⚓ Working on this equipment?
Ask the AI troubleshooter, log your hours on board and turn them into invoice-ready service reports — for this exact model.
Start free — 14 days →
No credit card required
🔧 70 verified suppliers & service companies for Wärtsilä in the Maritime Network
Find suppliers →
Wärtsilä
7LW22-GS-50Hz
The Wärtsilä 7LW22‑GS‑50Hz is a 7‑cylinder, 4‑stroke Vasa 32 auxiliary diesel engine driving a generator set that delivers up to 931 kW (1 164 kVA) at 750 rpm for shipboard power generation.
980.0 kW
Power
Engine Specifications
7
Cylinders
220 mm
Bore
320 mm
Stroke
4-stroke
Stroke Type
Components & Design
Component data being added…
Technical Data
Typ
4-Takt, Direkteinspritzung, turbogekühlt und Ladeluftkühlung
Verdichtungsverhältnis (Vasa 32)
13.8:1
Mittlerer Druck (D-Rating)
21.9 bar
Mittlerer Druck (E-Rating)
24 bar
Spezifischer Brennstoffverbrauch (100% Last HFO)
187 g/kWh
Spezifischer Brennstoffverbrauch (85% Last HFO)
185 g/kWh
Mittlere Kolbengeschwindigkeit (Vasa 32)
8.4 m/s
Verdrängervolumen je Zylinder (Vasa 32)
28.15 dm³
Ventile je Zylinder
2 Einlass + 2 Auslass (Vasa 22: 4-Ventil-Technologie)
Schmiersystem
Zirkulationsöl (Zahn- und Radpumpen)
power kw
980
rpm
750
fuel type
HFO/MDO
configuration
L
genset kw
931
genset kva
1164
frequency hz
50
Related equipment 10
Wärtsilä 12VW20-GS-50Hz
same series
Wärtsilä 12VW20-GS-60Hz
same series
Wärtsilä 12VW20DF-GS-50Hz
same series
Wärtsilä 12VW20DF-GS-60Hz
same series
Wärtsilä 12VW22-GS-50Hz
same series
Wärtsilä 12VW22-GS-60Hz
same series
Wärtsilä 12VW26-GS-50Hz
same series
Wärtsilä 12VW26-GS-60Hz
same series
Wärtsilä 12VW31-GS-50Hz
same series
Wärtsilä 12VW31-GS-60Hz
same series
🤖 Ask about this model
One free question — answered like a marine engineer. No account needed.
Common failures & inspection points
Einspritzpumpen-Plunger Klemmen bei HFO 380: Fehlende Wärmespeicherung in den Pumpen führt zu unzureichender Brennstoffviskosität bei Niedriglast (~10%) oder Ab
Pleuelstangen-Lager (Kolbenbolzen u. Großendlager): Wärtsilä Servicebriefe dokumentieren verschleißabhängige Ausfallmodi. Ersatz erforderlich bei Verschleißgren
Zylinderlinern-Verschleiß u. Quellrisse: Leckagen an O-Ring-Nuten, Risse im Liner, Blow-by erfordern sofortige Maßnahmen (Kolben + Liner-Wechsel). Klasse-allgem
Turbolader-Verschleiß (VTR-Lader): Verbrauchte Turbos erhöhen SFOC, senken max. Leistung. Wärtsilä bietet Performance-Upgrade (moderner, effizienterer Lader, SF
Brennstoffeinspritzpumpen-Laufbuchsen-Verschleiß: Undichtigkeiten aus abgenutzten Buchsen + Plungern reduzieren Leistung. Austausch empfohlen bei 12000-16000 h
Type-general inspection and maintenance points for this equipment category — not model-specific.
Suppliers & Spare Parts
Direct links to manufacturer, datasheet, spare-parts portal and dealers — request access below.
📄 Request sourcing links & documents🛠 Manage this equipment in your fleet
Cases, daily reports, timesheets and AI troubleshooting in the OceanSphere Marine app — free for 14 days.
Start free trial →🔎 Suppliers & service for this equipment
Find manufacturers, repair shops and spare-part dealers in the Maritime Network — our global company directory.
Maritime Network →Working on this unit?
Log hours, photos and findings into an invoice-ready service report — OceanSphere Marine, 14-day free trial.
Need a service partner for Wärtsilä?
114,000+ shipyards, suppliers and service companies in the Maritime Network directory.
Equipment Model #124622
· ✓ still in production
Need spare parts for this model?
We know 12+ companies supplying Wärtsilä 7LW22-GS-50HZ. Tell us what you need — we obtain the quotations for you.
NAVTRONIC A/S · NorwayRadio Holland Group BV · NetherlandsSea Link Distriparks Pvt LtdSea-Com · JapanAkil Corporation · IndiaBaltic Spares Service Sp. z o.o. · Poland
+6 more
Wer liefert dieses Teil? 197 Betriebe im Verzeichnis · 15 aus Herstellerlisten
Chongqing Chuanqing Marine Power Equipment Co., Ltd.
Chongqing, China
FM-Power Serviços e Peças
Rio de Janeiro, Brazil
MARE Supply & Services
Haarlem, Netherlands
Marine Ecology Equipment OÜ
Tallinn, Estonia
OSM International
Miami, United States
Qinhuangdao Hy Marine Machinery Equipment Co., Ltd.
Qinhuangdao, China
World Marine Automation System
Busan, South Korea
2K Shipping & Trading Ltd
Kayaboyun, Turkey
A & D Sales Ltd
Skelmersdale, United Kingdom
ALME MARINE SA
Greece
ANEXUS
Barcelona, Spain
Weitere aus Hersteller- und Marktplatzverzeichnissen:
Global Services (Europe) Ltd · United KingdomA. Nobel en Zn. - Filtration & Separation B.V. (Headquarters) · NetherlandsBaltic Spares Service Ltd · PolandCimar S.R.L. Industrial and Maritime Consulting Trading and Services · ItalyDallaserra Ridderkerk Spares BV · NetherlandsGulf Marine Tech (GMT) · United Arab EmiratesHARBOR EAGLE GEMICILIK ANONIM SIRKETI · TurkeyHyosung Marine Co., Ltd. · South KoreaMSHS Pacific Power Group · United StatesMabax Global Limited · NigeriaPK OEM Parts B.V. · NetherlandsS KELEPOURAS & CO · Greece