GATHER DBG-SV

Flat-face tank coupling

Flachdichtende Tankkupplung - Serie DBG-SV

Shut-off design in both sides, dry-break and capable of connecting under residual pressure

The hose couplings of the DBG SV series have self-closing shut-off valves. When disconnecting, there are no liquid leakages from the hose and container, no air or dirt enters the line system when connecting. These dry-break hose couplings offer a high degree of safety during refuelling, filling and decanting, because despite frequent coupling, environmental damage or hazards to persons due to leaking liquids are excluded. The liquids do not come into contact with the ambient air. Coupling and uncoupling is very easy and smooth, even if the lines are under residual pressure.

Technical Data

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Series DBG-SV

Technical data

Materials	Stainless steel (1.4404, 1.4021) Hastelloy^® Titanium
Seals*	FKM, EPDM, FFKM, FVMQ, NBR, CR et al. (also FDA-compliant)
Temperature range	-55 up to +300°C (according to seal type)

^* other elastomers on request!

Technical Data of the DBG-SV series (Flat-face tank coupling)

Series	DBG-SV8	DBG-SV12	DBG-SV16	DBG-SV20
Nominal width	DN 25	DN 40	DN 50	DN 65
Allowable operating pressure [bar]¹⁾	65	40	25	16
Max loss [ml]²⁾	0,1	0,3	2,2	3,6

1) static, coupled at 20°C
2) max leakage by wetting the valves

Dimensions [mm]

Female thread G	1	1.1/2	2	2.1/2
A	107	135	145	152
B	115	115	119	140
C	81	103	104	133
D	56	75	74	100
E	172	187	197	232
F	143	143	142	142
coupled	142	187	195	228
SW 1/2	55 & Ø6 / 50	65 / 70	75 / 65	95 / 90

Function
During coupling, sockets and nipples are pushed into each other. The coupling is shut off externally. A good third of a turn locks the socket with the nipple and then opens the valves which release the media flow. The dead space-free design prevents air inclusions during connecting and drip losses during disconnecting.

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