A new skin inside the tank you already have.
Protective internal linings for steel and reinforced concrete tanks. Warranty of 2 to 10 years by mutual agreement; insulation between liners available.
HDPE lining system
An impermeable geomembrane barrier. Chlorine added to kill bacteria attacks concrete and steel; the liner keeps the water off both.
| Thickness range | 0.3 – 3.0 mm |
|---|---|
| Strength at break | 71 / 85 N/mm |
| Strength at yield | 38 / 45 N/mm |
| Elongation at break | 700% |
| Dimensional stability | ± 2% |
Strength values are per direction. The full per-thickness property table is available on request.
- Application
- Steel tanks, R.C. tanks, sewage tanks, aquaculture and landscape ponds, irrigation channels
- Expected life span
- More than 20 years
- Installation
- Qualified installers only
- Inert geomembrane, approx. 97.5% virgin polyethylene and 2.5% carbon black; no fillers or extenders. Non-toxic.
- UV stabilised and resistant to rodents, microorganisms, oily wastes, acids and hydrocarbons.
- Flexible and easy to weld to tank shapes; high puncture and crack resistance, rust free.
- Chlorine neutralises concrete surfaces and corrodes reinforcement; an impermeable liner stops that cycle of repairs.
Stainless steel lining, SS 304 / 316L
Hygienic, food-grade steel lining for reinforced concrete tanks, with no chemical reaction with the concrete walls.
- Application
- Internal lining for reinforced concrete (R.C.) tanks
- Expected life span
- More than 50 years
- Installation
- Water Tank Tech qualified installers only
- Hygienic, food-grade steel for lifetime protection against corrosion with minimum maintenance.
- A protective layer against corrosion caused by the oxidation of chlorine in the water of R.C. tanks.
- SS 304: 0.08% carbon and 8% nickel, resistant to moderately aggressive organic and reducing acids.
- SS 316L: molybdenum for higher corrosion resistance; low carbon avoids carbide precipitation during welding.
- Excellent fabricability; no chemical reaction with concrete walls. Insulation between liners available.
Installation, in order.
How a liner goes in, from surface inspection to the signed completion certificate.
Preliminaries
Inspect the area. The surface must be firm and unyielding, with no sharp changes in grade that could damage the liner.
Fixing
Liners attach to steel or concrete walls with bolted stainless steel or HDPE batten strips.
Wedge welding
Overlaps are heated and pressed while molten into a double-track weld with an air channel for pressure testing.
Extrusion welding
For pipe penetrations, patches and non-linear seams, using molten polyethylene of the same resin.
Seam testing
Every field seam is tested over its full length by spark or vacuum as seaming progresses.
Drawings and support
Detailed drawings, technical and estimating support for the most economical configuration.
Completion
A final joint inspection, then a signed completion certificate and the agreed warranty.