PP Chemical Resistant Centrifugal Fans • PP Chemical Resistant Pipes • Plumbing System

Chemical resistant piping systems are designed to transmit chemical waste to dilution tank or neutralization basin before entering sanitary waste system. The acidity and corrosiveness of the chemical in the waste tank may harm the piping, this is the reason why the material used is very important. The common materials used for chemical piping system are glass, CPVC, polypropylene, and PVDF. Chemical resistant piping system can be found in school laboratories, manufacturing plants, research facilities, and hospitals.

KL Lab had been using polypropylene to produce chemical resistant piping. Polypropylene (PP) is a light weight piping material with very good chemical resistance. When polypropylene is applied in piping system, heat and retardant stabilizers are added to PP to retard flammability and thermal aging. Unlike PVC, PP is also used in many corrosive and high temperature applications. In the market, the PP pipe is available in 20' standard lengths, with the size ranging from ½" to 40". PP is made in schedule 80 and schedule 40 to support different working pressure. It is applied in several usages, such as chemical drainage systems, industrial process, high purity water, hot and cold water distribution, and gravity sewer systems.

Sometimes, the prices of raw material are not stable. Polypropylene pipe have stable market price, and it is rarely stolen from jobsite. Also, polypropylene use heat fusion welding process with lighter weight than metal which saved labour cost. To install polypropylene pipe, it can be done by simply drill it and heat fuse the fusion outlet fitting at demanded position. The fitting is cheap on average, which make the overall cost is competitive and much lower than other piping systems.

Heat fusion welding is well known for it safe and flameless technology that used worldwide for almost four decades. Heat fusion is a reliable method than other form such as gluing and chemical bonding. It take a short time to complete the connection, and it can use immediately without waiting overnight after bonding. It is more cost effective than other bonding form because no other material insert into the system. The pipe and fitting are cool together with minor pressure. After cooling, the polypropylene of two different pieces mixes together. The bond formed is stronger than either the pipe or the fitting alone.

Compared with other piping system materials, polypropylene is more durable with long life span. Polypropylene is resistance to chemical and corrosive, abrasion resistance, joint integrity, and optimum flow characteristics. Also, it has low moisture absorption which easy to maintain and clean. It has good flexibility which can easily mold into different shapes. It is also suitable to produce it with colour as the colour will stay bright and beautiful.