Tube-Hose Quick-Disconnect Coupling

Double shutoff, dry-break and connectable under residual pressure

Hose couplings of type DBG-SV are fitted with automa-tically closing shut-off valves. Upon disconnection no fluid will escape from hose or tank, and when the con-nection is made neither air nor dirt will enter the line system. These dry-break hose couplings offer a high degree of safety when fueling, filling in or refilling fluid since despite repeated coupling operations damage to the environment or hazard to persons due to spilled fluid is ruled out. The fluid will not come into contact with ambient air. Connecting and disconnecting is a very simple and easy task even when the lines are under residual pressure.

Dimensions series DBG-SV


Technical Data Series DBG-SV
Series DBG-SV8 DBG-SV12 DBG-SV16 DBG-SV20
Nominal diameter DN 25 DN 40 DN 50 DN 65
Admissible operating pressure [bar]1) 65 40 25 16
Max. loss through wetting of valves [ml] 0.1 0.3 2.2 3.6
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
Width A/F 1/2 55 & Ø6 / 50 65 / 70 75 / 65 95 / 90

* static, coupled at 20°C

Materials
Stainless steel (1.4404 or 1.4571)

Seals/Gaskets
FPM, EPDM, FFKM, FVMQ, NBR, CR etc. (also FDA compliant)

Temperature Range
–80°C to +260°C (depending on seal type)

 

Function
During coupling socket and plug are pushed into each other. The coupling is sealed off towards the outside. By a good one-third turn socket and plug interlock and open the valves so that the fluid passage is cleared. Because of the coupling design without dead spots air cannot ingress when the coupling is connected,
neither can spillage occur during separation.

Downloads
  • PDF Files
    • Operating manual
      Couplings

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