Latest Updates

Understanding NPSH: and How to Calculate It for Weltech Centrifugal Pumps

Learn what Net Positive Suction Head (NPSH) means, why it matters for pump reliability, and how to calculate NPSHa vs NPSHr using a real Weltech CP-Series worked example.

The Role of Specific Gravity and Viscosity in Centrifugal Pump Selection

How specific gravity and viscosity drive motor power, head correction, efficiency and pump-type selection in any centrifugal application.

Pump Material of Construction Guide: Choosing the Right MOC for Every Liquid Application

An engineer's guide to selecting the right pump material of construction — cast iron, SS316, duplex, alloys, plastics — for every liquid application.

How to Select the Proper Pump for Under-Vacuum Applications

A complete guide to selecting centrifugal pumps for vacuum service — covering NPSHa calculation, seal selection, pump type comparison.

Affinity Laws for Centrifugal Pumps: The Engineer's Guide to Speed, Flow, and Power

Your comprehensive guide to Understanding the Fundamental Concept of Affinity Law in Pumps

How to Select the Right Mechanical Seal for Your Pump — Based on the Liquid You Are Pumping