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ML6KP31BS Hansen® By Danfoss | Quick Disconnect Coupling | HK1-8 Series | 3/4″ Female BSPP X 3/4″ ISO 7241-1 B | Plug | NBR Seal | 316 Stainless Steel
Original price was: $204.03.$98.99Current price is: $98.99.
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| Product Features: |
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| Applications & Markets: |
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| ISO Standard: |
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| Materials: |
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| European Pressure Equipment Directive: |
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Group 1 = Hazardous media / Group 2 = Other media
| Series | Body Size | ISO Size | Nominal Flow Diameter | Max. Operating Pressure | Rated Flow* | Air Inclusion | Fluid Loss | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Non Hazardous Liquids & Gases (Group 2) | Hazardous Liquids & Gases (Group 1) | ||||||||||
| in. | mm | mm | bar | psi | bar | psi | lpm | gpm | cc.max. | cc.max. | |
| 1HK | 1/8″ | 5mm | 4.4mm | 344 bar | 5,000 psi | 344 bar | 5,000 psi | 3 lpm | 0.8 gpm | 0.6 cc.max. | 0.5 cc.max. |
| 2HK | 1/4″ | 6.3mm | 5.9mm | 255 bar | 3,700 psi | 255 bar | 3,700 psi | 12 lpm | 3 gpm | 1.2 cc.max. | 0.9 cc.max. |
| 3HK | 3/8″ | 10mm | 7.8mm | 255 bar | 3,700 psi | 255 bar | 3,700 psi | 23 lpm | 6 gpm | 2.9 cc.max. | 2.1 cc.max. |
| 4HK | 1/2″ | 12.5mm | 10mm | 293 bar | 4,250 psi | 293 bar | 4,250 psi | 45 lpm | 12 gpm | 3.6 cc.max. | 3.5 cc.max. |
| 6HK | 3/4″ | 20mm | 17mm | 242 bar | 3,500 psi | 242 bar | 3,500 psi | 100 lpm | 26 gpm | 11.5 cc.max. | 9.3 cc.max. |
| 8HK | 1″ | 25mm | 19.6mm | 207 bar | 3,000 psi | 207 bar | 3,000 psi | 189 lpm | 50 gpm | 18.0 cc.max. | 16.9 cc.max. |
| 10HK | 1-1/4″** | – | 26.7mm | 118 bar | 1,700 psi | 37 bar | 537 psi | 288 lpm | 76 gpm | 48.0 cc.max. | 48.0 cc.max. |
| 12HK | 1-1/2″ | 40mm | 35.1mm | 152bar | 2,200 psi | 29 bar | 421 psi | 375 lpm | 99 gpm | 91.3 cc.max. | 91.3 cc.max. |
| 20HK | 2-1/2″ | 50mm | 46mm | 104bar | 1,500 psi | 21 bar | 305 psi | 757 lpm | 200 gpm | 209.9 cc.max. | 209.9 cc.max. |
For questions related to vacuum please contact Danfoss.
** No ISO Standard available for the 10HK
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Socket/Female (Figure 1) |
Plugs (Male) (Figure 2) |
||||||||||||
| HK1-8 Series | |||||||||||||
| Part Number 303 Stainless Steel |
Part Number 316 Stainless Steel |
Body Size |
ISO Size |
Type | Female Thread |
Figure | Dimensions | ||||||
| NBR Seal | NBR Seal | A | B | Across Flats |
