Questions regarding hydrostatic testing
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This post was last edited by 799554747 on 2019-5-24 at 15:54. As shown in the diagram, tube A is higher than tube B; a vent valve is installed only on tube A. In this case, can the air inside tube B be discharged when pressurizing?
It’s definitely not possible to do that; the B tube also has high points, and an exhaust valve needs to be installed as well
Since there are 6 more pipes similar to Pipe B, and no venting points have been designed at the top, this is a high-pressure pipe, so it’s not appropriate to create holes in it casually
The other six pipelines all lead out from the surface main pipe, rising vertically, and then a elbow connects directly to the flange of the equipment port
The equipment is not yet allowed to participate in hydrostatic testing; pore-free lens gaskets are used at the connections between the pipes and the equipment
Each one is just like in this diagram – it bends over and connects directly to the device. How does one achieve venting?
Do you mean I should loosen the bolts at the place where the top is connected to the device’s flange, leaving a little gap, and then tighten the bolts once water starts coming up from below? Would that work? In this way, there might be a little air inside the tube. Is a little air a problem?
Do you mean I should loosen the bolts at the place where the top is connected to the device’s flange, leaving a little gap, and then tighten the bolts once water starts coming up from below? Would that work? In this way, there might be a little air inside the tube. Is a little air a problem?
It is possible to consider using a blind flange as a barrier at the connection point to the equipment, but since exhaust is required, the fastening of the blind flange to the pipe should be carried out after exhaust is completed and water flow resumes