The original Uniseal
For a liquid tight seal, UNISEAL ® is the world’s best and cheapest watertight bulkhead fitting for relative thin walls.
UNISEALS provide more versatility than a traditional bulkhead, handling irregularities and curvatures with ease.
The UNISEAL® offers longevity, easy installation and a reduction in labor and material costs.
They are made to withstand pressure and suction up to 4,5bar (65psi).
Manufactured with Alcryn by DuPont®, they are resistant to most chemical compounds as well as acids, oils, greases, gasoline, sewage, waste, heat and cold (-40°C – 100°C)
To achieve optimal results in straight or curved applications, the UNISEAL® is the only choice to meet your sealing needs.
Unlike some counterfeit products, this original UNISEAL guarantees a watertight application when correctly installed.
Purchase the Uniseal via the WEBSHOP
Installation
The installation is easy:
- Drill a hole in the wall (see table below for diameters!), make sure the edges are smooth and not sharp, then insert the UNISEAL®.
- Then insert the tube by coating it with a lubricant (silicone grease or simply soapy water) and pushing the tube through the seal.
The particular shape of the seal will allow its expansion at the passage of the tube, thus ensuring the required sealing even on slightly curved surfaces such as round tanks.
Use the table for metric uniseal sizes and drill diameters.
| Tube diameter (mm) | Tube diameter (inch) | Drill diameter (mm) | Drill diameter (inch) | Max. wall thickness |
| 6 | 3/16 | 8 | 0.3 | 9 |
| 8 | 1/4 | 13 | 0.5 | 9 |
| 10 | 5/16 | 12 | 0.5 | 9 |
| 16 | 3/8 | 25 | 1 | 9 |
| 20 | 1/2 | 31-32 | 1.25 | 9 |
| 25 | 3/4 | 31-32 | 1.25 | 9 |
| 32 | 1 | 44-45 | 1.75 | 9 |
| 40 | 1 1/4 | 51-53 | 2 | 9 |
| 50 | 1 1/2 | 63-65 | 2.5 | 9 |
| 63 | 2 | 75-77 | 3 | 9 |
| 75 | 2,75 | 100 | 9 | |
| 90 | 3 | 100 | 4 | 9 |
| 100 | 3,90 | 127 | 9 | |
| 110 | 4 | 127 | 5 | 9 |
| 125 | 6 | 178 | 7 | 9 |
| * items in bold text in stock as standard | ||||