Product · Leak Sealing
Bundled Sealing Bag
A flat sealing bag secured with straps over the leak site, ideal for emergency repair of ruptured pipes with a diameter of 150 to 500 mm.
Strapped-On Sealing for Medium-Diameter Pipe Ruptures
The bundled sealing bag provides a fast, reliable emergency seal for ruptured pipelines between 150 mm and 500 mm in diameter, with a flat design that fits confined spaces.
- Highly effective — one inflation provides a long-lasting seal
- Rapid deployment — quick-connect couplings plus straps for fast connection and inflation
- Flat design — only 12–15 mm thick, ideal for confined spaces
- Chemical resistant — passes gasoline, acid and alkali tests
Performance
Performance Parameters
| No. | Item | Test Condition | Indicator |
|---|---|---|---|
| 1 | High & low temperature resistance | -25°C, 60°C × 2h, 180° fold | Crack-free |
| 2 | Gasoline resistance | 120° gasoline, 1 h | No cracks, non-sticky |
| 3 | Acid resistance | 80% H₂SO₄, 60% HNO₃, 30% HCl, 1 h | Impermeable, non-stick, non-brittle |
| 4 | Alkali resistance | 6.1 mol/L NaOH, 1 h | Impermeable, non-stick, non-brittle |
Scope & Specs
Application & Specifications
Suitable for leaks caused by pipe ruptures with diameters ranging from 150 mm to 500 mm.
| Leak-Sealing Width (mm) | Rated Pressure (MPa) |
|---|---|
| 150 | 0.15 |
Operation
How to Use the Leak-Sealing Bag
Align
Align the sealing surface of the bag with the leak site.
Secure
Secure the bag firmly using the straps.
Connect
Connect the foot pump, connecting hose and bag.
Inflate
Inflate to rated working pressure — never exceed it.
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Need a bundled seal for a medium pipe?
Tell us the pipe diameter and medium — quote sent within 24 hours.




