Blog

National Pump Company has developed new impeller patterns specifically to pour 300 series stainless steel impellers, which now provide the same high performance and efficiency as our bronze designs. With fourteen (14) models to choose from, they are available from inventory for a quick turnaround. Flow ranges are from 200 GPM to 3,200 GPM at […]

The location that the pump operates on the pump curve can play a critical role in the design and evaluation of the pump. Hydraulic Institute (HI) standards recommend or define values based on which region the pump is operating in. The Rotodynamic (Centrifugal and Vertical) Pumps – Guideline for Allowable Operating Region (ANSI/HI 9.6.3-2012) defines […]

On display at our booth for AWWA ACE17 was the new EX-Series submersible pump. The show, which was held in Philadelphia, June 12th  – 14th drew a large crowd and many attendees stopped by our booth to look at and get first-hand information about this heavy duty submersible pump, designed for aggressive water applications. Features […]

When selecting a pump, it is extremely important to ensure that the net positive suction head available (NPSHA) is greater than the net positive suction head required (NPSHR) of the pump to prevent cavitation. NPSHA is the amount of absolute suction head available in feet of liquid at the first stage impeller datum minus the […]

National Pump Company is proud to announce our ISO 9001 standard certification renewal from ISO 9001:2008 to the new ISO 9001:2015 standard. As part of a continued focus to improve its quality management system in efforts to exceed customer expectations, National Pump Company is proud to announce that it obtained the ISO 9001:2015 certification. This […]

Vertical turbine pump (VTP) and driver alignment is critical for extending the serviceable life of the driver, pump bearings and mechanical seal assembly while also providing vibration free service of your installation. As VTPs utilize multiple components which may make proper field alignment more complicated, it is important to apply the skill, time and patience […]

Many Farmers and Pump Dealers only consider the initial purchase cost of the pump and motor as their TOTAL COST OF OWNERSHIP, without considering ALL of the key factors which include: Pump and motor Initial purchase price Installation costs (vertical turbine versus submersible turbine) Service Life of the equipment based on service history (5, 10 […]