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| Pneumatic burst valve - what's it's real name? |
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| loply:
Hi folks, I'm building a box which will contain a fluid and then be pressurised by my compressor. It only needs a few PSI and I will regulate it down, but there's a danger of accidentally charging it highly. The box is welded and this would be dangerous so I want to install a little brass fitting which has a disc which ruptures if the pressure exceeds a certain amount, as a safety thing. I believe these are called burst valves and thought they were really common, but for the life of me can't find them on ebay and I now think I have the wrong name for them! Would appreciate any pointers. Cheers, Rich |
| Chazz:
Do you mean 'Relief Valve' like used on hot water tanks? Cheers, Chazz |
| Davo J:
Try pressure relief valve. For only a few PSI you could make one easy enough. You will need one that will let the air escape quicker than it will fill from the compressor to be safe. Dave |
| daz:
I think you are looking for a fusible plug? We use them on refrigeration circuit instead of a safety valve. Normally quarter or three eigth bsp brass fitting with a lead core soldered into the middle. Can't remember seeing one as low pressure as that though. If that doesn't come up with an answer on google check for pressure safety valve. Daz |
| daz:
Forgot to say that the size you will need will be 1.6 times your working pressure and make sure your welds on the tank have full penetration. If this kit is on your premises youy might also need an insurance inspection to keep your home insurance ok Daz |
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