Division 22 23 Ebook Page 41 Pipe & Mechanical Insulation Brochure

11 Thickness to prevent surface condensation Fluid temperature 35F Pipe size, NPS, in. Ambient temperature F Relative humidity % 1 1- 2 4 6 8 10 12 80 70 1 1 80 1 1 1- 1- 90 1- 1- 2 2 2- 2- 2- 90 70 1 1 80 1 1 1- 1- 1- 1- 90 2 2- 3 3 3 3- Fluid temperature 45F Pipe size, NPS, in. Ambient temperature F Relative humidity % 1 1- 2 4 6 8 10 12 80 70 1 1 80 1 1 90 1 1- 1- 1- 1- 2 2 2 90 70 1 1 80 1 1 90 1- 2 2 2 2- 2- 2- 2- 3 Fluid temperature 55F Pipe size, NPS, in. Ambient temperature F Relative humidity % 1 1- 2 4 6 8 10 12 80 70 1 1 80 1 1 90 1 1 1- 1- 1- 1- 1- 90 70 1 1 80 1 1 90 1- 1- 1- 1- 2 2 2 VaporWick pipe insulation does not prevent surface condensation. Sufficient thickness must be selected to minimize condensation on the outer surface. All thicknesses are in inches rounded up to the nearest half inch. Recommendations were developed using the NAIMA 3E Plus computer program, assuming wind speed of 0 mph and outer jacket emittance of 0.9. AVERAGE 53% RECYCLED CONTENT 31% PRE-CONSUMER 22% POST-CONSUMER VaporWick Pipe Insulation

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