Pump Sizes F35 - F95
SPX FLOW Johnson Pump Marine is one of the leading original equipment pump suppliers to the largest manufacturers world-wide of inboard engines. Engine cooling pumps, the F-series, are available in several different styles and sizes to satisfy different cooling system needs. Flanged pumps which mount directly to the engine and crank shaft pulley mounted pumps are available for a wide variety of engines. Both flange mounted and pulley driven pedestal pumps can be used to provide cooling with a maximum of ease and flexibility.
Performance and Capabilities
- Limited 3 Year Warranty
- Self-priming: a dry pump can lift water up to 3 meters
- Can pass large solids without clogging or damage
- Capacity up to 625 liters/min (9900 gal/hr)
Material and Operational Guidelines
- Standard neoprene rubber impeller for raw or fresh water
- Cannot run dry for more than 30 seconds — water is required for lubrication
- Wear parts are easily replaceable
- Service kits available for all standard models
Mounting and Configuration Options
- Flange Mounted Pumps: F4B-9, F7B-9, F9B-9
- Crank Shaft Pulley Mounted Pumps: F6B-9
- Belt/Pulley Driven Pedestal Pumps: F7B-8, F8B-3000
- Pump ports available from 3/8" to 2 1/2"
Product Catalog Access
See this product in the Johnson Pump Marine Catalog:
Engine Cooling – Raw Water Handling
Different Types of Cooling Systems
Fresh Water Handling
For circulation of the internal, closed, fresh water circuit of the cooling system SPX FLOW Johnson Pump can
offer a number of alternatives in its DC driven Circulation Pump series see Circulation Pumps page.
It is also common to use a flexible impeller pump for this purpose if it is located on the cold side of the system
(max. 55°C/ 131°F ). Other types of belt-driven centrifugal pumps may also be useful. The closed circuit normally transfers heat from the engine to the heat exchanger. The liquid is a water and anti-freeze mixture.
