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Questions tagged [plumbing]

9 questions
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Estimating circular pipe flow velocity through a known elevation profile and known length with a known initial pressure and flow velocity

I have a known elevation profile spanning the length of my pipe (~600 meters). An elevation value is given for every five meters of pipe. At the beginning of the pipe, I have a known velocity (1.1 m/s) and a known water pressure (0.1 bar) at the…
Karl
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What's the name of the valve that opens once pipes are mated?

I am building a wastewater system for my van (ie low pressure) and would like removable tanks for ease of emptying. I can shut off the inlet but would like to be able to drop them and automatically have them seal once the inlet is no longer…
Mike
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how wide do pipes need to be in order to divert a river?

for context: this is in reference to a question I asked and have since deleted on the worldbuilding stack for a fantasy setting I have been developing. it was recommended to me that this may be a better place to get answers as this particular part…
bevel_headed
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Plumbing - Existing Building Water Fixtures Supply Units and Operational Demand

If you have an existing building that is several stories, I would like to know the best way for assessing the water supply fixture units demand. If you upfit one of the floors, the new fixture demand requires a larger size than the riser, but you…
friendly-neighbor
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Suction hose or regular PVC hose?

I had a liquid filling machine to which on the suction side I had applied regular PVC hose Some time back I had a problem that after some use the hose was beginning to breathe air. How do I know it was breathing air? I know it was breathing air…
John Snow
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What is the best way to tap a tube into a cylindrical canister?

Recently I bought a copper water canister/ water bottle for a project I'm doing. I'm looking to use it to replace an inline filthy broken stock water-reservoir in my Samsung fridge. My fridge has a 5/16 LLDPE tubing connecting to it providing water…
Evan Carroll
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derive functions for generating projections for the interpenetration of two cylinders for making fittings

​ I want to make custom fittings for constructing large molecular models using copper tubing. I will need to cut a hole in one piece of tubing that will closely fit around another inserted piece. I thought about cutting a pattern on a flat piece of…
Steve Dutky
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Effect of reducing pipe diameter at the outlet

I am pumping various chemicals (oils, resins and solvents) over a distance of up to 12 metres. The inlet and outlet points are at the same height. For the majority of the distance, the pipework will be 1.5". At the final 500mm of pipework, the…
Kendric Rendle-Short
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Minimum thickness for a pipe fitting?

I need to thread a 1/4 bsp (M12) into a 4mm thick aluminium end plate. The working fluid is water at 90 degrees celsius. Is the end plate thick enough to adequately seal the flow or should I consider welding a cylindrical extrusion onto the plate?
ar_66
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