How to Pick a Centrifugal Pump Part 1: Designing for Owner Satisfaction

How to Pick a Centrifugal Pump Part 1:  Designing for Owner Satisfaction

Hydronic pumps all do the same basic thing—they circulate water.  So why are there so many different types and configurations? And what criteria determines the best pump for a given application?  That’s what we will be exploring in this series on "How to... 

Read More

Steam Basics Part 17: Condensate Pump Discharge Balance Valves

Steam Basics Part 17: Condensate Pump Discharge Balance Valves

Last week we talked about the critical relationship between the steam condensate return temperature and proper pump NPSHR. This week we'll look at the role the discharge balance plays in assuring....

Read More

Steam Basics Part 7: How to Size Condensate Pipe

Steam Basics Part 7: How to Size Condensate Pipe

Today’s HVAC and process engineers have lots of choices when it comes to pipe sizing programs for steam and condensate applications. Put in a load and a pressure and out pops the answer. But ever wonder about how that answer is generated? Or if there are times when it might be suitable to choose another pipe size....?

Read More

Parallel Pumping in Condenser Applications: Part 5 of 5

Parallel Pumping in Condenser Applications: Part 5 of 5

Over the last few weeks the we’ve looked at pumping issues with multiple condensers and pumps.  We have received questions about the topic, including these two:

Why do I need cooling tower outlet On-Off valves if I have an equalizing line?

Why do we see outlet On-Off valves on almost all jobs in North Carolina and only half the jobs in Michigan and Northern Ohio?

Read More