Push-in fittings CQ, for push-fit piping systems
Push-in fittings CQ, for push-fit piping systems
Key features
General information
Suitable for polyamide pipes PQ-PA
and aluminium pipes PQ-AL
O.D. 12, 15, 18, 22 and 28 mm
è Internet: pq
Suitable for polyamide tubing PAN
and polyurethane tubing PUN
O.D. 12 mm
è Internet: pan, pun
2
The pipes/tubes are held externally.
This ensures that there is no
reduction of nominal size.
Simple, fast installation:
– cut to length
– insert
– and you're done!
The pipes/tubes can be assembled
and dismantled without tools.
Quick release connection.
Can be re-used a number of times.
è Internet: www.festo.com/catalogue/...
The releasing tool CQO for size
12 … 22 is provided for
applications requiring frequent
dismantling or where the push-in
fittings are difficult to access.
The retaining ring CQSR, which is
available as an accessory, prevents
inadvertent disconnection of the
tubing or pipe. Size 28 features an
integrated retaining device.
Screw-in thread cylindrical to
ISO 228/1, sealed with chamfered
O-ring, size 28 with PVC flat seal.
No additional thread sealing
compound required.
Plug connector materials approved
for use by the FDA (Food and Drug
Administration) as per
manufacturer's declaration.
Exception: Push-in fitting
CQ-1-28-H, distributor
CQD-12/15/18/22 and fluid
separator CQA-28
Minimal weight compared to steel
pipe and die-cast fittings.
Subject to change – 2014/12
Push-in fittings CQ, for push-fit piping systems
Technical data
General technical data
Design
Mounting position
Type of seal on threaded plug
Push-pull principle
Any (fluid separator CQA-28: vertical)
Sealing ring
Operating and environmental conditions
Temperature-dependent
[bar]
operating pressure
Operating pressure complete [bar]
temperature range
Operating medium
Note on operating/pilot medium
Ambient temperature
[°C]
Temperature of medium
[°C]
Corrosion resistance class CRC1)
Food industry approval
Certification
1)
2)
Size 12/15/18/22
Size 28
–0.95 … +15
–0.95 … +10
–0.95 … +7
–0.95 … +7
Compressed air according to ISO 8573-1:2010 [7:–:–]
Lubricated operation possible (in which case lubricated operation will always be required)
–25 … +75
–25 … +75
2
As per manufacturer's declaration2) (exception: push-in fitting CQ-1-28H, distributor CQD-12/15/18/22 and fluid
separator CQA-28)
Germanischer Lloyd
Corrosion resistance class CRC 2 to Festo standard FN 940070
Moderate corrosion stress. Indoor applications in which condensation may occur. External visible parts with primarily decorative requirements for the surface and which are in direct contact with the ambient atmo
sphere typical for industrial applications.
Additional information www.festo.com/sp è User documentation.
Materials
Sectional view
1
CQ
1 Housing
2 Releasing ring
3 Tube retaining claw
4 O-ring
5 Connector thread seal
Note on materials
2
3
4
2014/12 – Subject to change
POM (push-in fitting CQ-1-28H/separator CQA-28: brass)
POM
High-alloy stainless steel
NBR
NBR (push-in fitting CQ-1-28H: PVC)
RoHS-compliant
Contains PWIS (paint-wetting impairment substances)
5
è Internet: www.festo.com/catalogue/...
3
Push-in fittings CQ, for push-fit piping systems
Product range overview
Design
Straight
design
Version
Type
Connection D1
G thread
Push-in connector
CQ
è Page/
Internet
12
12, 15, 18
22
–
6
–
12, 15
12, 15, 18, 22
22
28
–
6
12
15
18
22
28
–
–
–
7
12
15
15
18
22
–
–
15
18
22
22
28
7
Push-in sleeve j
–
–
Gy
G½
G¾
G1
–
–
Push-in fitting – Male thread
CQ
Gy
G½
G¾
Push-in fitting with sleeve
CQ-…H
Push-in sleeve j
Tube/piping O.D.
Push-in connector with sleeve
CQ-…H
–
Connection D2
Tube/piping O.D.
Push-in sleeve
CQH-…-QS
–
–
15
18
22
–
12
16
16
8
CQC-…H
–
–
12
15
18
22
28
–
–
8
Push-in L-connector
CQL
–
12
15
18
22
28
–
–
–
9
Push-in T-connector
CQT
–
12
15
18
22
28
18
22
–
–
–
9
–
15
15
–
9
Blanking plug
L-shape
T-shape
CQT
Reducing
4
–
è Internet: www.festo.com/catalogue/...
Subject to change – 2014/12
Push-in fittings CQ, for push-fit piping systems
Product range overview
Design
Straight
design
Version
Type
Connection D1
G thread
Tube/piping O.D.
Push-in sleeve j
Connection D2
Tube/piping O.D.
Push-in sleeve j
è Page/
Internet
Distributor
CQD
–
Water separator
CQA
–
10
22
28
–
–
–
10
Retaining ring
CQSR
–
11
CQO
–
12
Releasing tool
2014/12 – Subject to change
è Internet: www.festo.com/catalogue/...
5
Push-in fittings CQ, for push-fit piping systems
Technical data
Push-in fitting CQ
with sealing ring
Dimensions and ordering data
Male thread Nominal Pipe/tubing
connection
size
O.D.
D5
L1
D1
[mm]
D2
±0.5
±0.5
Gy
G½
8.65
8.65
12
12.7
17
12
12
15
18
22
26.4
29.8
29.7
34
40
30.6
34
38
54.8
60.7
G¾
L2
9.3
12.5
12.5
12.5
13.4
ß
24
27
27
–
–
Nominal
tightening
torque
[Nm]
Weight/piece Part No.
2.5 ±10%
2.5 ±10%
2.5 ±10%
2.5 ±10%
3 ±20%
8
12
14
24
36
Type
PU*
CQ-y-12
CQ-½-12
CQ-½-15
CQ-½-18
CQ-¾-22
1
1
1
1
1
Type
PU*
CQ-y-12H
CQ-y-15H
CQ-½-12H
CQ-½-15H
CQ-½-18H
CQ-½-22H
CQ-¾-22H
CQ-1-28H
1
1
1
1
1
1
1
1
[g]
177682
177683
177684
177685
177686
* Packaging unit quantity
Push-in fitting CQ-…H
with push-in sleeve and sealing ring
Dimensions and ordering data
Male thread Nominal Push-in
connection
size
sleeve 
L1
D1
[mm]
D2
±0.5
Gy
8.65
9.4
8.65
10
12.7
12.15
17
23
12
15
12
15
18
22
22
28
39.8
54.4
43.3
57.9
62.9
64.9
69
80
G½
G¾
G1
L2
ß
Nominal
tightening
torque
[Nm]
Weight/piece Part No.
9.3
11.3
12.5
14.5
14.5
14.5
17
15
24
22
27
27
27
27
37
36
2.5 ±10%
2.5 ±10%
2.5 ±10%
2.5 ±10%
2.5 ±10%
2.5 ±10%
3 ±20%
62.5 ±20%
4
10
8
14
18
18
28
200
[g]
177705
177707
177706
177708
177709
177710
177711
194589
* Packaging unit quantity
6
è Internet: www.festo.com/catalogue/...
Subject to change – 2014/12
Push-in fittings CQ, for push-fit piping systems
Technical data
Push-in connector CQ
Dimensions and ordering data
Pipe/tubing Nominal size
O.D.
D1
[mm]
±0.5
12
15
18
22
28
23
26.8
31.1
35.5
49.5
D5

