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# Quick Disconnects - Page 3

Quote:
Originally Posted by tsm106

Flow is not the same anywhere in the loop. You're probably confusing flow with water temperature which will equalize throughout the loop. Flow can be very different due to restriction of blocks, fittings, etc.

Nope. Exactly the same.
There are different ways to measure flow, volumetric flow rate and the flow velocity. Volumetric flow, as typically measured with a flow meter in gallons per minute or liters per min, etc, will remain the same at any point in a loop. Flow velocity, how fast the fluid is moving at a certain point, will vary.

If they were mixed in the same loop, flow velocity would be slower in a larger diameter tube than it would in a smaller diameter tube, and even faster still when traveling past a point of larger restriction like a block. It's like when you put your thumb over the end of a hose. At the point of constriction the flow velocity will be much faster to force the same uniform volumetric flow through the much smaller opening, just like how a block does in a loop.
Quote:
Originally Posted by Unicr0nhunter

There are different ways to measure flow, volumetric flow rate and the flow velocity. Volumetric flow, as typically measured with a flow meter in gallons per minute or liters per min, etc, will remain the same at any point in a loop. Flow velocity, how fast the fluid is moving at a certain point, will vary.

If they were mixed in the same loop, flow velocity would be slower in a larger diameter tube than it would in a smaller diameter tube, and even faster still when traveling past a point of larger restriction like a block. It's like when you put your thumb over the end of a hose. At the point of constriction the flow velocity will be much faster to force the same uniform volumetric flow through the much smaller opening, just like how a block does in a loop.

Here's a personal example of your explanation of constriction. In our kids bathroom, the contractor used smaller diameter hoses connecting the wall outlet to the sink fixtures. It's annoying as hell because the change in flow causes a squealing thru the fittings. One of these days I need to change out the hoses lol. The higher velocity seems to really put a beating on the fixture due to the increased turbulent flow.
 The 3930 (26 items) Junior's 3930 (22 items) DATA/HTPC (20 items)
 The 3930 (26 items) Junior's 3930 (22 items) DATA/HTPC (20 items)
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