ITT has enhanced its Goulds Pumps line of stainless steel vertical multistage pumps with the introduction of new e-SV models. The new hydraulic design is designed to provide improved NPSHR levels. In addition, by eliminating the need to remove the motor, maintenance time can be significantly reduced. The mechanical seal is also replaceable without the need for pump disassembly, and the 'O' ring seat is designed to allow easy disassembly of the outer sleeve.
All-stainless steel construction and NSF certification allow the e-SV pump to meet municipalities' requirements for pure water. When combined with ITT's HydroVar controller, the e-SV pump offers an additional 10% savings potential from the previous generation pump.
E-SV pump's hydraulic design results in lower NPSHR, reducing piping and elevation expenses by over 20%, according to ITT. Design methods also target an MTBF of 20,000 hours. The impeller axial thrust is minimized, resulting in longer bearing life and use of standard motor configurations. Pumps 10 hp and above also feature the i-ALERT monitor, which continually measures vibration.