SD300 Deepwell Pump (Cat 95)

Typowe problemy

• Bottom (cargo-lubricated) bearing wear from dry-running or abrasive cargo residue
• Hydraulic motor internal leakage reducing pump speed and output
• Column pipe or shaft misalignment causing vibration and accelerated bearing wear
• Deck seal/stuffing box leakage allowing cargo or hydraulic oil ingress
• Underperforming stripping (self-priming) system leaving excessive cargo residue
• Hydraulic oil contamination (water or cargo ingress) degrading the HPU
• Impeller wear or erosion on abrasive or corrosive cargoes

Lista kontrolna przeglądu

• Check hydraulic oil condition (moisture content, particle count) at the HPU
• Inspect the deck seal/stuffing box for leakage
• Verify bottom bearing clearance/condition when the pump is pulled at dry-docking
• Check the pump column for straightness and vibration while running
• Verify stripping system vacuum/eductor performance against baseline
• Measure hydraulic motor case-drain leakage to check for internal wear
• Check hydraulic circuit non-return and pressure relief valves
• Confirm gas-freeing of the pump column per cargo history before any hot work

Interwały serwisowe

Typowe interwały dla tej klasy konstrukcji, nie dane producenta dla Twojego modelu. Wiążąca jest instrukcja producenta.

Typowe granice zużycia

Zakresy są typowe dla tej klasy konstrukcyjnej. Decydujące są zawsze dokumenty producenta dla danego numeru seryjnego.

Krytyczne części zamienne

• Bottom bearing (rubber or composite, cargo-lubricated)
• Deck seal / stuffing box seal set
• Hydraulic motor seal kit
• O-ring and gasket set for column joints
• Hydraulic oil filter elements
• Impeller wear ring (if fitted)

Bezpieczeństwo

• Enclosed-space and gas-freeing hazards when entering the tank around a pulled pump column
• Stored hydraulic pressure - isolate and depressurise the HPU before opening components
• A seal failure can contaminate cargo with hydraulic oil or vice versa - check compatibility before running
• Hot work restrictions near cargo pump columns due to residual vapour

Przegląd klasyfikacyjny

Cargo pumps on tankers fall under class's cargo system survey requirements: expect checks on IMO Annex II stripping performance where applicable, pump room gas detection, and hydraulic power pack safety devices (relief valves, low-level alarms).

Szacowana trwałość: Framo deepwell pump columns commonly stay in service 15-20+ years with periodic bearing and seal renewal. The bottom bearing and seals are the practical wear-limiting items, not the column or casing, so actual life is cargo- and condition-dependent rather than a fixed hour figure.