This impeller is an original Johnson Pump SPX Flow Sweden product. Unlike cheap Asian counterparts, the original SPX FLOW impeller from Johnson Pump: a correct cooling current, a significantly longer service life, excellent self-priming capacity, sufficient cooling immediately at start An additional feature of pumps with a flexible impeller is that they can pass through relatively large solids without clogging or damaging the pump. This reduces the filter requirement of the incoming liquid Remember that the wheel needs to be replaced every year. Wait the cooling system carefully. Replace impeller once a year. Make sure you use only genuine SPX FLOW Johnson Pump Marine wheels or well-known brands. Then you can be sure that the impeller fits your pump perfectly. The special filter of the PUMProtector 09-24653-01 was developed by Johnson Pump for the long life of wheels. The universal SPX Flow Johnson pump inlet sieve is suitable for all pump types with a flexible wheel. Wait the cooling system carefully. Clean the filter grille as required of dirt and algae and replace the wheel once a year. It is recommended to clean the filter element regularly and replace the impeller, even if the vacuum performance of the pump decreases. For example, if vacuuming takes more than 30 seconds. Flexible wheels – functional principle vacuum is created when aligning the flexible impeller blades from the cam, suction of liquid into the pump. A rotating impeller promotes liquid from the inlet to the outlet. Thus, due to their construction, pumps with flexible impeller can promote relatively large solids When the flexible impeller shovels come into contact with the cam again, they bend and the liquid comes out of the pump in an even flow. Liquids can be pumped upside down Johnson Heavy Duty Bronze Universal Pump Impellers are raw water resistant and compact. These pumps have been developed for a variety of marine applications and have proven themselves in terms of quality and reliability. With excellent self-priming capacity, these pumps are ideal as cooling water pumps for marine engines, bilge pumps, deck wash pumps, fresh water pumps, fuel pumps (nitrile impeller only) and other applications For general raw or fresh water applications, the standard durable neoprene rubber impeller is used. A general feature of all pumps with a flexible impeller is that they must not run dry for more than 30 seconds. Both the impeller and the seals are dependent on water for lubrication and will soon fail when running dry The main advantage of a flexible impeller pump is its self-absorbency. When the blades of the impeller are pressed down and bounced back, they create their own vacuum that sucks liquid into the pump. A dry Johnson pump can lift water up to 3 metres. Thus, a flexible impeller pump, which is used for engine cooling, does not need to be arranged under the water line or manually sucked in., Manufacturer: SPX Flow Technology Sweden AB