C | D | E | Hex | |||||
| LL1H11 | ML1H11 | 1/8″ | 5mm | Socket/Female | 1/8-27 Fem. NPTF | 1 | 1.91″ (48.5mm) |
0.98″ (24.9mm) |
0.56″ (14.2mm) |
– | – | – | – |
| LL1K11 | ML1K11 | 1/8″ | 5mm | Plug/Male | 1/8-27 Fem. NPTF | 2 | – | – | – | 1.26″ (32.0mm) |
0.65″ (16.5mm) |
0.44″ (11.2mm) |
0.56″ (14.2mm) |
| LL1H4 | – | 1/8″ | 5mm | Socket/Female | 7/16-20 Fem. SAE ORB | 1 | 2.06″ (52.3mm) |
0.98″ (24.9mm) |
0.69″ (17.5mm) |
– | – | – | – |
| LL1K4 | – | 1/8″ | 5mm | Plug/Male | 7/16-20 Fem. SAE ORB | 2 | – | – | – | 1.41″ (35.8mm) |
0.79″ (20.1mm) |
0.59″ (15.0mm) |
0.69″ (17.5mm) |
| LL2H16 | ML2H16 | 1/4″ | 6.3mm | Socket/Female | 1/4-18 Fem. NPTF | 1 | 2.26″ (57.4mm) |
1.14″ (29.0mm) |
0.75″ (19.1mm) |
– | – | – | – |
| LL2K16 | ML2K16 | 1/4″ | 6.3mm | Plug/Male | 1/4-18 Fem. NPTF | 2 | – | – | – | 1.52″ (38.6mm) |
0.87″ (22.1mm) |
0.56″ (14.2mm) |
0.75″ (19.1mm) |
| LL2H16BS | ML2H16BS | 1/4″ | 6.30mm | Socket/Female | 1/4-19 Fem. BSPP | 1 | 2.31″ (58.7mm) |
1.14″ (29.0mm) |
0.75″ (19.1mm) |
– | – | – | – |
| LL2K16BS | ML2K16BS | 1/4″ | 6.30mm | Plug/Male | 1/4-19 Fem. BSPP | 2 | – | – | – | 1.52″ (38.6mm) |
0.87″ (22.1mm) |
0.56″ (14.2mm) |
0.75″ (19.1mm) |
| LL2H6 | – | 1/4″ | 6.3mm | Socket/Female | 9/16-18 Fem. SAE ORB | 1 | 2.40″ (61.0mm) |
1.14″ (29.0mm) |
0.88″ (22.4mm) |
– | – | – | – |
| LL2K6 | – | 1/4″ | 6.3mm | Plug/Male | 9/16-18 Fem. SAE ORB | 2 | – | – | – | 1.66″ (42.2mm) |
1.01″ (25.7mm) |
0.70″ (17.8mm) |
0.88″ (22.4mm) |
| LL3H21 | ML3H21 | 3/8″ | 10mm | Socket/Female | 3/8-18 Fem. NPTF | 1 | 2.56″ (65.0mm) |
1.42″ (36.1mm) |
0.88″ (22.4mm) |
– | – | – | – |
| LL3K21 | ML3K21 | 3/8″ | 10mm | Plug/Male | 3/8-18 Fem. NPTF | 2 | – | – | – | 1.76″ (44.7mm) |
1.01″ (25.7mm) |
0.61″ (15.5mm) |
0.88″ (22.4mm) |
| LL3H21BS | ML3H21BS | 3/8″ | 10mm | Socket/Female | 3/8-19 Fem. BSPP | 1 | 2.56″ (65.0mm) |
1.42″ (36.1mm) |
0.88″ (22.4mm) |
– | – | – | – |
| LL3K21BS | ML3K21BS | 3/8″ | 10mm | Plug/Male | 3/8-19 Fem. BSPP | 2 | – | – | – | 1.76″ (44.7mm) |
1.01″ (25.7mm) |
0.61″ (15.5mm) |
0.88″ (22.4mm) |
| LL3H8 | – | 3/8″ | 10mm | Socket/Female | 3/4-16 Fem. SAE ORB | 1 | 2.74″ (69.6mm) |
1.42″ (36.1mm) |
1.00″ (25.4mm) |
– | – | – | – |
| LL3K8 | – | 3/8″ | 10mm | Plug/Male | 3/4-16 Fem. SAE ORB | 2 | – | – | – | 1.94″ (49.3mm) |
1.15″ (29.2mm) |
0.79″ (20.1mm) |
1.00″ (25.4mm) |
| LL4HP26 | ML4HP26 | 1/2″ | 12.5mm | Socket/Female | 1/2-14 Fem. NPTF | 1 | 2.96″ (75.2mm) |
1.86″ (47.2mm) |
1.13″ (28.7mm) |
– | – | – | – |
| LL4KP26 | ML4KP26 | 1/2″ | 12.5mm | Plug/Male | 1/2-14 Fem. NPTF | 2 | – | – | – | 2.03″ (51.6mm) |
1.30″ (33.0mm) |
0.76″ (19.3mm) |
1.13″ (28.7mm) |
