6HFR31 Hansen® by Danfoss | Quick Disconnect Coupling | HKFR Series BOP | 3/4" Female NPTF x 3/4" ISO 7241-1 Series B | Socket | NBR Seal | Steel

6HFR31 Hansen® by Danfoss | Quick Disconnect Coupling | HKFR Series BOP | 3/4" Female NPTF x 3/4" ISO 7241-1 Series B | Socket | NBR Seal | Steel

$103.79 - $103.79

$103.79

$103.79 - $103.79

$103.79

Hansen® by Danfoss
HKFR Series | ISO 7241-1 BOP

Fluid Transfer and Hydraulic Quick Disconnect Coupling

Danfoss Hansen HKFR Series is a quick disconnect hydraulic coupling for hazardous Blow Out Preventer (BOP) service in the Oil and Gas Industry.

Specifications for Variant SKU: 6HFR31 Danfoss
Brand:	Hansen
Series:	HKFR Series BOP
Shape (Orientation):	Straight
Ends Configuration:	3/4in Female NPTF, 3/4in ISO-B QD Interchange
Material(s):	Steel
Seal Material(s):	Buna-N/Nitrile Rubber

Product Features:	BOP designation and red color is marked on the Socket/Female and Plug/Male halves. Sleeve lock is standard. Utilizes HK Series dust caps and dust plugs.
Applications & Markets:	Oil and Gas
Materials:	Standard body material: 316 stainless steel, zinc trivalent plated steel. Standard seal material: Nitrile (NBR).
Specifications:	Meets or exceeds the ISO 7241-1 B standard. Lloyd's Register Certification
Lloyd's Register Certification:	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: 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

Series	Body Size	Max. Operating Pressure Connected		Min. Burst Pressure		Rated Flow		Fluid Loss
Series	Body Size	bar	psi	bar	psi			Fluid Loss
4HKFR	1/2"	482 bar	7,000 psi	1,931 bar	28,000 psi	28 lpm	7.5 gpm	3.5 cc. Max
6HKFR	3/4"	344 bar	5,000 psi	1,251 bar	18,150 psi	66 lpm	17.5 gpm	9.3 cc. Max
8HKFR	1"	344 bar	5,000 psi	1,379 bar	20,000 psi	95 lpm	25 gpm	16.9 cc. Max
ML8HKFR	1"	344 bar	5,000 psi	1,379 bar	20,000 psi	95 lpm	25 gpm	16.9 cc. Max


Socket/Female (Figure 1)						Plugs (Male) (Figure 2)
HKFR Series BOP
Part Number	Body Size	Type	Material	Female Thread	Figure	Dimensions
NBR Seal	Body Size	Type	Material	Female Thread	Figure	A	B	Across Flats	C	D	E	Hex
4HFR26	1/2"	Socket/Female	Steel	1/2-14 Fem. NPTF	1	2.96" (75.2mm)	1.86" (47.2mm)	1.13" (28.7mm)	-	-	-	-
4KFR26	1/2"	Plug/Male	Steel	1/2-14 Fem. NPTF	2	-	-	-	2.03" (51.6mm)	1.3" (33.0mm)	0.76" (19.3mm)	1.13" (28.7mm)

6HFR31	3/4"	Socket/Female	Steel	3/4-14 Fem. NPTF	1	3.48" (88.4mm)	2.22" (56.4mm)	1.31" (33.3mm)	-	-	-	-
6KFR31	3/4"	Plug/Male	Steel	3/4-14 Fem. NPTF	2	-	-	-	2.36" (59.9mm)	1.52" (38.6mm)	0.71" (18.0mm)	1.31" (33.3mm)

8HFR36	1 "	Socket/Female	Steel	1-1-1/2 Fem. NPTF	1	4.13" (104.9mm)	2.61" (66.3mm)	1.75" (44.5mm)	-	-	-	-
8KFR36	1"	Plug/Male	Steel	1-11-1/2 Fem. NPTF	2	-	-	-	2.85" (72.4mm)	1.88" (47.8mm)	0.97" (24.6mm)	1.63" (41.4mm)

ML8HFR36*	1"	Socket/Female	316 Stainless Steel	1-1-1/2 Fem. NPTF	1	4.13" (104.9mm)	2.61" (66.3mm)	1.75" (44.5mm)	-	-	-	-
ML8KFR36*	1"	Plug/Male	316 Stainless Steel	1-11-1/2 Fem. NPTF	2	-	-	-	2.85" (72.4mm)	1.88" (47.8mm)	0.97" (24.6mm)	1.63" (41.4mm)

Danfoss (Eaton - Aeroquip)

Danfoss is a global technology leader in power management solutions that make electrical, hydraulic and mechanical power operate more efficiently, reliably, safely and sustainably. Danfoss hydraulic pumps, motors, transmissions, valves, cylinders, controls, hose and fittings offer a unique combination of proven technology and innovative design that translates directly into reliable performance and enhanced uptime.

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