Tag Archives: PUMP

Dean RA Series Pumps

Quick!  Name a Thermal Fluid pump that is 650ºF Fluid compatibility Air Cooled 300# Raised Face Flanges Centerline Mounted Got any ideas?  If you said the Dean RA 3000 Series Pumps, you’d be correct. Dean has perfected the Hot Oil Pump to a point where other competitors just can’t match up.  Sure others have tried 300# […]

Caustic Soda Transfer Pumps: Alternative Solutions

Sodium Hydroxide (NaOH), or more commonly known as caustic soda, is one of the most widely used chemicals in manufacturing processes. We come across pumping applications for caustic quite often and the primary concentration we see is a 50% solution. I am not saying this is the most common around the world, but this is just […]

The Affinity Laws

As part of our ongoing quest for knowledge and perfection, we at Hagler are starting a group of instructional posts pertaining to pumps and their properties.  Of course, without basic fundamental knowledge of pumps, sizing and selectioin can be utterly confusing.  Let’s put some of that confusion to rest. Centrifugal Pump Affinity Laws Centrifugal pumps […]

The Seal-Less ANSI Pump

“With the Dynapump LE pumps’ performance and price, Teikoku USA has blown-away our paradigm for spec-ing and installing ANSI pumps, sealed or sealless, in sizes up to 3 x 2-8.” — Reliability Engineer The more involved I get with companies on their processes and specifying pumps for their applications, the more I find that money is being […]


External Circumferential Piston vs. Lobe – What is the difference? Let me start by saying, I will not write External Circumferential Piston pump the entire blog. It will be referred to as an ECP pump! I often get asked the question, “What is the difference between a lobe pump and an ECP pump?” Let it be […]