- Energy- and resource-saving technology for performing hydraulic tests on the pipes of large central heating systems. Pleshivtsev, V. G.; Pulner, I. P.; Pak, Yu. A.; Livanova, O. V.; Filippov, G. A.; Chevskaya, O. N. // Metallurgist;Sep2009, Vol. 53 Issue 9/10, p551
A new energy-saving, low-waste technology is proposed for conducting hydraulic tests. The technology was developed with consideration of the processes that take place in the metal of piping that has undergone long use. The method that has been developed to choose the test pressure for piping...
- 25 BIG IDEAS. Sofge, Erik // Popular Mechanics;Jul2009, Vol. 186 Issue 7, p60
The article discusses solutions from various machines for problems ranging from drought to traffic snarls. The Green Energy Machine, the dumpster-size cargo container can heat and power 200,000 square feet of space on a daily diet of 3 tons of garbage. Nanotube arrays can increase the surface...
- Big corrosion in hydronics tied to O2 diffusion. Mader, Robert P. // Contractor Magazine;Jan1994, Vol. 41 Issue 1, p1
Discusses the role of rubber tubings and hoses in oxygen diffusion corrosion in hydronic radiant systems. Need for oxygen barrier tubing to prevent hydronic corrosion; Sludged systems as a reaction between hard water and dipotassium phosphate used as a corrosion inhibitor; Other possible causes...
- Oxygen diffusion formula shows why problem is great. Fiedrich, Joe // Contractor Magazine;Jan1994, Vol. 41 Issue 1, p42
Reports on a strong evidence that oxygen diffusion through the wall of permeable plastic tubing in closed radiant floor heating systems can cause serious problems in the system. Discovery of corrosion and subsequent sludging problems in closed systems; Factors affecting the degree of oxygen...
- Tape wrap system prevents pipe corrosion. // WaterWorld;May97, Vol. 13 Issue 5, p24
Describes how the city of Los Angeles, California, has benefitted by using Carboline Co.'s Denso Tape to protect piping in water regulator stations from corrosion. Highlights of the installation process; Product features and capabilities.
- Installing ductile iron pipe with polyethylene encasement. Brown, Earl J. // WaterWorld;Nov/Dec98, Vol. 14 Issue 10, p12
Cites ways to install polyethylene encasement as a corrosion control method for ductile iron pipe, according to the ANSI/AWWA C105/A21.5 Standard. Utilization of polyethylene tubes; Use of polyethylene sheets.
- DWV PIPE & FITTINGS. Arnold, Don // Supply House Times;Aug2003, Vol. 46 Issue 6, p110
Discusses the common components in drainage piping. Specifications of primary drainage; Usage of waste piping; Application of corrosion resistant drainage.
- DIPRA studies examine polyethylene encasement. // WaterWorld;Nov/Dec99, Vol. 15 Issue 10, p18
Reports on the investigation of the Ductile Iron Pipe Research Association (DIPRA) of polyethylene-encased pipes in an operating system. Inspection of iron water mains; Soil surveys to assess corrosion protection; Effectiveness of polyethylene encasement in protecting cast and ductile iron pipes.
- Copper corrosion control in the Netherlands. P. G.G. Slaats; H. Brink; T. J.J. van der Hoven // Water Science & Technology: Water Supply;2001, Vol. 1 Issue 3, p75
Copper is the most commonly used material for pipes in domestic installations in the Netherlands. Depending on the composition of the water the copper pipes can add a significant amount of copper to drinking water. In the new European Drinking Water Directive (98/83/EC) the parametric value for...