 Features include |
- High Performance Filtration
- Accumulator Stands
- Sealed Reservoir with nointernal welds
- Kidney Loop Filtration Systems
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- Pump PMDiagnostics
- Automatic Inline Oil Contamination Analyzers
- High/Low Pressure Start-up
- Weldless Piping Headers
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| 6000 HP Servo Hydraulic Power Supply Reliability Case Study |
- 6 DOF Mast System w/15k lbs. payload
- Run time – 8 to 24 hours per day
- 6 fatigue rated actuators with hydrostatic bearings
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- Pay Load – up 15,000 lbs
- 350 gpm 3-stage servovalves with filtration better than ISO 13/11 for long reliability
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The design goal of the hydraulic support equipment built by Control Power was to configured 9 system with minimum to zero non scheduled down time.
To accomplish this the following features were implemented: |
- Supercharged pumps – to eliminate cavitation, provide positive head and filtered oil to pump
- Pumps run at 1200 rpm instead of rated 1800 rpm to extend bearing life and improve pump inlet suction minimizing oxidation of the oil
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- Kleenvent – sealed reservoir from atmosphere to minimize ingestion of ambient moisture and particulate when oil level changes with extension and retraction of the actuators.
- Ingression of contaminant limited to rod seals on the actuators
- Kidney loop filtration using surface filters
- Kidney loop filtration using depth filter media to collect fines
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| The system design features resulted in the following: |
- No unscheduled down time since installation in 1996.
- Original hydraulic oil since installation
- Hydraulic oil Total Acid Number (TAN) increased less than 10% since installation
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- The ISO count maintained is 12/10 or better
- The pumps, actuators & servovalves have not been repaired or replaced since installation
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The Myles Group 
Control Power CO
J.E. Myles INC
Control Power Reliance
St. Lawrence LLC
