PTS flow bench build
The design of this bench evolved from a forum of enthusiasts with many succesful examples built. After building the bench, I can certainly attest to the design and though I did not use all the electronic gadgets that were developed for the bench, the ones that I did buy and use work very well.
Plans and parts can be purchased from PTS Flowbench Technology: http://www.flowbenchtech.com/
PTS hosts a very helpful forum for those that embark on the build.
Aside from the plans, here’s what I bought from PTS:
- Motor variable speed control and contactor http://www.flowbenchtech.com/ssr.html
- Diretional valves http://www.flowbenchtech.com/valves.html
- Pressure pickups http://www.flowbenchtech.com/pressurepickups.html
- Motor control: controls motor speed to maintain a chosen depression and works very well http://www.flowbenchtech.com/motorcontrol.html
I didn’t go for the PTS digital manometer and software (by all accounts a fine unit) opting instead for the Performance Trends Port Flow analyser and black box which I am very happy with: http://performancetrends.com/pfa.htm
I built provision for 6 Ametek 19996-00 vacuum motors but only installed 4. This ended up delivering about 290cfm @ 28″ depression.
Here’s the final product: