High pressure impregnation
For over 20 years Timber Preservation Technologies have designed built, tested and commissioned many innovative timber treatment plants that utilise cutting edge engineering technologies.
Our experience allows us to supply you with the technology to utilise the latest generation of water-based preservatives for wood preservation.
When to use High pressure treatment?
When timbers are going to be used outdoors high pressure treatment is required. This relates back to the Use Class system, and you can see the classes below which are relevant to high pressure treatment: –
Use Class 3a – Also referred to as Use Class 3 Coated. This is the first level for timber to be used outdoors and above ground e.g. window frames.
Use Class 3b – Also referred to as Use Class 3 Uncoated. These are external timbers that remain above the ground e.g. fence panels/rails.
Use Class 4 – This Use Class is used for timber where direct soil or water contact will occur. Examples include fence posts and decking structures that will be sunk into the ground.
High pressure treatment uses pressures of up to 14bar and a water based treatment which helps it to better withstand all the additional enemies which attack timber which is being used outdoors.
|Treatment Vessel||Ø1.2m – Ø3.6m|
|Treatment Vessel Length||6.0m – 30.0m (Single Piece)|
|Pressure||Full Vacuum to up to 15bar g|
|Layout||Storage Tank Below|
Storage Tank Above
Storage Tank to Side
Multiple Storage Tanks
|Storage Tanks||Horizontal Rectangular|
|Vacuum System||Single Pump |
|Fluid Transfer System||Vacuum Fill & Gravity Empty|
Vacuum Fill & Pump Empty
Vacuum Fill & Air Pressure Empty
Pump Fill & Gravity Empty
Pump Fill & Pump Empty
|Pack Clamping||Hydraulically Operated|
|Bund||Steel Bund attached to Storage Tank|
Fully Independent Steel Bund
|Timber Handling System||Single Elevated Rail track|
Single in Ground Rail track
Double Transfer Car Rail track
Lay by System – Manual, Semi Automated or Fully Automated
|Mixing System||To suit all preservative suppliers’ requirements|
|Control System||TPT OptiTreat|
From any preservative supplier as required
- Timber charge is sealed in the treatment vessel
- Vacuum applied causing timber cells to be evacuated of air
- Vessel is flooded while the vacuum is maintained
- Preservative is forced into the timber under hydraulic pressure
- Vessel is emptied
- Low pressure inside treatment vessel draws in surface solution when vented to atmosphere
- Vacuum applied to the timber again to evacuate left over preservative
- Left over preservative is recovered to the storage tank
- Timber charge removed from treatment vessel
All equipment can be supplied either Ex-Works or Fully Installed, whichever works best for you. We have access to a wide network of transport, crane and plant hire providers to allow us to achieve even the most complicated of installations.
We also have our own lifting equipment including the following: –
- Reachstacker capable of lifting 45T
- Wheeled Hydraulic Lifting Frame capable of lifting 80T
- 2no. 10T Fork Lift Trucks
Any of these can be transported to site if the job requires it.
For more information or to get a quote call us on +44 (0)16973 51027 or email firstname.lastname@example.org