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Is there anybody know the meaning and purpose of "blow down"? thanks,

Good Day Everyone, Do you the purposes of vent on inlet headbox and drain on outlet headbox of air cooler? Thank you very much!

good day every body, this might be a stupid question: how to decide to use traveling crane or monorail for lifting? it seems traveling crane is much better than monorail as long as space is enough to put rails. thanks for your reply!

good day, An orifice upstream straight pipe length requires 5D, I put a PI in upstream 4D. Is it ok? thanks.

In piping model, a spectacle which is on a removable spool, is connected to an tube&shell heat exchanger nozzle directly. My question is: is this configuration wrong? during maintenance, the removable spool including this spectacle is removed, how to prevent fluid inside piping come out...

for a heat exchanger with tube bundle wight below 10 tonnes, do we have to locate it on the edge of unit, channel side facing access road to allow extractor to pull out the tube bundle? or we put a light heat exchanger not on the edge of unit, but the sides road are accessible for cranes to...

good day guys, do you know the methods and tools how to lift bigger control valve on site?

I put a 3x2 PSV's outlet center line elevation 1.45m. but clients said it is too high, they want to watch the PSV operator. so I have to drop PSV 200mm lower. Does snybody know the reason? I thought 1.45m is the best elevation, because PSV can be removed easily.thanks,

how to maintain and replace sw check valve ?