8.65
12
16
19.2
24.9
D5

L1
L2
Weight/piece Part No.
±1
[g]
54.4 ±0.5
57.8 ±0.5
64.1 ±0.5
69.1 ±0.5
91 ±1
25
27.5
30.5
33
44
16
18
26
36
90
L1
L2
Weight/piece Part No.
±1
[g]
60.2 ±0.5
70.5 ±0.5
71.5 ±0.5
70.7 ±0.5
81.8 ±1
25
27.5
27.5
30.5
33
12
16
16
22
34
177695
177696
177697
177698
194586
Type
PU*
CQ-12
CQ-15
CQ-18
CQ-22
CQ-28
1
1
1
1
1
Type
PU*
CQ-15H-12
CQ-18H-15
CQ-22H-15
CQ-22H-18
CQ-28H-22
1
1
1
1
1
* Packaging unit quantity
Push-in connector CQ-…H
with push-in sleeve
Dimensions and ordering data
Pipe/tubing Nominal Push-in
O.D.
size
sleeve 
D1
[mm]
D2
±0.5
12
15
15
18
22
23.1
26.8
26.8
31.1
35.5
9.15
12.15
12.15
17.3
19.2
15
18
22
22
28
177701
177702
177703
177704
196231
* Packaging unit quantity
2014/12 – Subject to change
è Internet: www.festo.com/catalogue/...
7
Push-in fittings CQ, for push-fit piping systems
Technical data
Push-in sleeve CQH-…-QS
for connecting CQ to QS
Dimensions and ordering data
Push-in
Nominal Push-in
sleeve 
size
sleeve 
D1
[mm]
D2
15
18
22
8
11
11
L1
Weight/piece Part No.
Type
PU*
CQH-15-QS-12
CQH-18-QS-16
CQH-22-QS-16
1
1
1
Type
PU*
CQC-12H
CQC-15H
CQC-18H
CQC-22H
CQC-28H
1
1
1
1
1
[g]
12
16
16
66.5
71.5
80
4
8
10
177721
177722
177723
* Packaging unit quantity
Blanking plug CQC-…H
Dimensions and ordering data
Push-in sleeve 
D5

