Must the spherical surface of the ball element in the ball valve on the hydrogen peroxide pipeline have holes?
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As the title suggests, the ball valve we are installing now is from Global Valve; is it possible to have it processed by ourselves? How large does it need to be and how should it be processed? Thank you!
If there are holes, then it won’t **die, right? There will be internal leakage in the valve. Just allow air to be released from the closed pipeline.
It shouldn’t be necessary. Puncturing is mainly done on the upstream side of the valve ball, usually in cases where it’s a fixed-ball valve or when the medium is quite viscous; this is done to prevent the medium trapped inside the ball chamber from expanding rapidly due to heat when the valve is closed, thereby avoiding damage to the valve. Hydrogen peroxide does not fall into this category of media. If puncturing must be carried out, it’s best to have a professional do it, so as to avoid damaging the ball surface and causing leaks.
3# hai*aofeng: Is this consideration given to the oxygen produced by the decomposition of hydrogen peroxide? I think a piping exhaust system should be installed instead of making holes. . . . Purely personal opinion, with no theoretical basis
The opening is provided to balance the pressure inside the pipe with the pressure in the valve chamber, thereby reducing the torque required to open it
5# liushaoliang disagrees; pressure balance can be achieved entirely using a communicating pipe + valves. This will not cause internal leakage
There must be holes in the heartpiece… to prevent residual hydrogen peroxide from decomposing when the ball valve is closed, which could lead to an increase in pressure
It needs to be drilled; you can do it yourself if you want. Save some money now, and then deal with the complaints later.
In a hydrogen peroxide medium, it is principleually necessary to drill holes in the valve ball; the floating ball has holes drilled in the upstream valve ball, while the fixed ball has holes drilled in the downstream valve ball. However, if the hydrogen peroxide concentration is low, since hydrogen peroxide hardly decomposes, even if decomposition does occur the pressure increase is not significant and no harm is caused, so drilling may not be necessary. For reference only.
If the ball valve needs to be drilled. Then, the gate valve on that pipeline also needs to have holes drilled in it upstream. The reason is the same