High Temperature Sprinkler Applications
High Temperature Sprinkler Applications
(OP)
Has anyone ever installed a wet pendent ultra high temperature head (ie ~500 degree head) inside an insulated roaster or some other type of application which operates at about 400 degrees?
The piping itself is only in minimal thermal contact with the 400 degree operating temperature. Almost the entirety of the pipe system is exposed above the roaster at typical room temperatures.
Does anyone see any problem with this type of installation? Do we have to worry about the water in the pipe boiling?
Please let me know of any questions.
Thanks in advance.





RE: High Temperature Sprinkler Applications
RE: High Temperature Sprinkler Applications
RE: High Temperature Sprinkler Applications
Travis Mack
MFP Design, LLC
www.mfpdesign.com
RE: High Temperature Sprinkler Applications
Or you just want to to it??
How long is the conyor/. Oven????
Does not sound like it is required!!!!
RE: High Temperature Sprinkler Applications
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RE: High Temperature Sprinkler Applications
cdafd:
The conveyor/oven is approx. 20' long and 8' wide.
Regarding the potential for the water to boil, would the water as it warmed not circulate and rise in the pipe and draw down cooler water from above, creating a warm-cool cycle? As the warm water rises the heat will dissipate via convection and mixing and conduction via the cooler steel pipe.
Remember that only the length of pipe needed to install a pendent head into the top of the unit is directly exposed to the 400 degree temperatures. The rest of a large network of pipes is at room temperature.
RE: High Temperature Sprinkler Applications
Would it be possible to use a dry pendant?
RE: High Temperature Sprinkler Applications
Three issues where discuss intensely.
1) Type of system
(we chose a dry system like others in the posting to avoid freezing and boiling temperatures)
2) exposed or concealed heads to avoid debris in the fusible link. (we chose concealed since the use of plastic bags will not be feasible and also to avoid accidental discharge cause by flying debris)
3) type of piping
(we chose galvanized since all piping is exposed to outside natural elements)
RE: High Temperature Sprinkler Applications
With the pipe filled with water at 100 psi, would steam be present?
I'm thinking about going with a 2" deluge valve to open heads and installing heat detectors in the roaster.
RE: High Temperature Sprinkler Applications
RE: High Temperature Sprinkler Applications
FYI, nothing in the International Mechanical Code or International Fire Code would require active fire protection for this. Since the nuts are dry roasted, the process would not produce grease-laden vapors, which is the dominant criteria for an automatic fire-extinguishing system.
RE: High Temperature Sprinkler Applications
Real world knowledge doesn't fall out of the sky on a parachute, but rather is gained in small increments during moments of panic or curiosity.