Our recent R. L. Deppmann Monday Morning Minutes (MMM) articles have introduced a number of velocity considerations in gasketed plate heat exchangers. This week I’ll share two …
Velocity Limits in Gasketed Plate Heat Exchangers – Part 4
Plate exchangers such as the Bell and Gossett GPX series have significantly higher velocity limits than shell and tube heat exchangers, but there are still …
Bell & Gosssett Centrifugal Pumps Switch to Polyurea-Based Grease
In December 2014, Bell & Gossett completed their transition to polyurea-based grease. This change from lithium-based grease increases the maximum normal bearing housing temperature from 180 …
Minimum Velocity for Heat Exchangers with Glycol – Part 3
In part 1 and part 2 of this series, we discussed maximum and minimum heated water velocities in Bell & Gossett SU heat exchangers with standard …
Announcing Bock Water Heaters new optiTHERM® models OT199, OT150 and OT125
R.L. Deppmann is pleased to announce the following product from Bock Water Heaters. Bock Water Heaters proudly announces a new family of 99-gallon optiTHERM® water …
Minimum Velocity in Heat Exchangers – Part 2
Shell and Tube heat exchangers are often used in institutional steam-to-water heating applications. This week’s Monday Morning Minutes post looks at minimum velocities in Bell & Gossett …
Maximum Velocities in Heat Exchangers – Part 1
Shell and Tube heat exchangers are often used in institutional steam-to-water heating applications. We recently received a call from a consulting engineer asking what the …
Heat Exchanger Fouling Factors
One of the most misunderstood items in the heat exchanger schedule is the fouling factor. This week’s Monday Morning Minutes post explores heat exchanger fouling factors …
What Is the ASME U-1 Stamp and Why Is It Important?
The R. L. Deppmann team frequently mentions the need for an ASME U-1 stamp on heat exchangers, tanks, and air separators. What is the ASME U-1 …
How to Identify a Bell & Gossett Pump
This month’s Service Tip comes to us from Customer Service Representative Leigh Janssen. Need to identify a Bell & Gossett pump for repair or replacement? You …