Quick Disconnect Couplings - Flipbook - Seite 43
Fluid transfer & Hydraulic application
Global region
Danfoss Hansen HKFR Series is a quick disconnect
hydraulic coupling for hazardous Blow Out Preventer
(BOP) service in the Oil and Gas Industry. The HKFR Series
meets or exceeds the ISO 7241-1 B standard.
HKFR Series
ISO 7241-1 BOP
Product Features
• BOP designation and red color is
marked on the Socket/Female and
Plug/Male halves
• Lloyd’s Register Certification
• Sleeve lock is standard
• Utilizes HK Series dust caps and dust
plugs
• Standard body material: 316 stainless
steel, zinc trivalent plated steel
• Meets or exceeds ISO 7241-1 Series B
standard
Physical Characteristics
• Standard seal material: Nitrile (NBR)
Series
Body Size
Max. Operating Pressure
Connected
Min. Burst Pressure
Rated Flow
4HKFR
6HKFR
8HKFR
ML8HKFR
(in)
1/2
3/4
1
1
(bar)
482
344
344
344
(bar)
1,931
1,251
1,379
1,379
(lpm)
28
66
95
95
(psi)
7,000
5,000
5,000
5,000
(psi)
28,000
18,150
20,000
20,000
Fluid Loss
(gpm)
7.5
17.5
25
25
cc. max
3.5
9.3
16.9
16.9
Lloyd's Register Certification
Applications & Markets
• Oil and gas
All of the above items carry a Llyod's Registry Certificate for fire conditions stated in API 16D and
EUB Directive 36. These parts meet the requirements that state couplings shall be capable of
maintaining pressure when exposed to a 700˚C (1,300˚F) temperature for a five-minute period.
Testing for this certification was conducted at the following pressures in the connected condition:
Figure 1
4HFR26/4KFR26:
3,000 PSI/206 BAR
6HFR31/6KFR31:
3,000 PSI/206 BAR
8HFR36/8KFR36:
4,000 PSI/275 BAR
ML8HFR36/ML8KFR36:
4,000 PSI/275 BAR
Figure 2
Female End Connections
Part
Number
4HFR26
6HFR31
8HFR36
ML8HFR36*
Coupling
Type
Body
Size
Socket/Female
Socket/Female
Socket/Female
Socket/Female
1/2
3/4
1
1
Thread
1/2-14 NPTF
3/4-14 NPTF
1-1 1/2 NPTF
1-1 1/2 NPTF
Fig.
Dimensions
A
B
Across Flats
A
B
Across Flats
1
1
1
1
(in)
2.96
3.48
4.13
4.13
(in)
1.13
1.31
1.75
1.75
(mm)
75.2
88.4
104.9
104.9
(mm)
47.2
56.4
66.3
66.3
(mm)
28.7
33.3
44.5
44.5
(in)
1.86
2.22
2.61
2.61
*Stainless Steel
Plugs/Males
Part
Number
Coupling
Type
Body
Size
Thread
Fig.
Dimensions
C
D
E
Hex
C
D
E
Hex
4KFR26
6KFR31
8KFR36
ML8KFR36*
Plug/Male
Plug/Male
Plug/Male
Plug/Male
1/2
3/4
1
1
1/2-14 NPTF
3/4-14 NPTF
1-11 1/2 NPTF
1-11 1/2 NPTF
2
2
2
2
(in)
2.03
2.36
2.85
2.85
(in)
0.76
0.71
0.97
0.97
(in)
1.13
1.31
1.63
1.63
(mm)
51.6
59.9
72.4
72.4
(mm)
33.0
38.6
47.8
47.8
(mm)
19.3
18.0
24.6
24.6
(mm)
28.7
33.3
41.4
41.4
(in)
1.3
1.52
1.88
1.88
*Stainless Steel
Danfoss Quick Disconnect Couplings Master Catalog
AF435258198969en-000102
43
