Bilge pumps - Low Boy
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Low Boy Bilge Pump Low Profile pump design for ease of mounting and removal in tight bilge areas. Perfect for vessels with bilge pumps mounted beneath inboard or I/O engines. Removable cartridge style. For L550 LB we have easy-to-install Dura-Port discharge ports to eliminate stress cracking caused by over-tightened hose clamps. The pumps will be delivered including both a straight and a 90° smooth elbow Dura-Port. Max length
146 mm – 5.75” |
Downloads (.PDF) |
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Bilge pumps - Cartridge L450-L750 & Ultima Combo L450UC-L750UC |
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| Cartridge L450, L550, L650, L750 12V DC Cartridge L650, L750 24V DC |
Ultima Combo L450UC, L550UC, L650UC, L750UC 12V DC Ultima Combo L650UC, L750UC 24V DC |
The both pump series consists of four different sizes. The basic version can be combined with either an automatic switch AS888, an electronic float switch or the new ULTIMA switch for automatic operation. The Cartridge Duo pumps are equipped with a non-clogging electronic float switch as standard.
For L450, L550, and L650 and dito Ultima Combo versions, we have improved the design with easy-to-install Dura-Port discharge ports to eliminate stress cracking caused by over-tightened hose clamps.
The pumps will be delivered including both a straight and a 90° smooth elbow Dura-Port as well as a removable check valve.
Both the Cartridge and the Ultima Combo pumps may be manually operated via the Johnson Pump bilge control panel.
CE-approved
Features
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| Design features | |
| Pump body: | Thermoplastic |
| Shaft seal: | Lip seal |
| Shaft: | Stainless steel (SS2343) |
| Voltage: | 12/24 V DC |
| Hose sizes: | L450 - L650: 3/4" L750: 1 1/8" |
Capacity curves for Cartridge Submersible Bilge Pumps
at 20°C/68°F
Click here to view the graph as a scalable Flash graphic (Flash plugin required)
| Cartridge | Amperage | Fuse |
| L450 | 2.5 amp | 5 amp |
| L550 | 3 amp | 5 amp |
| L650 | 3.2 amp | 5 amp |
| L650, 24 V | 2 amp | 3 amp |
| L750 | 3 amp | 5 amp |
| L750, 24 V | 2 amp | 3 amp |
| Ultima Combo | Amperage | Fuse |
| L450UC | 2.5 amp | 5 amp |
| L550UC | 3 amp | 5 amp |
| L650UC | 3.2 amp | 5 amp |
| L650UC, 24 V | 2 amp | 3 amp |
| L750UC | 3 amp | 5 amp |
| L750UC, 24 V | 2 amp | 3 amp |
Downloads (.PDF)
Instruction Manuals, Flyers and Marine Catalogue are found in the Johnson Pump Library





