Alfa Laval GJ 9.2 Rotary Jet Head
Gj 9.2
The Alfa Laval Gamajet 9.2 tank cleaning device can clean above- and below-ground petrol storage tanks with capacity of up to 4,750 litres (1,250 gallons) and fits through a 50 mm (2) opening. This device eliminates pollutants, filth, and sludge in minutes. Diesel fuel can be used as a cleaning agent, reducing contamination and waste disposal while saving time.
Related Industries:
Processed Foods, Dairy, Beverages, Brewery, Home & Personal Care, Pharmaceutical, Biotech, Chemical
Operating Range:
- Pressure: 50 to 100+ psi (4 to 7+ bar)
- Temperature: 32° to 200°F (0° to 95°C)
- Flow Rate: 6 to 20 gpm (23 to 76 l/min)
- Cleaning Radius: 10 ft. (3 m)
- Wash Cycle Time: 4 to 20 min.
- Impact: 7 lbs (3 kg) at 5 ft. (1.5 m)
Overall Dimensions:
- Height: 20 in. (508 mm)
- Body Diameter: 1.9 in. (48 mm)
- Weight: 5.5 lb (2.5 kg)
- Clearance: 2 in. (51 mm) minimum passageway I.D.
| Inlet Connection: | ¾ in. NPT-Female, ¾ in. BSP-Female |
| Construction/Design: | Parts are machined from 316-L stainless steel investment castings or bar stock. |
| Impeller & Final Shaft: | For increased wear resistance, the input shaft is plasma-sprayed with a Chromium Oxide coating on stainless steel. |
| Shaft & Gearbox Bushings: | Turbine shaft thrust is absorbed by a Tungsten carbide bushing. Gear bushings are carbon filled polyphenylene sulfide. |
| Static Seals: | O-Ring materials are selected for each application. Viton is standard, with Kalrez available. Other materials can be supplied on special order. |
| Dynamic Seals and Bearings: | Rotary shaft and housing seals/bearings are made from carbon-filled-reinforced polyphenylene sulfide for extra long wear and protection against leakage, abrasion and deposit build-up. |
| Nozzles: | Nozzle sizes from 0.1 in. (2.5 mm) to 0.2 in. (5 mm) |
| Drive Mechanism: | The wash fluid enters the Alfa Laval Gamajet at the inlet collar where it encounters and spins turbine blades. The turbine blades are attached to the top of the drive or rotor shaft. The bottom of this shaft is connected to the inside of a sealed, robust planetary gearhead which then turns the body in the horizontal plane and the nozzles in the vertical plane. |
| Planetary Gearhead: | The sealed planetary gearhead has an external casing made of steel, surface-anodized to become stainless. This sealed gearhead is located inside the gearbox, which itself is sealed, and thus does not require any lubricant. All internal gearhead parts are hardened sintered steel. |
| Lubricant: | Food-grade grease is inside the sealed gearhead casing. |
Alfa Laval GJ 9.2 Rotary Jet Head Application
- Fits through a 2” (50 mm) opening
- Cleans standard ASTs up to 1,250 gallons (4,750 l) in capacity
- Powerful: 7 lbs (3 kg) of cleaning force at 5’ (1.5 m)
- Operates at lower pressures
Working Principle
The Alfa Laval Gamajet 9.2 tank cleaning system combines pressure and flow to create powerful cleaning jets. Cleaning occurs at the point when the focused stream strikes the surface. The collision and tangential force generated at that spot remove impurities from the surface, cleansing the tank interior. The device is designed to rotate in a precise, repeatable, and consistent 360° pattern. This comprehensive, global indexing pattern ensures that the tank interior is thoroughly cleaned on each visit.
Gamajet 9.2 Rotary Jet Head Leaflet
Cleaning large tanks efficiently starts here. The Alfa Laval Gamajet 9.2 handles tough jobs with precision. Reach out to our expert for sizing advice.