| LL4HP26BS | ML4HP26BS | 1/2″ | 12.5mm | Socket/Female | 1/2-14 Fem. BSPP | 1 | 2.96″ (75.2mm) |
1.86″ (47.2mm) |
1.13″ (28.7mm) |
– | – | – | – |
| LL4KP26BS | ML4KP26BS | 1/2″ | 12.5mm | Plug/Male | 1/2-14 Fem. BSPP | 2 | – | – | – | 2.03″ (51.6mm) |
1.30″ (33.0mm) |
0.76″ (19.3mm) |
1.13″ (28.7mm) |
| LL4HP10 | – | 1/2″ | 12.5mm | Socket/Female | 7/8-14 Fem. SAE ORB | 1 | 3.05″ (77.5mm) |
1.86″ (47.2mm) |
1.25″ (31.8mm) |
– | – | – | – |
| LL4KP10 | – | 1/2″ | 12.5mm | Plug/Male | 7/8-14 Fem. SAE ORB | 2 | – | – | – | 2.11″ (53.6mm) |
1.37″ (34.8mm) |
0.84″ (21.3mm) |
1.19″ (30.2mm) |
| LL6HP31 | ML6HP31 | 3/4″ | 20mm | Socket/Female | 3/1-14 Fem. NPTF | 1 | 3.48″ (88.4mm) |
2.22″ (56.4mm) |
1.31″ (33.3mm) |
– | – | – | – |
| LL6KP31 | ML6KP31 | 3/4″ | 20mm | Plug/Male | 3/4-14 Fem. NPTF | 2 | – | – | – | 2.36″ (59.9mm) |
1.52″ (38.6mm) |
0.71″ (18.0mm) |
1.31″ (33.3mm) |
| LL6HP31BS | ML6HP31BS | 3/4″ | 20mm | Socket/Female | 3/4-14 Fem. BSPP | 1 | 3.48″ (88.4mm) |
2.22″ (56.4mm) |
1.31″ (33.3mm) |
– | – | – | – |
| LL6KP31BS | ML6KP31BS | 3/4″ | 20mm | Plug/Male | 3/4-14 Fem. BSPP | 2 | – | – | – | 2.36″ (59.9mm) |
1.52″ (38.6mm) |
0.71″ (18.0mm) |
1.31″ (33.3mm) |
| LL6HP12 | – | 3/4″ | 20mm | Socket/Female | 1-1/16-12 Fem. SAE ORB | 1 | 3.67″ (93.2mm) |
2.22″ (56.4mm) |
1.38″ (35.1mm) |
– | – | – | – |
| LL6KP12 | – | 3/4″ | 20mm | Plug/Male | 1-1/16-12 Fem. SAE ORB | 2 | – | – | – | 2.54″ (64.5mm) |
1.59″ (40.4mm) |
0.89″ (22.6mm) |
1.38″ (35.1mm) |
| LL8HP36 | ML8HP36 | 1″ | 25mm | Socket/Female | 1-11-1/2 Fem. NPTF | 1 | 4.13″ (104.9mm) |
2.61″ (66.3mm) |
1.75″ (44.5mm) |
– | – | – | – |
| LL8KP36 | ML8KP36 | 1″ | 25mm | Plug/Male | 1-11-1/2 Fem. NPTF | 2 | – | – | – | 2.85″ (72.4mm) |
1.88″ (47.8mm) |
0.97″ (24.6mm) |
1.63″ (41.4mm) |
| LL8HP36BS | ML8HP36BS | 1″ | 25mm | Socket/Female | 1-11 Fem. BSPP | 1 | 4.13″ (104.9mm) |
2.61″ (66.3mm) |
1.75″ (44.5mm) |
– | – | – | – |
| LL8KP36BS | ML8KP36BS | 1″ | 25mm | Plug/Male | 1-11 Fem. BSPP | 2 | – | – | – | 2.85″ (72.4mm) |
1.88″ (47.8mm) |
0.97″ (24.6mm) |
1.63″ (41.4mm) |
| LL8HP16 | – | 1″ | 25mm | Socket/Female | 1-5/16-12 Fem. SAE ORB | 1 | 4.13″ (104.9mm) |
2.61″ (66.3mm) |
1.88″ (47.8mm) |
– | – | – | – |
| LL8KP16 | – | 1″ | 25mm | Plug/Male | 1-5/16-12 Fem. SAE ORB | 2 | – | – | – | 2.85″ (72.4mm) |
2.17″ (55.1mm) |
0.97″ (24.6mm) |
1.88″ (47.8mm) |
| HK10/12/20 Series | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |
 |
|||||||||||
|
Socket/Female (Figure 3) |
Plugs (Male) (Figure 4) |
|||||||||||
| Part Number 303 Stainless Steel |
Body Size | ISO Size |
Type | Female Thread |
Figure | Dimensions | ||||||
