Central Heating Pressure Test
Hi,
I'm thinking ahead when I go to install my new Combi boiler pipework. I obviously have to pressure test the pipework, to ensure the pressure relief system works. What test method is best - dry or wet? I've noticed Screwfix sell a "dry pressure test gauge" with a Shrader valve. Obviously this will only allow to test using pressurised air. I've noticed some posts on the newsgroup about the dangers of dry pressure testing. Can anyone give an opinion on the better methods, and tools to buy. Thanks, W. |
Central Heating Pressure Test
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Central Heating Pressure Test
|
Central Heating Pressure Test
|
Central Heating Pressure Test
If you are doing a wet pressure test, that implies (probably) that the
pipework is all complete. If you have a sealed system, you have the system's pressure guage anyway. If you have a vented system, you can't do a pressure test (unless you seal off the pipework to the header tank). So I can't really picture how you would do a wet pressure test using a dry pressure test guage in any case. Sorry, probably not explained it very well. For testing a sealed system, I was thinking of performing a wet pressure test. I was originally under the impression that I could use the Screwfix gauge, until I saw it was a "dry pressure" test tool. I was therefore wondering if I could still use it, once the system is filled with water, by using the Schrader value to increase the pressure - with air. I.e pressurise the water in the system by pumping air into it. I suppose the pressure in a wet pressure test *should* really be provided by either a) mains water pressure or b) a hydraulic pump. I'm really wondering if I can buy the Screwfix tool to perform wet and dry testing, or at least use the gauge to indicate the pressure during a wet test. (since I may not have the boiler connected at that point). Anyone, any ideas? |
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