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Air Products Company is a leading distributor, serving this industry for the last 72 years, specializing in the sales and service of the Danfoss Hansen quick disconnect couplings, Graco pumps, sprayers, industrial fluid handling, and Fastest Inc line of leak detection equipment and fittings. 

Inner Rack Solutions Danfoss’ direct-to-chip cooling solutions extend into the racks through efficient routing of flexible, kink-free hoses, and leak free, helium-tested couplings.

Danfoss’ UQD is designed for fluid transfer and electronics cooling applications, available in 4 different sizes and 2 color options. It complies with OCP (Open Compute Project) and exceeds requirements of specified performance characteristics. Danfoss UQD offers color identification (red and blue) and guarantees 100% helium-leak testing.

Max operating pressure Min burst pressure
Size Body Nominal Flow Diameter Connected Socket Plug Connected Socket Plug Rated Flow Cv Value Air Inclusion Fluid Loss
(in) (mm) (bar) (psi) (bar) (psi) (bar) (psi) (bar) (psi) (bar) (psi) (bar) (psi) (lpm (gpm - cc max. cc max.
UQD02 1/8 2.8 20 290 20 290 20 290 60 870 60 870 60 870 2.1 0.6 0.33 0.004 0.007
UQD04 1/4 5.5 16 232 16 232 16 232 48 696 48 696 48 696 6.4 1.7 1.37 0.0024 0.01
UQD06 3/8 6.3 6.9 100 6.9 100 6.9 100 20.7 300 20.7 300 20.7 300 11.4 3.0 2.37 0.027 0.022
UQD08 1/2 8.9 6.9 100 6.9 100 6.9 100 20.7 300 20.7 300 20.7 300 17.8 4.7 5.32 0.029 0.03

UQD Series

Force to Connect Data

Solutions to your liquid cooling challenges

Danfoss Hansen UQD is designed for thermal management applications, available in 4 sizes and has 2 color options. It complies with OCP (Open Compute Project) and exceeds requirements of specified performance characteristics. Danfoss UQD offers color identification (red and blue) and guarantees 100% helium-leak testing.

Flow Data

Details Dimensions
UQD Part Number Hose Stem End Fig A B C D HEX
(mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in)

UQD02
 2UQS25HABL*
1/4
1
46.2
1.82
23
0.91
15.5
0.61
19
0.75
14
0.55
2UQS25HARD*

UQD04		 4UQS37HABL*
3/8
1
60.7
2.39
28.7
1.13
20
0.79
22
0.87
18
0.71
4UQS37HARD*

UQD06		 6UQS50HABL*
1/2
1
61.1
2.41
31.7
1.25
24
0.94
25.8
1.02
22
0.87
6UQS50HARD*

UQD08		 8UQS62HABL
5/8
1
68.4
2.69
35
1.38
30
1.18
39
1.54
27
1.06
8UQS62HARD
Details Dimensions
UQD Part Number Threaded End Fig E F G H J Hex
BSP ORB (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in)




UQD02		 2UQP43ORMBL*
-
7/16-20
2
6.65
0.26
16.17
0.64
8.7
0.34
9.1
0.36
29.3
1.15
14
0.55
2UQS25HARD*
ML2UQP12MBSBL
1/8
-
3
6.65
0.26
17.32
0.68
8.7
0.34
8
0.31
30.4
1.20
15
0.59
ML2UQP12MBSRD




UQD04		 4UQP56ORMBL*
-
9/16-18
2
11.07
0.44
25.40
1.00
9.80
0.39
9.9
0.39
37.9
1.49
17
0.67
4UQP56ORMRD*
ML4UQP37MBSBL
3/8
-
3
11.07
0.44
25.40
1.00
9.80
0.39
11.2
0.44
37.9
1.49
22
0.87
ML4UQP37MBSRD




UQD06		 6UQP75ORMBL*
-
3/4-16
2
14.3
0.56
25.40
1.00
10
0.39
11.1
0.44
41.6
1.64
22
0.87
6UQP75ORMRD*
ML6UQP37MBSBL
3/8
-
3
14.3
0.56
25.40
1.00
10
0.39
11.2
0.44
41.6
1.64
22
0.87
ML6UQP37MBSRD




UQD08		 8UQP87ORMBL
-
7/8-14
2
17.48
0.69
31.18
1.23
12
0.47
12.7
0.50
47.6
1.87
27
1.06
8UQP87ORMRD
8UQP50MBSBL
1/2
-
6
17.48
0.69
34.64
1.36
12
0.47
14.5
0.57
47.6
1.87
30
1.18
8UQP50MBSRD

Seal Elastomer Data

Seal Elastomer P/N Code Operating Temperature Range
C° F°
EPDM - -40°C +150°C -40°F + 302°F

Danfoss Hansen UQD is designed for thermal management applications, available in 4 sizes and has 2 color options. It complies with OCP (Open Compute Project) and exceeds requirements of specified performance characteristics. Danfoss UQD offers color identification (red and blue) and guarantees 100% helium-leak testing.

• Designed per OCP (Open Compute Project) UQD specification

• Push-to-connect design

• High flow and no spillage

• Double shut off - flat face valves

• Exceeds OCP flow ratings at least by 25% resulting in reduction in overall energy consumption 

Product Features

​• Liquid cooling application

• Data center application​​

Best in class force to connect

• Standard material: 303, 304 stainless steel provides broad fluid compatibility

• Standard seal material: EPDM

• Color anodized aluminum sleeves

• Color coded (red/blue) sleeves on socket and O-rings on plug

Note 1: To obtain connected length of coupling, add dimensions A (Fig. 1) and G (Fig. 2) together.

Note 2: For color options, RD suffix corresponds to RED and BL suffix to BLUE *For EMEA, China and APAC region UQD02, UQD04 and UQD06 need to be ordered with Prefix “ML” (eg. ML2UQP43ORMBL).

Applications & Markets

Note 1: To obtain connected length of coupling, add dimensions A (Fig. 1) and G (Fig. 2) together.

Note 2: For color options, RD suffix corresponds to RED and BL suffix to BLUE *For EMEA, China and APAC region UQD02, UQD04 and UQD06 need to be ordered with Prefix “ML” (eg. ML2UQP43ORMBL)

Performance Parameters
Size Force to Connect Recommended Torque
N lb ORB size N-m BSP Size N-m
UQD02 48 10.79 7/16-20 11-12 1/8" 8-9
UQD04 50 11.24 9/16-18 18-20 3/8" 18-20
UQD06 73 16.41 3/4-16 52-57 3/8" 18-20
UQD08 87 19.56 7/8-14 58-64 1/2" 34-37

Danfoss Hansen Universal Quick Disconnet (UQD) Series

Thermal Management Application

Wide range of terminal end options: ORB, BSPP on plug and push on hose on socket. Additional configurations available upon request

• Operating temperature -40°C to +150°C

• Typical working pressure: 6.9 Bar, up to 20 bar for smaller sizes

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