fire service pipe insulation
fire service pipe insulation
(OP)
Need to insulate an exposed portion of an 8" fire service that typically does not have flow in a northern climate. What is a suitable type of insulation and to what R value?
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fire service pipe insulation
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RE: fire service pipe insulation
OK, what you need is insulation and some heat tracing.
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: fire service pipe insulation
Alum Roll Jacketing (0.16 thickness),
Bands: 1/2" x 0.015 SS,
and furnish and install a self-regulating heating cable suitable for contact with the piping, Raychem BTV-CT or equal with indicating light
RE: fire service pipe insulation
...and/or depending on surrounding conditons (nordic climate can be anything from arctic with permafrost up to some degrees below frezzing point some days a year) dig the pipeline down underground at frost-free depth.
RE: fire service pipe insulation
RE: fire service pipe insulation
The entire line is kept drained and filled with compressed air at about 20 psi. A special valve senses the air pressure so if there is demand (fire) the valve will allow the water to enter the pipe. After a use, the lined is drained again and filled with air. A small air compressor is needed to maintain steady air pressure.
There are also antifreeze solutions that can be used, needs to be a potable type, and a RP backflow device installed.
Hydrae