L1
L2
21.6
25
30
32
40
38.8 ±0.5
45 ±0.3
41.5 ±0.3
45 ±0.3
56
4.7
5
4
4.7
4
D1
12 ±0.15
15 ±0.15
18 ±0.15
22 ±0.15
28 ±0.15
Weight/piece Part No.
[g]
4
6
8
10
22
177712
177713
177714
177715
194590
* Packaging unit quantity
8
è Internet: www.festo.com/catalogue/...
Subject to change – 2014/12
Push-in fittings CQ, for push-fit piping systems
Technical data
Push-in L-connector CQL
Dimensions and ordering data
Pipe/tubing Nominal size
O.D.
D1
[mm]
12
15
18
22
28
8.65
12
16
19.2
24.9
D5

H1
H2
Weight/piece Part No.
±1
[g]
23.1
26.8
31.1
35.5
49.2
32.2 ±0.5
37.2 ±0.5
44.1 ±0.5
48.3 ±0.5
61.4 ±1
25
27.5
30.5
33
44
16
20
32
46
106
177691
177692
177693
177694
194587
Type
PU*
CQL-12
CQL-15
CQL-18
CQL-22
CQL-28
1
1
1
1
1
Type
PU*
* Packaging unit quantity
Push-in T-connector CQT
Outlets: 2
Supply lines: 1
Reducing
Dimensions and ordering data
Pipe/tubing Nominal Pipe/tubing
O.D.
size
O.D.
D1
[mm]
D2
D5

H1
H2
L1
L2
Weight/piece Part No.
[g]
±1
12
15
18
22
28
8.65
12
16
19.2
24.9
–
–
–
–
–
23
26.8
31.1
35.5
49.2
32.2 ±0.5
37.2 ±0.5
44.1 ±0.5
48.3 ±0.5
61.4 ±1
25
27.5
30.5
33
44
64.4 ±0.5
74.4 ±0.5
88.2 ±0.5
96.6 ±0.5
121 ±1
–
–
–
–
–
26
30
46
66
152
177687
177688
177689
177690
194588
CQT-12
CQT-15
CQT-18
CQT-22
CQT-28
1
1
1
1
1
Reducing
18
22
12
12.15
15
15
31.1
35.6
37.9 ±0.5
41.6 ±0.5
27.5
27.5
84.5 ±0.5
89.6 ±0.5
30.5
33
42
56
177699
177700
CQT-18-15
CQT-22-15
1
1
* Packaging unit quantity
2014/12 – Subject to change
è Internet: www.festo.com/catalogue/...
9
Push-in fittings CQ, for push-fit piping systems
Technical data
Distributor CQD
with 3 blanking plugs
Outlets: 4
Supply lines: 1
Dimensions and ordering data
Female
Nominal size
thread
connection
D1
[mm]
Nominal
tightening
torque
[Nm]
Weight/piece Part No.
G½
2.5 ±10%
181
18.6
Type
PU*
CQD-12/15/18/22
1
Type
PU*
CQA-22
1
[g]
177717
* Packaging unit quantity
Fluid separator CQA
The fluid separator has been designed
for air flow rates up to 300 l/min.
The condensate remains in the ring
line and does not enter the branch
line vertically downwards.
Dimensions and ordering data
Pipe/tubing Nominal size
O.D.
D1
[mm]
22
12
H1
H2
L1
Weight/piece Part No.
[g]
71.8
48.3
97.8
76
177716
* Packaging unit quantity
10
è Internet: www.festo.com/catalogue/...
Subject to change – 2014/12
Push-in fittings CQ, for push-fit piping systems
Technical data
Fluid separator CQA
A water separator can be created by
inserting a fluid separator CQA-28
into a push-in connector CQT. The fluid
separator consists of a brass insert
with an O-ring. The short section of
the brass insert is pushed into the
polyamide or aluminium pipe. This
combination is then joined to the
push-in connector CQT.
1
Fluid separator
1 Push-in connector CQT
2
2 Pipe PQ
Dimensions and ordering data
Push-in
Nominal size
sleeve 
D1
[mm]
22
20
D5
H1
Weight/piece Part No.
Type
PU*
196984
CQA-28
1
[g]
28
24.8
18
* Packaging unit quantity
Retaining ring CQSR
The retaining ring prevents
inadvertent disconnection of the
tubing or pipe.
Dimensions and ordering data
Tubing O.D.
D1
Weight/piece
[g]
Part No.
Type
PU*
12
15
18
22
1
0.5
0.5
0.4
175727
175728
175729
175730
CQSR-12
CQSR-15
CQSR-18
CQSR-22
10
10
10
10
* Packaging unit quantity
2014/12 – Subject to change
è Internet: www.festo.com/catalogue/...
11
Push-in fittings CQ, for push-fit piping systems
Technical data
Releasing tool CQO
Dimensions and ordering data
Tubing O.D.
D1
Weight/piece
[g]
Part No.
Type
PU*
15
22
2
4
175725
175726
CQO-15
CQO-22
1
1
* Packaging unit quantity
12
è Internet: www.festo.com/catalogue/...
Subject to change – 2014/12