HAAS® sealing cushions with bypass combine the quality and flexibility you need to be able to redirect the wastewater drain during cleaning and renovation work. The wastewater can be diverted in a targeted manner via the film hose and pumped out by a dirty water pump. In addition, the barrier cushions with the foil tube inserted can be easily positioned over an inspection opening. In this way, the operation of the sewage pipes in the household and when using the toilet can continue to be maintained. A quick-release coupling accelerates a secure connection to the compressed air supply. Whether for blocking or redirecting:
The flexible bypass sealing bag solutions from HAAS ® simplify installation and use – and contribute to greater efficiency and safety.
Sealing cushions with passage – proven and simply safe
These bypass sealing bags are used to shut off downpipes to divert feces. This ensures that no interruptions to the wastewater system in buildings can occur during work (e.g. cleaning or renovation).
PU 10-L-80
PU 12.5-L-110
PU 15-L-140
Executions
HAAS® sealing cushions with bypass are available for downpipes DN 100, DN 125 and DN 150.
Sealing cushion without bypass
Material
HAAS® sealing cushions with bypass are made from high-quality natural rubber. In the test pipe sealing cushion PU version there is a corrosion-resistant metal body under the natural rubber jacket; in the test pipe sealing cushion PU-F version there is a flexible hose. The bypass sealing bags are resistant to industrial water, wastewater and temperatures from – 30 °C to + 80 °C.
Areas of application
Our sealing cushions with a passage support you effectively in shutting off downpipes in order to redirect faeces during repairs and renovations, as well as in leak tests (water, air) of newly laid and renovated pipes in accordance with DIN EN 1610. They are used in these areas
| Type | PU 10-L-80 | PU 12.5-L-110 | PU 15-L-140 |
| Item no. | 1416501 | 1416601 | 1416701 |
| Name: | Bypass shut-off cushion DN 100 | Bypass shut-off cushion DN 125 | Bypass shut-off cushion DN 150 |
| Length in mm: | 85 | 110 | 140 |
| Diameter in mm: | 85 | 110 | 165 |
| Bypass in mm: | 60 | 90 | 115 |
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Would you like to find out more about our bypass sealing bags, shut-off bladders or shut-off bags?
Leak testing technology
The diameter of the bypass is 60 – 125 mm, depending on the size of the bypass sealing cushion
Depending on the size of the bladders, they can be connected to all sizes of Storz couplings from D to A, i.e. with a diameter of 25 mm to 110 mm.
Bypass sealing cushions are primarily placed in inspection openings. This means that domestic drainage operations are maintained during maintenance work on the sewage underground pipe.