The Series 'ESS' vertical pumps feature a high efficiency semi-open impeller, cast construction for superior strength and corrosion resistance, and a cantilevered SS 316 shaft guided by a graphite or Rulon bushing. This same bushing design and unique column assembly allows for reliable operation with columns up to 44".
The bushing is lubricated by the product being pumped, thus no external flushing liquid is required. However, since the bushing is being product flushed, these pumps must be used inside the tank. The optional heavy duty mounting plate uses a clamp arrangement which allows it to be positioned anywhere along the length of the pump column. The optional discharge pipe then fits through the mounting plate for easy drop-in installation.
Pumps are constructed of SS 316 throughout for maximum corrosion resistance. Gasket is PTFE with 316 SS, shaft vapor seal is FKM. Shaft is available in four lengths to 44". Graphite or Rulon shaft bushing provides vibration-free service and is located directly above the semi-enclosed high efficiency impeller, therefore, it is product flushed. Optional mounting plate can be clamped and tightened at any given point on the pump column, which allows the pump to be set at the desired depth. Motors are 3450 RPM @ 60 Hz or 2850 @ 50 Hz, TEFC or EXP, painted with two-part epoxy paint. Single phase TEFC motors include 8 ft. (2.4m) line cord.