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Posts Made By:
Gerald D
Forum:
55. Dust Management
Wed 16 September 2009, 10:09
Replies:
30
Blower impeller design & comparisons
Views:
37,992
Posted By
Gerald D
The reason for the heavy starting load is the...
The reason for the heavy starting load is the energy needed to get that heavy "flywheel" spinning up to speed. The thicker the material used in the impeller, the heavier the initial current draw. A...
Forum:
55. Dust Management
Wed 16 September 2009, 06:39
Replies:
30
Blower impeller design & comparisons
Views:
37,992
Posted By
Gerald D
Just to be clear; "Martlet" is a local/UK trading...
Just to be clear; "Martlet" is a local/UK trading house that buys goods in Asia and then put on their own label. Tomorrow Martlet can decide to put their name on the other fan, so the actual name...
Forum:
55. Dust Management
Fri 03 October 2008, 11:46
Replies:
30
Blower impeller design & comparisons
Views:
37,992
Posted By
Gerald D
Here are 2 different dust collectors, both 2 HP,...
Here are 2 different dust collectors, both 2 HP, both with 1 micron bags. From their pictures and specs, they could be the equivalents of our Martlet and Huester:
"Martlet...
Forum:
55. Dust Management
Thu 02 October 2008, 07:02
Replies:
30
Blower impeller design & comparisons
Views:
37,992
Posted By
Gerald D
Setup exactly as you have done it yourself...
Setup exactly as you have done it yourself (mechanical engineers are trained alike :)). My wording was "water sucked up pipe" with the pipe being clear plastic dangling in a tub of water.
...
Forum:
55. Dust Management
Thu 02 October 2008, 00:23
Replies:
30
Blower impeller design & comparisons
Views:
37,992
Posted By
Gerald D
No, only used the pressure change across a known...
No, only used the pressure change across a known hole as a comparison. The actual CFM are of no interest to me.
Forum:
55. Dust Management
Wed 01 October 2008, 12:46
Replies:
30
Blower impeller design & comparisons
Views:
37,992
Posted By
Gerald D
Here are the results: 2237 2238 305mm...
Here are the results:
2237
2238
305mm impeller . . . . . . . . . .. . 300mm impeller
Change attachment's .txt to .dxf to open with CAD:
Forum:
55. Dust Management
Wed 01 October 2008, 12:09
Replies:
30
Blower impeller design & comparisons
Views:
37,992
Posted By
Gerald D
Curious about your impeller design . . . . . ...
Curious about your impeller design . . . . .
Only yesterday we compared two impellers that were giving very similar performance curves, but one needed double the Amps of the other!
Showing results 1 to 7 of 7
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