ABB VTR714 Turbocharger Oil Pump Set (2 Pcs)

ABB Turbocharger Oil Pump for VTR714 – NEW (Matched Set of 2 PCS)

The ABB VTR714 turbocharger oil pump assembly is engineered specifically for external self-contained bearing lubrication in large-bore, low- and medium-speed two-stroke and four-stroke marine diesel propulsion and stationary power generation systems.

Offered as a matched set of two pieces—comprising the Compressor End (LA) and Turbine End (TA) pump units—this high-precision mechanical pump ensures autonomous, continuous oil supply directly to the rolling contact bearing assemblies. The VTR-4 series design integrates an internal gear drive running off the main rotor shaft, eliminating dependence on external electric supply during power brownouts or blackout run-down cycles.

Model Details

• Original Manufacturer: ABB Turbo Systems Ltd. / BBC Brown Boveri
• Turbocharger Frame Size: VTR 714 (Series 4 heavy-duty frame)
• Primary Assembly Designation:
  • Compressor End Lubricating Oil Pump: LA70 (Drive gear / intake flange integrated)
  • Turbine End Lubricating Oil Pump: TA07 (Thermal barrier housing integrated)
• Standard ABB Sub-Assembly Reference: Group 97000 / 97065 (Lubricating system group)
• Manufacturer Part Number (MPN): VTR714-LO-SET2 (Cross-ref: 97065-VTR714)

Key Features

1. Autonomous Mechanical Shaft Drive: Operates directly from the rotor shaft movement, ensuring critical lubrication even during sudden electrical plant loss or high-speed emergency shutdowns.
2. Bi-Directional Dynamic Pressurization: Delivers immediate oil flow during initial engine startup and cold maneuvering, minimizing dry boundary friction on ball/roller bearing tracks.
3. Optimized Thermal Dissipation Design: The turbine-end pump (TA07) incorporates structural heat shielding to isolate turbine exhaust temperatures, preventing lubricant coking within the pump cavity.
4. Zero Backlash Precision Gear Profiles: CNC-machined gears limit operational noise, vibration, and gear chatter at extreme turbocharger RPMs.
5. Drop-In Mechanical Tolerances: Fully matched to OEM axial and radial clearances, allowing fast onboard replacement during short port turnarounds without post-machining.

Applications

• Commercial ocean-going vessels: Container ships, VLCC crude carriers, bulk carriers, and LNG carriers.
• Coastal workboats, heavy marine dredge pumps, and offshore support vessels.
• Thermal, island, and mining base-load power plants driven by heavy-fuel-oil (HFO) or dual-fuel (DF) medium-speed engines.

Part Number Cross-References

• ABB / BBC: VTR714 / VTR 714-32 / VTR 714-11
• Internal ABB Group Code: 97065 (Bearing lubricating oil pump complete)
• Pump Assembly Codes: LA70 (Compressor Side) / TA07 (Turbine Side)
• Equivalent Stock Code: 40224469-ALT / 97000-VTR714

Frequently Asked Questions

Can I replace only the turbine-side (TA) pump while keeping my existing compressor-side (LA) pump in service?

While physically possible, it is not recommended. Both pumps undergo identical operating hours and thermal cycles. Replacing the pumps as a matched pair ensures symmetrical lubricant distribution, uniform operational wear, and protects the rotor assembly from unbalanced bearing failures.

What is the recommended replacement interval for VTR714 lube oil pumps?

Standard marine operating protocols recommend visual inspection at every major 8,000–12,000 running-hour service interval, and complete mechanical replacement of the pump sets between 24,000 and 36,000 operating hours (coinciding with bearing replacements), or immediately if internal gear wear exceeds class limits.

Are new sealing O-rings and lock-washers included with this set?

The set contains complete pre-assembled pump units with standard factory internal seals. However, casing cover gaskets and external perimeter O-rings should be verified against your specific housing part numbers and installed fresh during the overhaul.

What causes early failure or cavitation in VTR714 pumps?

The most frequent causes are degraded lube oil (due to fuel dilution or coking), blocked suction strainer screens, water contamination from ambient humidity or casing condensation, and incorrect oil viscosity during cold engine starts in cold climates.