PPR for use in drinking water systems

Water services in buildings are complex, requiring both experience and careful material selection. The goal is to design and produce a piping system for hot and cold water supply that is easy to install and have a long, trouble free service life. PP-R (Polypropylene Random Copolymer) was developed over thirty years ago, and, today, is widely used in hot and cold water systems around the world. Its comprehensive technical performance balanced against its low cost is the main reason for its success. PP-R is suitable for all sanitary and potable water applications. Polypropylene random copolymers are thermoplastic resins produced through the polymerization of propylene, with ethylene links introduced in the polymer chain. The resins possess a broad range of characteristics and are used in a wide range of applications. Considerable growth in the use of PP-R pipe systems in new buildings has resulted in a surging demand for PPR material in expanding markets across Eastern Europe, North Africa, and Asia.  PP-R offers significant benefits over traditional systems… Reduced installation time – Compared with traditional systems, PP-R can result in a reduction in installation time of at least 30%. Resistance to electrolysis – The high resistivity of the piping system (10 Ohm cm.) guarantees a very low electrical conductivity. The risk of PP-R pipe or fittings piercing due to stray currents is minimal. Most chemical substances, which might be present in water or concrete, do not attack PP-R.  Pipes and fitting pressure losses – The inner surface of pipes and fittings have a very low frictional resistance, in comparison to traditional systems, thus making it possible to reduce the distribution...

Alternatives for Drainage Systems

When it comes to finding a DWV (Drain, Waste and Vent) drainage system for use in pharmaceutical, biotech, and chemical research laboratories that can handle the various chemicals and solvents that get flushed down the sink, options can be limited. Both glass and stainless steel are popular due to their high chemical resistance. Both, of course, have their limitations as well, being very low impact resistance and high cost, respectively. Polypropylene has excellent chemical and physical properties to make it ideal for handling corrosive chemical waste solutions present in laboratory and industrial DWV applications.  It is suitable for use in chemical and industrial plants as well as in hospital and university laboratories where mixtures of acids, bases and solvents are drained. Commercial kitchens can also benefit as it can handle temperatures up to 100°C and has a very high impact strength. It will not rust, pit, scale, corrode or be affected by electrolysis, and, in above ground installations, the pigmentation protects the system from sunlight. Polypropylene is resistant to the corrosive action of alkalis, alcohols, acids, solvents and salt solutions. Dilute mineral acids and aqueous solutions of acid salts, which are so destructive to most metals, have no affect on Polypropylene. In general, it is attacked only by strong oxidizing acids and weakened by certain organic solvents and chlorinated hydrocarbons. Polypropylene is a material that is known to have wide acceptance as a superior thermoplastic material for handling harsh, corrosive fluids. With mechanical joints for easy under sink cleanout, or, electrofusion couplings for any overhead applications, installation time is much quicker than welding stainless steel. Polypropylene certainly worth considering...