The Alfa Laval GJ product line offers a wide range of tank cleaning machines for industrial applications, such as paint, steel, pulp & paper, chemicals, and oil & gas. The range spans from being able to clean small storage/process tanks to the big industrial fermenters and storage tanks of sizes more than 5678m3 (1.5 million gallons). The line also includes a special unit to clean underground storage tanks through one way opening.
The range of Alfa Laval GJ Series:
Alfa Laval GJ 4, Alfa Laval GJ 8, Alfa Laval GJ 10, Alfa Laval PF
Ever wonder how to validate your rotary jet heads’ cleaning process?
The Alfa Laval GJ 10 is the only automated tank cleaning machine capable of getting all residual fuel, dirt, and sludge out of underground storage tanks (UST). Designed to fit through standard UST inlets, the new lightweight unit is fluid driven and requires no external power supply to clean any size storage tank. Its powerful 360° rotary jets blast away contaminants and breaks up dirt and sludge that can be conveniently vacuumed away.
The GJ 10 is the only machine small enough to fit into USTs with enough power to clean all of the interior. It easily puts the contaminant-laden sludge into solution that allows for complete liquid extraction and thorough tank cleaning. Using a GJ tank cleaning machine, tanks can be quickly cleaned and ready to accommodate the next load without the risk of contamination. Responding to the needs of the petroleum and contract cleaning industries, the GJ 10 tank cleaning machine was designed to be the most effective way to fully clean fuel storage tanks.
Related Industries:
Chemical
Impact: Up to 25lbs at 25 feet
(12kg at 7.5m)
Cleaning Range: 35 feet (10m)
Pressure: 50-750 psi (4-50 bar)
Flow: 40-80 gpm (150-300 lpm)
Clearance: 4 inch (102mm)
Cycle Time: 8-15 min.
Fits Through a Standard UST Pipe
Application
The Alfa Laval GJ 10 tank cleaning device fits through a four inch opening and is capable of cleaning a 30,000 gallon underground fuel storage tank with one insertion. This device blasts away contaminants and breaks up dirt and sludge in minutes. The Alfa Laval GJ 10 easily converts the contaminant-laden sludge into a solution which allows for complete liquid extraction and thorough tank cleaning. The device is part of the world-renowned Gamajet range of tank cleaning devices.
Working Principle
The Gamajet range of high impact tank cleaning devices combine pressure and flow to create high impact cleaning jets. Cleaning occurs at the point at which the concentrated stream impacts the surface. It is this impact and the tangential force that radiates from that point which blasts contaminants from the surface, scouring the tank interior. In conjunction with this impact, the device is engineered to rotate in a precise, repeatable and reliable, 360° pattern. This full-coverage, global indexing pattern ensures the entire tank interior is cleaned, every time.
Standard Design
The choice of nozzle diameters can optimize jet impact length and flow rate at the desired pressure. As standard documentation, the Alfa Laval GJ 10 can be supplied with a “Declaration of Conformity” for material specifications.
Options
Electronic rotation sensor to verify 3-D coverage.
Caution:
Do not use for gas evacuation or air dispersion.
Cleaning Pattern
The above drawings show the cleaning pattern achieved on a cylindrical horizontal vessel. The difference between the first cycle and the full pattern represents the number of additional cycles available to increase the density of the cleaning.
Technical Data
Lubricant
Food grade
Throw Length (max)
35 ft
Working Pressure
50 – 750 psi
Working Temperature (max)
250°F
Weight
9.5 lb
Connections
1.5 inch NPT
Materials
316L, PPS, FKM (EPDM and FFKM available)
2.1 material certificate
Dimensional Data
A (in)
10.7
B (in)
8.0
C (in)
3.7
D (in)
1.7
E (in)
3.9
F (in)
3.9
G (in)
5.4
Fits through a 4 inch opening
Cleans a 30,000 gal (130,000 l) UST from one drop
Powerful: 25 lbs (11.5 kg) of cleaning force at 25 feet (7.5 m)
A quality product
The Alfa Laval GJ tank cleaning devices are part of our highly acclaimed Gamajet product range. Alfa Laval technology combines pressure and flow to create high impact cleaning jets that are precision engineered to rotate in a precise, repeatable and reliable 360-degree pattern.
Positive return on investment
The unique design reduces your cost to clean and environmental footprint by minimizing the amount of water, energy and cleaning agents required to clean tanks. Using high-impact jet cleaning instead of traditional ineffective static spray ball reduces waste and resource consumption.
Retrofit old spray ball
Due to the physical size of the Alfa Laval GJ PF, it is now possible to upgrade your cleaning device to a more efficient solution. The low profile Alfa Laval GJ PF fits though a 4” connection, making it possible to install the device into an existing tank top connection.
Validate your tank cleaning process
Alfa Laval Rotacheck validates the rotary jet heads cleaning process, reduces water consumption and product loss. Provides peace of mind.
High-impact, low-resource cleaning
The high-impact jet stream from the rotary jet head is preprogrammed to cover the inside of the tank in a continually denser pattern. This achieves a powerful mechanical impact with a low volume of water, acid or caustic. Most of the GJ rotary jet heads are capable of operating at both high and low pressures.
Smoother, long-lasting performance
The Alfa Laval GJ range includes a unique, grease-lubricated gear to ensure that potentially damaging particles are not trapped in the gear during CIP recirculation. This innovative design ensures a smoother performance and reduces wear and tear.
Energy-efficient design
A faster tank cleaning cycle also cuts energy consumption. Cleaning fluid flows through the nozzles in an automated, geared rotation around the vertical and horizontal axes. In the first cycle, the nozzles lay out a coarse pattern on the tank surface, with subsequent cycles progressively densifying the pattern over the course of eight cycles.
