Marine & Shipboard Pumping Solutions
Rotho peristaltic pumps deliver reliable fluid handling for marine environments - from bilge water and fuel transfer to ballast systems. Self-priming, dry-run capable, and built to withstand harsh conditions.
Marine Pumping Challenges
Marine environments present unique challenges - corrosive saltwater, contaminated fluids, limited space, and the need for reliable operation far from shore. Pumps must handle debris-laden bilge water, viscous fuels, and variable conditions without failure.
- Corrosive Environment: Saltwater and marine atmosphere attack conventional pump components
- Debris & Contamination: Bilge water contains oil, solids, and foreign objects
- Self-Priming Need: Pumps must start dry and lift fluids from below
- Space Constraints: Compact footprint required for engine rooms and holds
- Reliability Critical: Pump failure at sea can be catastrophic

Why Rotho for Marine
Purpose-built features for shipboard fluid handling
True Self-Priming
Prime up to 29.5 feet (9 meters) of suction lift without manual assistance. Perfect for bilge pumping where the pump sits above the fluid level.
- 29.5 ft suction lift
- Starts dry
- No foot valve needed
- Handles air entrainment
Dry-Run Capable
Survive indefinite dry running without damage - critical when bilges run dry or tanks empty unexpectedly. No mechanical seals to fail or overheat.
- No damage from dry running
- No seal failures
- Unmanned operation safe
- Auto-restart capable
Handles Debris & Solids
Pass solids up to 50% of hose diameter - handles debris, barnacles, sand, and contamination in bilge water without clogging or damage.
- 50% solids capability
- No clogging
- Passes stringy materials
- Self-cleaning action
Corrosion Resistant
Hose-only fluid contact eliminates metal corrosion concerns. Hypalon hoses resist fuel, oil, and saltwater - ideal for harsh marine environments.
- No metal fluid contact
- Saltwater compatible
- Fuel & oil resistant
- Extended service life
Recommended Pumps for Marine
Select the right pump size for your shipboard application

S16
Max 209 GPH
Small vessel bilge and fuel transfer
View Specifications →
M34
Max 1,297 GPH
Medium vessel bilge and waste handling
View Specifications →
M55
Max 4,871 GPH
Large vessel bilge and ballast transfer
View Specifications →
L76
Max 8,173 GPH
High-capacity ballast and cargo operations
View Specifications →Need a Marine Pumping Solution?
Our engineering team specializes in shipboard and marine fluid handling systems.
Request a Quote Call (619) 298-3800