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DG Safety Caps
screw cap GL 45 with one, two or three ports
High-quality and flexible connection system, specifically designed for handling aggressive, gas-generating media. Materials used: PP, PBT and PTFE. All parts coming into contact with media are from PTFE. Three different hose diameters (1.6 mm; 2.3 mm; 3.2 mm) can be connected. Pressure equalisation is possible through use of membrane filter. Outgassing of media is reduced by use of a one-way valve that decreases media loss and protects the user from vapours. A free moving PTFE core prevents rotation of the hoses when screwing onto the DURAN® bottle. Unused ports can be provided with a blind cap. Optionally available with stopcock to prevent running dry of the hoses or air intakes during bottle changeover. DG safety caps are also available for bottles with standard ground joint.
Typical application: safe transfer of aggressive media within a closed and (evaporation is reduced).
| Cat. No. | Description | DIN thread GL |
Pack Quantity |
|---|---|---|---|
| 11 684 01 * | DG Safety Cap I (1 port) | 45 | 1 |
| 11 684 02 * | DG Safety Cap II (2 ports) | 45 | 1 |
| 11 684 13 * | DG Safety Cap III (3 ports) | 45 | 1 |
| 11 684 14 * | DG Safety Cap I (1 port) with stopcock |
45 | 1 |
| 11 684 15 * | DG Safety Cap II (2 ports) with stopcocks |
45 | 1 |
| 11 684 16 * | DG Safety Cap III (3 ports) with stopcocks |
45 | 1 |
| 11 684 17 ** | DG Safety Cap for NS29/32 | 1 |
* Complete with GL 45 screw cap, connection screws, conical nipple (ID 3.2 mm, PTFE), ventilation valve and membrane filter.
** Complete with screw cap for NS 29/32, connection screws, conical nipple (ID 3.2 mm, PTFE), ventilation valve and membrane filter.
DG Safety Waste Caps
additional connection option for activated carbon filter and leak hose
The activated carbon filter prevents the escaping of hazardous gases and thus increases safety in the laboratory. Materials used: PP, PBT and PTFE. Optional special connection for installations with a leakage system. A free moving PTFE core prevents rotation of the hoses when screwing onto the DURAN® bottle. Unused ports can be provided with a blind cap.
Typical application: safe storage and collection of liquid laboratory waste.
| Cat. No. | Description | DIN thread GL |
Pack Quantity |
|---|---|---|---|
| 11 684 18 * | DG Safety Waste Cap GL 45 | 45 | 1 |
| 11 684 20 ** | DG Safety Waste Cap GL 45 for leak hose | 45 | 1 |
* Complete with GL 45 screw cap, connection screws and conical nipple (ID 3.2 mm, PTFE).
** Complete with GL 45 screw cap, connection screws, conical nipple (ID 3.2 mm, PTFE) and connection for leak hose.

Paulina Baszak
Junior Product Manager Labware
Phone: +49 (0)6131 – 1445 4412
Fax: +49 (0)6131 – 1445 4016
info.duran@duran-group.com






