For high flow steering pumps that require external pressure relief, this high flow filter pressure relief valve combo unit is an ideal option.
Pressure relief valves are a critical component of every steering system to protect against over-pressurization but they are also one of the biggest producers of heat within the system. Most high flow systems on the market return the relieved fluid directly to the reservoir, skipping any fluid cooler plumbed into the return side of the system.
With this filter relief valve combo unit, steering fluid is relieved directly into the filter where it mixes with the main return fluid. Using this setup, 100% of the steering fluid, including the hottest fluid in the system, can be plumbed to a cooler prior to returning to the reservoir. This also eliminates one hose and multiple potential leak points from the steering system.
Plumb the inlet tee fitting (included) into your high pressure line and plumb the filter inlet and outlet as you normally would in the return side of the steering system. The selected spin-on filter is rated to handle up to 25 GPM (gallons per minute), more than enough to handle even the highest flowing steering pumps.
Don't forget to add an optional mounting bracket for easy installation.
***PLEASE specify desired relief pressure setting in order notes. Typical relief settings:
- Rock crawler/Ultra4 racer/trail rig: 1650 PSI
- Monster truck: 2200 PSI
- Grade 6061 aluminum construction
- Pressure relief valve: 1500-3000 PSI adjustable (preset to 2000 PSI unless specified)
- Rated flow: 25 GPM
- 50% filtration efficiency (Beta2): 7 microns
- 99.9% filtration efficiency (Beta1000): 23 microns*
- High pressure inlet tee: -8 AN
- Low pressure return inlet port: -12 ORB (o-ring boss)
- Outlet port: -12 ORB
- Replaceable spin-on filter
*Beware of manufacturers claiming a "nominal micron rating" when in fact, there is no industry accepted definition for "nominal". Filter effectiveness can be described by efficiency at capturing particles of a certain size, or Beta Ratio, which is determined in accordance with ISO 16889 international standard.