Original Hansen series HK

Original Hansen
double shut-off hydraulic coupling

Original Hansen Schnellkupplungen der Serie HK

Double shut-off design
(single shut-off or in both halves possible)

The quick disconnect couplings of the HK series are single shut-off, double shut-off or straight-through. The double shut-off version is to be earmarked for hazardous media such as acids, alkalis, hot water or steam. Single shut-off couplings can be equipped with a non-return valve in the socket or nipple, depending on the application.

During connecting the valves do not push against each other until the coupling is shut off to the outside. Conversely, they are only separated when the valves are closed. This type of quick disconnect coupling works splash-free.

Technical Data

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Original Hansen double shut-off hydraulic coupling

Series HK

Technical data

Series	nominal width	allowable operting pressure [bar]^*			max loss [ml]
		MS	ST	VA
HK 1	DN 4	200	275	345	0,5
HK 2	DN 6	185	255	255	0,9
HK 3	DN 10	150	255	255	2,1
HK 4	DN 12	155	345	290	3,5
HK 6	DN 20	140	275	240	9,4
HK 8	DN 25	100	275	170	17,0
HK 10	DN 32	80	120	120	48,0
HK 12	DN 40	100	150	150	91,0
HK 20	DN 60	50	100	100	210,0

Legend: MS = Brass, ST = Steel, VA = stainless steel

^*static, coupled at 20°C

General technical data

Materials	Stainless steel (1.4305, 1.4401) Zinc-plated steel Brass passivated Brass nickel-plated Hastelloy^® Titanium
Seals	NBR, FPM, EPDM, CR, FVMQ, PTFE, FFKM et al. (also FDA-compliant)

Function

Principle: First seal, then release the flow!

During connecting the valves of the socket and the nipple push against each other.

Before the valves release the flow, the interior is sealed against the environment. The robust design minimises air inclusion during connecting and residual leakage during disconnecting.

Dimensions of the HK series [mm]

Series	thread^*	A	B	C	coupled	SW 1/2
HK 1	1/8	49	25	32	60	15/15
HK 2	¼	58	30	39	72	19/19
HK 3	3/8	65	36	45	80	23/23
HK 4	½	75	48	51	94	29/29
HK 6	¾	89	56	89	106	34/34
HK 8	1	105	66	71	129	45/42
HK 10	1 ¼	115	70	108	174	61/61
HK 12	1 ¼	123	82	122	190	61/61
HK 12	1 ½	123	82	122	190	61/61
HK 20	2	141	105	140	216	96/96
	2 ½	156	105	155	246	96/96
	3	178	105	173	286	102/102