Specifications Of Seawater Pump - Yanmar 3JH4E Service Manual

9. Coolant system

9.2.1 Specifications of seawater pump

(1) Performance
Flow
Self-priming ability
Tightness test
(2) Durability (reference data)
Impeller
Flow drop
Leakage from seals
Mechanical seal, water
Lip seal, oil
Cover, wear plate
Other parts
Min. 3800 L/h at
pin = -5 kPa (-0.05 bar)
pout = 95 kPa (0.95 bar)
-1
n = 3250 min
after 1500 h duty
Max. 10 s at
Suction head = 0.5 m
length of pipe = 0.6 m
-1
n = 500 min
400 kPa (4 bar)
Min. 1500 h
Max. 10% after 1000 h
3
Max. 3 cm /h
3000 h
3000 h
Min. 3000 h
Min. 6000 h
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