| NBR Seal | A | B | Hex | C | D | E | Hex | |||||
| LL10H41* | 1-1/4″ | – | Socket/Female | 1-1/4-11-1/2 Fem. NPTF | 1 | 4.51″ (114.6mm) |
2.73″ (69.3mm) |
2.38″ (60.5mm) |
– | – | – | – |
| LL10K41* | 1-1/4″ | – | Plug/Male | 1-1/4-11-1/2 Fem. NPTF | 2 | – | – | – | 4.25″ (108.0mm) |
2.74″ (69.6mm) |
2.33″ (59.2mm) |
2.38″ (60.5mm) |
| LL10H41BS* | 1-1/4″ | – | Socket/Female | 1-1/4-11 Fem. BSPP | 1 | 4.51″ (114.6mm) |
2.73″ (69.3mm) |
2.38″ (60.5mm) |
– | – | – | – |
| LL12H41 | 1-1/2″ | 40mm | Socket/Female | 1-1/4-11-1/2 Fem. NPTF | 1 | 4.82″ (122.4mm) |
3.23″ (82.0mm) |
2.38″ (60.5mm) |
– | – | – | – |
| LL12K41 | 1-1/2″ | 40mm | Plug/Male | 1-1/4-11-1/2 Fem. NPTF | 2 | – | – | – | 4.76″ (120.9mm) |
2.74″ (69.6mm) |
2.67″ (67.8mm) |
2.38″ (60.5mm) |
| LL12H41BS | 1-1/2″ | 40mm | Socket/Female | 1-1/4-11 Fem. BSPP | 1 | 4.82″ (122.4mm) |
3.23″ (82.0mm) |
2.38″ (60.5mm) |
– | – | – | – |
| LL12K41BS | 1-1/4″ | 40mm | Plug/Male | 1-1/4-11 Fem. BSPP | 2 | – | – | – | 4.76″ (120.9mm) |
2.74″ (69.6mm) |
2.67″ (67.8mm) |
2.38″ (60.5mm) |
| LL12H46 | 1-1/2″ | 40mm | Socket/Female | 1-1/2-11-1/2 Fem. NPTF | 1 | 4.82″ (122.4mm) |
3.23″ (82.0mm) |
2.38″ (60.5mm) |
– | – | – | – |
| LL12K46 | 1-1/2″ | 40mm | Plug/Male | 1-1/2-11-1/2 Fem. NPTF | 2 | – | – | – | 4.76″ (120.9mm) |
2.74″ (69.6mm) |
2.67″ (67.8mm) |
2.38″ (60.5mm) |
| LL12H46BS | 1-1/2″ | 40mm | Socket/Female | 1-1/2-11 Fem. BSPP | 1 | 4.82″ (122.4mm) |
3.23″ (82.0mm) |
2.38″ (60.5mm) |
– | – | – | – |
| LL12K46BS | 1-1/2″ | 40mm | Plug/Male | 1-1/2-11 Fem. BSPP | 2 | – | – | – | 4.76″ (120.9mm) |
2.74″ (69.6mm) |
2.67″ (67.8mm) |
2.38″ (60.5mm) |
| LL20H51 | 2-1/2″ | 50mm | Socket/Female | 2-11-1/2 Fem. NPTF | 1 | 5.55″ (141.0mm) |
4.11″ (104.4mm) |
3.75″ (95.3mm) |
– | – | – | – |
| LL20K51 | 2-1/2″ | 50mm | Plug/Male | 2-11-1/2 Fem. NPTF | 2 | – | – | – | 5.49″ (139.4mm) |
4.33″ (110.0mm) |
2.97″ (75.4mm) |
3.75″ (95.3mm) |
| LL20H61 | 2-1/2″ | 50mm | Socket/Female | 3-8 Fem. NPTF | 1 | 7.00″ (177.8mm) |
4.11″ (104.4mm) |
4.00″ (101.6mm) |
– | – | – | – |
| LL20K61 | 2-1/2″ | 50mm | Plug/Male | 3-8 Fem. NPTF | 2 | – | – | – | 6.94″ (176.3mm) |
4.62″ (117.3mm) |
4.42″ (112.3mm) |
4.00″ (101.6mm) |
* ISO 7241-1 Series B does not include 1-1/4 inch body size couplings; therefore, Series 10HK is not covered by this standard
A=Overall Length, B=Maximum Diameter
C=Overall Length, D=Maximum Diameter, E=Exposed Length when Connected
To obtain connected length of coupling, add dimensions A (Fig. 1) and E (Fig. 2) together.
To obtain connected length of coupling, add dimensions A (Fig. 3) and E (Fig. 4) together.
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