Joining Methods For PVC Pipes And Fittings
Posted: Dec 23, 2013
Polyvinyl Chloride (PVC) Pipes and fittings are popular all over the world for their durability, ease of joining and installation, low costs and corrosion resistance. There are many joining methods for PVC piping systems that have stood against time and tests proving their integrity as reliable piping systems. Solvent cementing, threading, flanging are some of the common types of joining methods used for the PVC Pipes Fittings. The following section elaborates on a few of them.
Joining Methods For PVC Pipes & Fittings
- Solvent Cementing – It is the most preferred joining system for the PVC Pipes and fittings. It is an extremely cost effective method of joining and requires no special training on the part of the installer or any costly installation tools. It does not require any open flames, hot plates or torches which lowers the safety risks in the installation process. In most of the cases, it does not even require electricity.
- Flanging - This is a type of joining system in which the two connecting parts have flanges by which they are joined together. Flanging can, however, be used for other piping systems too. The attached flanged hubs should be properly cemented to the Pipes in order to achieve successful joints for PVC systems. It is very useful in joining even dissimilar piping materials. This can be used to prefabricate a system for field installation or to disassemble sections for maintenance and checks. It can also fix the leaks easily.
- Threading – This method of joining is used only in a few special cases where it is required. It also offers advantages of fixing the leaks quickly and easily. It can disassemble the system or prefabricate a system for inspection and maintenance. Clean and sharp threading dies or Teflon tapes should be used for joining.
Some other joining methods apart from the ones mentioned above are Gasketed-Bell and Spigot, heat fusion and transition joints. Gasketed-Bell and Spigot is a popular joining method for the underground PVC piping systems. Transition joints are used for coupling iron Pipes to the PVC ones. PVC can also be heat fused in environments with controlled temperatures and pressures. Heat fusion joining system is mostly used in underground and slip lining applications.
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