SVG
Taiko SVG gear pump used in marine fuel and lubricating oil systems.
Inspector Detail
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Common issues
- Gear and bushing wear increasing internal clearance and reducing volumetric efficiency
- Mechanical seal leakage
- Relief valve sticking or set-pressure drift
- Coupling misalignment causing vibration and bearing wear
- Cavitation from a clogged suction strainer or low NPSH
- Motor bearing wear or overheating
Inspection checklist
- Discharge pressure and flow rate check against baseline
- Mechanical seal leakage inspection
- Suction strainer condition and cleaning
- Coupling alignment check
- Relief valve function/lift and set-pressure check
- Motor insulation resistance and running current check
- Bearing temperature and vibration check
- Gear and bushing clearance measurement at overhaul
Service intervals
| Suction strainer cleaning | routine, typically weekly to monthly depending on service |
| Mechanical seal inspection | every 4000-8000 hours or on observed leakage |
| Relief valve function/set pressure check | annually |
| Bearing/coupling inspection | every 4000-8000 hours |
| Internal overhaul (gears/bushings) | typically 15000-25000 hours or on condition - confirm against Taiko's maintenance schedule for the SVG range |
Typical wear limits
| Gear tip/bushing radial clearance | monitor against the commissioning baseline; excess clearance shows up as falling volumetric efficiency and discharge pressure at rated speed - confirm exact figures against the Taiko SVG service manual |
| Mechanical seal face wear | replace on visible leakage or scoring - follow the seal maker's inspection criteria rather than a fixed numeric limit |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Critical spares
- Mechanical seal kit
- Gear set/bushing set
- Relief valve
- Flexible drive coupling element
- Motor bearings
Safety
- Pressurized fuel/oil system - relieve pressure before opening the pump casing
- An overridden or seized relief valve risks line or casing failure
- Electrical isolation required before motor maintenance
- Flammable liquid handling in a fire-risk area - keep spill containment ready
Class survey
Fuel and lube oil transfer pumps supporting essential systems typically fall within Continuous Survey Machinery scope - class wants evidence of relief valve testing and seal integrity, and confirmation that any required standby pump arrangement is operable.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Service & Maintenance
Keep suction filter clean and monitor pressure. Inspect gears and bushings when delivery drops.
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