PIPE-COUPLING METHODS FOR LIQUID DISTRIBUTION SYSTEMS IN POLAR CAMPS

摘要

The construction of piping systems in polar regions for transporting freezable liquids such as water and sewage is particularly difficult because of low ambient temperatures, short construction season, and the need for insulation and heat tracing. A study of liquid distribution systems for polar camps is being made in an effort to improve system designs, construction procedures, and techniques. As part of this study, investigations were made of different couplings and fittings, including tests at low temperatures, to determine the most suitable method for joining pipes of various materials. Important points considered in evaluating the different couplings were tools and skill required, exterior configuration of the fitting as it related to subsequent application of insulation, and ease of assembly at temperatures to -30F. None of the coupling methods evaluated were ideally suited for polar camp liquid distribution systems; however, specific couplings and fittings are suggested for use with the different pipe materials. (Author)