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.
FEATURES
- Limited 3 Year Warranty
- Self-priming, a dry pump can lift water up to as much as 3 meters. Thus a flexible impeller pump being used for engine cooling does not need to be located below the water line or manually primed.
- Flexible impeller pumps can pass fairly large solids without clogging or damaging the pump. This reduces the need for filtering the incoming fluid.
- For general raw or fresh water applications, the standard long-lasting neoprene rubber impeller is used. All flexible impeller pumps is that they cannot be permitted to run dry for more than 30 seconds. Both the impeller and the seals depend upon the water for lubrication and will soon fail if run dry.
- Wear parts are easily replaceable
- Service kits are available for all standard models.
- 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"
- Capacity up to 625 liters/min (9900 gal/hr)
See this product in the Johnson Pump Marine Catalog: US ‖ GB ‖ DE ‖ ES ‖ FI ‖ SV
Flexible impeller pumps, F-series, provide an efficient solution to most raw water pumping needs. The primary advantage of a flexible impeller pump is its self-priming ability. As the vanes of the impeller are depressed and rebound, they create their own vacuum drawing fluid into the pump.
Pump Mounting
FLANGE MOUNTED PUMPS
Flanged pumps are normal pumps produced in high volumes, customer designed for flange-mounting at a power take off of the engine. Different types of drives can be used but mainly gears or any type of driving members are used.
CRANK SHAFT PULLEY MOUNTED
These pumps are designed for direct installation on the engine crank shaft pulley. Max. revs. 5.000 per minute. To prevent the pump from rotating, a torque bracket from the fastening point on the pump body to a suitable point on the engine has to be used.
PEDESTAL MOUNTED PUMPS
Pulley driven pedestal mounted pumps are used when a free driving pulley is available on the engine. Two different types of pedestal mounted pumps are supplied:
- FB-8 BSP/ FB-8007 NPT
A range of bronze pumps in compact design. Ideal as cooling water pumps in marine engines. Available in sizes from ⅜" to 1½", all with permanently lubricated double ball bearings and mechanical seal.
- FB-3000 BSP OR FLANGE/ FB-3007 NPT
A range of extra heavy duty pedestal mounted pumps excellent for cooling purpose in commercial vessels. The design means separate bearing housings with permanently lubricated double ball bearings, mechanical shaft seal for extended service life. Wetted parts as wear plate, cam and endcover are easily replaceable.
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.
