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.
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.