I have had such a system. The liquid propane spray droplets dropped out of the hot gas, and evaporated on the bottom of the pipe resulting in a half-moon layer of ice on the outside of th pipe. Then the surge problem went away, the line warmed up, and a large length of ice fell about 6 metres...
Dessicant disintegration and corrosion both point to liquid water contacting the drier. I assume that you have an aftercooler on the compressor; investigate if the autodrain is plugged (indeed, check if you have one!). It should be discharging an appreciable amount of liquid water, as about 6/7...
As you are at NEL, you obviously have access to one of the best sets of data on flow elements. Traditionally, flow nozzles (BS1042) were used as being resistant to water droplet damage compared to orifice plates.
McCrometer V-cone elements now offer good functionality on wet steam and have been...
And if you want to get scared, try reading the recent UK Institute of Petroleum (now Energy Institute)guidelines at
http://www.portlandpress.com/pcs/books/prod_det.cfm?product=0852932790
which discuss jetfire, etc.
"Mitigation of the impact of severe fires on hydrocarbon, petrochemical and...
Further to comment on bypasses - on standby pump systems it can be highly desirable to have the standby pump at operating temperature (eg. hotoil heating circuits). A small air-operated valve around the checkvalve is a handy solution.
Similarly, on cryogenic systems it can be VERY desirable to...
Check in Perry for 'hydraulic diameter', which is 4 times the channel cross-sectional area divided by channel perimeter. Note that this is for turbulent flow calc. only.
On-off or proportional control?
At 150C, you are within the reasonable range for Viton or Kalrez seals, at least for an on-off actuator. Proportional control is touchier as you cant afford any stiction or hysteresis, and even an old-fashioned pneumatic positioner is likely to worry at 150C. But...
You can purchase a manometer oil from mffr. of manometers - (eg Dwyer) 0.71 SG from memory. Anything lower than this is likely to be volatile. Using an inclined tube manometer AND oil is the usual path if you aren't into precision electronics. They do require a level bubble to set up, though
Just bear in mind when you use it, that the isocyanate vapor reacts with water - especially in your lungs. Wear an air-fed mask. I am a bit sensitive about this, as I made the stuff 50 years ago and lost 30% lung function in doing so.
If you are trying to fill 1m3, the rigid foam will be density...
Vaisala (http://vaisala.com) have a dewpoint transmitter rated for 350deg C operation which may meet your requirement - quoted 90% response at 135C, wet to dry 50 sec, dry to wet 10 sec. (I havent used it, but happen to have the catalog on my desk)
DONT try to burn it off. The fumes are quite toxic.
It shouldn't be hard; the stuff is mainly CO2 and freon gas; the outer surface has probably been painted with a polymer sealant. Hit that with a bowsaw or even lengthwise with a boxcutter and the rest should come clear, even if it was foamed in...
Try a websearch on 'lacquering' as an alternative. The layer of material on the inside comes from oxidation of unsaturated compounds in the oils (think old-fashioned linseed-oil based paint, which cured in air).
There is a common requirement in boiler codes to have an indication at the boiler floor that a PSV has lifted, and this is done by having a drain piped into a tundish from the PSV discharge - rude, crude and mechanical but it used to work when every boiler had a boiler attendant. It was also...
Laser light is commonly monochromatic, so passing it into an absorbing medium will give nothing. 'Colorless light' - do you mean an infrared frequency? I suggest that you try the inquiry service on http://www.photonics.com.
