Phosphoric acid wash system
In order to obtain an as clean as possible pipe surface, pipes may be additionally “cleaned” after blasting. In the phosphoric acid wash cleaning process a carefully premixed acid solution is sprayed on the pipe with the goal to remove possible contaminations such as salts (chlorides and sulphates), light oxidation, oil traces, surface dust and/or carbon residues.
Advantages:
- Enhanced adhesion of applied coating
- Efficient use of consumables
- Highly reliable process control
- Angled roof to prevent drops on pipe
- Fully adjustable cabin for optimal process settings
- Optimized design based on long history of successfully functioning acid wash units
How It Works:
The process typically consists of the acid application step, a certain dwell time interval which is required to let the acid solution do its work and finally a high pressure water rinsing step. The used water shall be free from contaminations avoiding for pollution of the pipe surface and hence shall be demineralized or obtained from a reversed osmosis water supply. The acid solution is prepared on a skid mounted equipment module with special process tanks for mix preparation and ready mix. These process tanks are fitted with level indicators, stirrers and the required electrics and instrumentation.
The Full Scope:
- Application cabin
- Acid solution preparation skid
- High pressure water pump
- Waste water treatment system
- Extended line speed
Optional:
- Reverse osmose unit
- Fluorescent lighting
- Window flush nozzles
- Extended cabin length
Product Range:
Pipe diameter range : 4½”– 144“
Cabin length : generally up to 3000 mm
Line speed : generally up to 10 m/s
Pipe pitch : 80 mm – 200 mm
Filterable Properties:
At Selmers, we specialize in advanced industrial machinery and automation for coating and handling pipes and tubes. With over 50 years of experience, we have grown into a trustworthy supplier of numerous automated solutions. Collaboration is key to creating real magic. Interested in optimizing performance and reducing risks?
