Dahl
Fuel Filter
Water Separator
Over the Road
Marine
Off Highway
Agriculture
AMSOIL/DAHL Fuel Filter/Water Separator Removes Fuel System Contaminants Along With Water
 Water and solid contaminants displace the fuel's lubricative coating on the high precision injection components. The loss of this protection results in wear, erosion, surface pitting and eventual pressure loss.
Many existing fuel filters aren't designed to remove significant amounts of water. They are designed to do their job in a single step. This means they must be porous enough to allow sufficient flow volume which limits filtering ability to between 10 and 30 microns. Any tighter filter media would plug too quickly and result in frequent element changes.
This system takes care of those shortcomings. AMSOIL/DAHL's functional duel chamber 3-stage fuel filter/water separators provide efficient suction side water separation and contaminant filtration. The key is the unique AMSOIL/DAHL patented depressurizer cone which spreads the flow of the fuel. With more area to flow over, greater separation of water and dirt from the fuel is achieved.
AMSOIL/DAHL fuel filter/water separators have less mechanical flow resistance than other separators, because the fuel changes direction only twice. The AMSOIL/DAHL unit removes virtually 100% of the water and contaminants.
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- The contaminated fuel enters the inlet port.
- The T-Bolt redirects the fuel downward through the centerpipe.
- Fuel flows through the reverse flow valve.
- Fuel flow is spread by the depressurizer cone.
- As fuel is discharged from the depressurizer cone, 80% of contaminant separation takes place. Most of the solid particles and water settle into the quiet zone of the bowl.
- As the fuel rises upward, any remaining minute water droplets coalesce on cone, baffle and bowl surfaces. Droplet size and weight gradually increase causing downward flow into bowl.
- Fuel is filtered completely by the element. The clean fuel then continues upward through the outlet port and on to the pump and injection system.
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Here's Why AMSOIL/DAHL Is Right For Your Equipment
- The AMSOIL/DAHL system eliminates water from fuel before reaching the fuel pump and injectors. this prevents the major cause of fuel injection system failure.
- It prolongs system life by eliminating pump and injector overhauls caused by water contaminated fuel. the cost of shop labor alone, just to repair the injection system on a 6-cylinder rig, exceeds the cost of the AMSOIL/DAHL fuel filter/water separator.
- It reduces the need to repair the fuel pump and/or injectors that could easily tie up equipment for one or two days. The loss of income in just a few hours of equipment downtime again would pay for a AMSOIL/DAHL fuel filter/water separator.
- The AMSOIL.dahl system separates solid contaminants from the fuel before reacing the fuel pump and injectors.
- The AMSOIL/DAHL system is easily installed.
- Install it at any location before the fuel pump. (Complete installation instructions included with the AMSOIL/DAHL unit.)
- This system can replace all other primar filters and water separators. It both filters and separates.
- It takes minimal space to install. Clearance space for element removal is between 1 1/2 to 3 1/2 inches. Some models are installed with as few as two easily accessed bolts.
- The AMSOIL/DAHL system is easily serviced.
- ADF20 is serviced by loosening the T-Bolt handle. It also features a self-ejecting element.
- The transparent bowl (up to 24 ounce water capacity) makes constant draining unnecessary. Draincock is easy to use.
- Most of the solid contaminants are separated by the patented depressurizer cone in the bowl BEFORE reaching the filter element. Another factor resulting in less frequent changes is the extra paper in the filter element. Under normal conditions, the element can last up to 40,000 miles.
- The AMSOIL/DAHL system includes a referse flow valve. This holds the prime in the fuel system by not allowing flow back to the tank during shut-down. (Removable primer plug at top assists where complete priming is required.)
- The AMSOIL/DAHL system helps eliminate air entrapment because the inlet and outlet ports are at the top of the unit. The fuel changes directions only twice (see flow diagram) and so offers less mechanical resistance. Less resistance means longer pump and element life.
Superior Engineering
- Die cast aluminum
- Impact-resistant large transparent bowl
- Element service life is several times longer than conventional filters
- Easy to install, service and clean
- Positive air elimination
- Advanced spring design assures positive element seal
- Less mechanical resistance because of streamlined flow path
- Baffle system is designed to stop emulsification and disperse trapped air
- Ball check valve to stop reverse flow
- Five models specifically designed to fit engines of various capacities
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Proven Performance in the laboratory and in millions of miles/hours of commercial and industrial operation. You can be sure that each AMSOIL/DAHL unit is designed right, built right and does its jub right.
Marine Durability is assured. Marine units ADF75, ADF11 and ADF21 have passed severe U.L. testing and are U.S. Coast Guard accepted for Marine Applications. Tests include fire endurance, vibration fatigue, impact resistance and thermal shock.
Clean Fuel provided by a AMSOIL/DAHL fuel filter/water separator eliminates engine problems caused by water and solid contaminants in fuel. In addition, you can expect:
- Longer Injector System Component Life
- Full Power Performance
- Lower Element Replacement Cost
Technical Information:
Cick on the following for additional technical information about the AMSOIL/Dahl Fuel Filter/Water Separator:
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