Our crews remove the old FRP nozzle and prepare the existing entry port for the new nozzle. If there has been no previous nozzle or a nozzle of a different size is being replaced, a new tank body port is created, sealing the internal area from the structural laminated body of the tank. This preventive measure helps to prevent weeping of stored product into and between the fiberglass layers of the tank.
The new nozzle, which has been pre-fabricated and installed as an integrated unit or as a permeation assembly and separation flange, is laminated into the tank to make it integral with the tank's shell and its interior corrosion lining. Both the nozzle materials and the materials used to install the nozzle assembly are specific for use with the specified product to be stored and anticipated temperature of that product. This insures an extended nozzle service life.
Once the new nozzle assembly is installed, the tank shell exterior is made ready to be coated. Depending on the tank placement, exterior coatings may include aliphatic compounds for UV protection.
ALIGNING A NEW FLANGE TO EXISTING PIPING
Many times a replacement nozzle must be installed to work with existing piping. Our technicians can position the new nozzle into alignment with that piping.
This picture shows a tank at a water treatment plant that has containment failure and is in need of a tank repair. One of the most aggressive chemicals handled in Fiberglass Reinforced Plastic (FRP) vessels is Sodium Hypochlorite. Choosing the optimum resin, cure method, surfacing veil, and laminate system details are essential in extending a repaired FRP tank's service life.