In a previous article, I conducted an experiment to verify the strength of polypropylene pipes. Briefly the essence of the experiment: in a polypropylene tube filled with water and stoppered. Itself sent flask with water at night in the freezer, in my intention pipe should be broken by expansion of the water during its transition to a solid state (ice). The experiment was a success, the pipes do not burst.
But my readers surely noticed that the tube had to be pump pressurize both the water supply system and remove air pockets. I decided to listen to readers and to be repeated but with high pressure inside the tubes for reliability.
I built just such a design.
My task pumped water into the high-pressure pipe and a shut off valve. To do this, apply pressure testing of the sprayer.
Pumped over 16 atmospheres closing valve. Hose turns away and combined clutch filled with water cheat plug 10 cents.
House this construction, the sly from his wife, laid in the freezer.
Passed the night, my expectations the result was the same as that of this personazha-
It is time to remove the hack from the shackles of "Snow Queen". I expected at least a crack in the tube! But nothing happened. Pipe remained intact. Crane without visible damage. Plugs are not squeezed out.
Recheck pressure pipe. Perhaps there are hairline cracks that are not visible eye, I thought! But my micro system is sure to keep high blood pressure. But I did not calm down and cut the design in search of hidden defektov- or anything not found.
Total
I was always confident in the reliability of polypropylene pipes, but today again was surprised by its properties. If you have a water supply pipe made of polypropylene that can sleep peacefully. With proper installation and operation, they can last up to 50 years, as stated by the manufacturer. The main thing is not to expose them to UV radiation and do not overheat during operation.
- Cap of 10 cents -link
- Pressure testing of the sprayer -link
- Experiment with freezing №1 - link
- I hope I was able to bring you useful information, if this is so, then let mark plumber "kid-skin"For effort! Thanks.