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Valves
2
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Quick Connectors
Pressure-Temperature Ratings
Spillage and Air Inclusion
• Spillage is the volume of system fluid that escapes while a quick connector is uncoupled.
• Air inclusion is the volume of air trapped that comes in while a quick connector is coupled.
DV
: Stem has a valve
SV
: Stem has no valve
DQ
Stem and
Body
SS316
FKMO-rings
Brass
NBR O-rings
DQA
DQB
DQC
DQA
DQB
DQC
psi (bar) @ °F (°C)
Coupled
3000 (206)
@ 70 (21)
1500 (103)
@ 70 (21)
750 (51.6)
@ 70 (21)
2000 (137)
@ 70 (21)
1000 (68.9)
@ 70 (21)
500 (34.4)
@ 70 (21)
250 (17.2) @ 400 (204)
250 (17.2) @ 250 (121)
Uncoupled
250 (17.2) @ 70 (21)
When coupling
and uncoupling
250 (17.2) @ 70 (21)
DQ Series
Spillage
Air Inclusion
DQ A
0.3
0.3
DQ B
1.0
1.0
DQ C
3.0
3.0
L
h
Series
End Connection
Basic Ordering Number
Cv
L mm (in.)
h
Hex.
in.
SV
DV
SV DV Full
Flow
SV
DV
DQA
1/8 in. DK-Lok
DQSA-D-2T-
DQVSA-D-2T-
0.08 0.08 0.08 58.9 (2.32)
70.4 (2.77)
5/8
1/4 in. DK-Lok
DQSA-D-4T-
DQVSA-D-4T-
0.3
0.2
0.4
59.9 (2.36)
61.5 (2.42)
5/8
6 mm DK-Lok
DQSA-D-6M-
DQVSA-D-6M-
0.3
0.2
0.4
59.9 (2.36)
61.5 (2.42)
5/8
1/8 in. Male NPT
DQSA-M-2N-
DQVSA-M-2N-
0.3
0.2
0.4
52.6 (2.07)
54.1 (2.13)
5/8
1/4 in. Male NPT
DQSA-M-4N-
DQVSA-M-4N-
0.3
0.2
0.4
56.4 (2.22)
57.9 (2.28)
5/8
1/8 in. Female NPT DQSA-F-2N-
DQVSA-F-2N-
0.3
0.2
0.4
51.1 (2.01)
52.6 (2.07)
5/8
1/4 in. Female NPT DQSA-F-4N-
DQVSA-F-4N-
0.3
0.2
0.4
57.4 (2.26)
58.9 (2.32)
3/4
DQB
3/8 in. DK-Lok
DQSB-D-6T-
DQVSB-D-6T-
1.0
0.5
1.5
64.0 (2.52)
67.1 (2.64)
3/4
10 mm DK-Lok
DQSB-D-10M-
DQVSB-D-10M-
1.0
0.5
1.5
67.3 (2.65)
70.4 (2.77)
3/4
1/4 in. Male NPT
DQSB-M-4N-
DQVSB-M-4N-
0.9
0.5
1.5
58.9 (2.32)
61.9 (2.44)
3/4
3/8 in. Male NPT
DQSB-M-6N-
DQVSB-M-6N-
0.8
0.5
1.6
59.7 (2.35)
62.7 (2.47)
3/4
1/4 in. Female NPT DQSB-F-4N-
DQVSB-F-4N-
0.9
0.5
1.5
59.7 (2.35)
62.7 (2.47)
3/4
3/8 in. Female NPT DQSB-F-6N-
DQVSB-F-6N-
0.8
0.5
1.6
59.7 (2.35)
62.7 (2.47)
7/8
DQC
1/2 in. DK-Lok
DQSC-D-8T-
DQVSC-D-8T-
2.4
1.5
3.3
75.2 (2.96)
80.3 (3.16)
15/16
12 mm DK-Lok
DQSC-D-12M-
DQVSC-D-12M-
2.4
1.5
3.3
75.2 (2.96)
60.3 (3.16)
15/16
1/2 in. Male NPT
DQSC-M-8N-
DQVSC-M-8N-
2.0
1.3
3.1
72.1 (2.84)
77.2 (3.04)
15/16
1/2 in. Female NPT DQSC-F-8N-
DQVSC-F-8N-
2.0
1.3
3.1
71.6 (2.82)
76.7 (3.02)
1 1/16
Ordering Information and Dimensions Stems
unit : cm3