The Dragon Premium 250 centrifugal pump uses the latest design with many enhancements.
The concentric housing is 35% thicker for extra strength and extended service life and reduces the radial load of the bearings.
The impeller is designed to reduce turbulence, eliminate recirculation, lower radial and thrust load, and provide a smooth flow of fluids.
The larger diameter shaft gives heavy-duty performance with minimum shaft deflection.
Brass labyrinth seals are used on both the inboard and out board bearings to protect from contamination and for longer seal life.
Heavy-duty SKF outboard bearing assembly consist of a pair of angular contact bearings with high thrust load rating and zero end play.
The heavy-duty SKF inboard bearing is a double row ball-bearing with high radial load rating to compensate for the larger size impeller and heavyduty applications.
The optional oil bath lubrication system is designed with a larger oil reservoir, that provides free circulation of oil and better heat dissipation for longer bearing life.
The mechanical seal has a Tungsten Carbide rotating assembly plus a 316 stainless steel cage assembly with a Silicone Carbide stationary for greater seal life.
All components of the Dragon Premium 250 centrifugal pump are 100% inter-changeable with other brands such as Mission, Halco, etc.