
Ø D
Release button
dimensions
L1 L2 A
∗
1
M
Effective area 
[mm
2
]
Min.
port
size
Weight
[g]
XY
Nylon
Urethane
Ø 4
1/8
KQ2S04-U01첸1
3 10 7.7 10 20.6 19.6 15.8 13.3 4.1 3.6 3.1 8
Ø 
6
1/8
KQ2S06-U01첸1
4 12 9.7 12 19.8 18.8 15 13.3 10 9.9 4.1 8.2
1/4
KQ2S06-U02첸1
4 14 9.7 12 19.8 18.8 13.4 13.3 10.7 10 4.1 12.3
Applicable 
tubing O.D. 
[mm]
Connection 
thread
Uni
Model
H
(Width 
across 
fl ats)
Ø D
Release button
dimensions
LA
∗
1
M
Effective area 
[mm
2
]
Min.
port
size
Weight
[g]
XY
Nylon
Urethane
Ø 4
1/8
KQ2H04-U01첸1
10 7.7 7.7 10 15.9 11.1 13.3 4.8 3.4 3 6.6
1/4
KQ2H04-U02첸1
14 7.7 7.7 10 15.3 8.9 13.3 4.8 3.4 3 12.7
Ø 6
1/8
KQ2H06-U01첸1
12 9.7 9.7 12 16.7 11.9 13.3 13.1 10.4 4.5 6.2
1/4
KQ2H06-U02첸1
14 9.7 9.7 12 17 10.6 13.3 13.1 10.4 4.5 12.8
3/8
KQ2H06-U03첸1
17 9.7 9.7 12 14.9 8.5 13.3 13.1 10.4 4.5 18.1
90
Metric Size Uni One-touch Fittings
KQ2 Series
Applicable Tubing: Metric Size, Connection Thread: Rc, G, NPT, NPTF
Oval Type
Metric Size M, R, RcInch Size UNF, NPTInch Size M, R, Rc
Metric Size GMetric Size R, RcInch Size NPTInch Size RMetric Size UniInch Size Uni
Sealant/Gasket SealFace SealGasket Seal
Oval
Type
Metric Size M, R, RcInch Size UNF, NPTInch Size M, R, Rc
Metric Size GMetric Size R, RcInch Size NPTInch Size RMetric Size UniInch Size Uni
Sealant/Gasket SealFace SealGasket Seal
Oval
Type










