Drilling valves? ? ? ? ? ?
Thread Content
This post was last edited by Qi Lili on 2011-3-17 at 11:24. I would like to ask everyone: when our designers were working on the design process, they mentioned that for the connection valves of the water coolers, holes need to be drilled in the valve bodies to prevent freezing. I really don’t understand this. Has anyone heard of such a practice? Do you know the principle behind it? ? Please give me your guidance. . .
No way, why drill holes in the valve body? It will leak then. Is it a jacketed valve? The jacket is filled with a thermal insulation medium
It shouldn’t be drilling; it should be installing a pre-installed drainage valve instead
We do valve drilling quite often. . . But I’m not sure what the purpose of your drilling is; it wasn’t explained very clearly
Reply to 5# weiiew3721: What is the purpose of drilling in your case? Thank you
Reply to 2# arita: It seems to be a regular stop valve; I’m sorry, but I don’t have specific details on it. What do you mean by a jacketed valve? Does a jacketed valve require drilling holes in the outer jacket? ? Thank you
Reply to 3# diwu0205: Could you explain in detail what a drain valve is? Is it a drainage device installed on the valve body itself? ? I translated it from English; you can take a look at the English version: “Valve to be drilled with 12 mm for winterisation.” Thank you. .
2.9.9 Warm pump and anti-condensation bypass Pumps in the following situations shall be equipped with a warm pump and an anti-condensation bypass, as shown in Figure 2.9(e). a) Transport temperature exceeds 200℃ ； b) The temperature may be below the pour point or freezing point of the material ； The anticoagulation bypass should be insulated using steam tracing or electric tracing. c) This bypass can be replaced by drilling holes in the check valve disc. From Lanzhou Design Institute of Sinopec Group
Reply to 6# Qi Lili: Weld another valve to make it a combined valve. .
Holes are drilled in the valve body to allow steam to flow through it for insulation
Reply to 9# weiiew3721: Oh, I think ours isn’t like that. . Thank you