Chemical Resistance
PVC and CPVC pipe are inert to attack by strong acids, alkalis, salt solutions, alcohols, and many other chemicals. They are dependable on corrosive applications and impart no tastes or odours to materials carried in them. They do not react with materials carried, nor act as a catalyst. All possibility of contamination, or chemical process changes, and all danger of clouding, slugging, or discolouration are eliminated.
Strength
PVC and CPVC pipe are highly resilient, tough and durable products that have high tensile and high impact strength. They will withstand surprisingly high pressure for long periods. Fire Resistance PVC and CPVC pipe products are self extinguishing and will not support combustion. They have an ASTM E-84 flame spread rate of 25 or less.
Internal Corrosion Resistance
PVC and CPVC pipe resist chemical attack by most acids, alkalis, salts, and organic media such as alcohols and aliphatic hydrocarbons, within certain limits of temperature and pressure. They provide the needed chemical resistance, while eliminating the disadvantages of special metals, lined piping, glass, wood, ceramics, or other special corrosion-resisting materials, which formerly had to be used.
External Corrosion Resistance
Industrial fumes, humidity, saltwater, weather, atmospheric, or underground conditions, regard- less of type of soil or moisture encountered, can- not harm rigid PVC and CPVC plastic pipe. Scratches or surface abrasions do not provide points which corrosive elements can attack. Immunity to Galvanic or Electrolytic Attack PVC and CPVC pipe are inherently immune to galvanic or electrolytic action. They can be used underground, underwater, in the presence of metals, and can also be connected to metals.
Freedom from Toxicity, Odours, Tastes PVC and CPVC piping are non-toxic, odourless, and tasteless. They have been listed by the National Sanitation Foundation for use with potable water.
Corrosion Free
With many other pipe materials, slight corrosion may occur. The corroded particles can contaminate the piped fluid, complicating further processing, or causing bad taste, odours, or discolouration. This is particularly undesirable when the piped fluid is for domestic consumption. With PVC and CPVC, there are no corrosive byproducts, therefore, no contamination of the piped fluid.
Low Friction Loss
The smooth interior surfaces of PVC and CPVC pipe, compared to metal and other piping mate- rials, assure low friction loss and high flow rates. Additionally, since PVC and CPVC pipe will not rust, pit, scale, or corrode, the high flow rates will be maintained for the life of the piping system.
Low Thermal Conductivity
PVC and CPVC pipe have a much lower thermal conductivity factor than metal pipe. Therefore, fluids being piped maintain a more constant temperature. In most cases, pipe insulation is not required.
Easy Installation and Low Installation Cost
PVC and CPVC pipe are lightweight, convenient to handle, relatively fl exible, and easy to install. For example, it is approximately 1/5 to 1/6 for the weight of metal. They have smooth, seamless interior walls. No special tools are required for cutting. They can be installed using solvent ce- menting, threading, flanging techniques. These features lead to lower installed costs than conventional metal piping.
Maintenance Free
Once a PVC or CPVC piping system is properly selected, designed, and installed, it is virtually maintenance free. It will not rust, scale, pit, cor- rode, or promote build-up on the interior. There- fore, years of trouble-free service can be expected when using Sanking PVC and CPVC pipe.
