Push fit pipe fittings are widely used in plumbing systems due to their ease of installation, speed, and cost effectiveness. These types of fittings are typically made from various types of plastics, such as polyethylene (PE) or polypropylene (PP), and are designed to connect pipes without the use of special tools or adhesives. However, when it comes to underground applications, push fit pipe fittings may not be the best option. In this article, we will explore the various factors that need to be considered before using push fit pipe fittings in underground applications.
The first factor that needs to be considered is the type of material that the push fit pipe fittings are made from. In general, push fit pipe fittings made from plastics such as PE or PP are not suitable for underground applications because they are not resistant to ultraviolet (UV) radiation. UV radiation from sunlight can cause these materials to become brittle and crack over time, which can lead to leaks or failures in the system. Therefore, if push fit pipe fittings are to be used in underground applications, they should be made from materials that are UV resistant, such as PVC, ABS, or PEX.
Another important factor to consider is the pressure requirements of the system. Push fit pipe fittings are typically used in low pressure applications, such as residential plumbing systems. However, if the system in question requires higher pressures, push fit pipe fittings may not be suitable. In particular, underground applications often require higher pressures due to the weight of soil and other external factors. In such cases, it may be necessary to use threaded or welded pipe fittings, which are designed to withstand higher pressures.
The soil conditions in which the underground piping system will be installed are also a critical factor to consider. If the soil is particularly hard or rocky, it may be difficult to properly seat push fit pipe fittings. In such cases, it may be necessary to use threaded or welded pipe fittings that can be securely fastened to the pipe. Additionally, if the soil is prone to settling or shifting, the piping system may be at risk of damage or failure. In such cases, it is important to choose a piping system that can withstand the stresses and strains of the soil conditions.
In addition to soil conditions, environmental factors such as temperature, humidity, and chemical exposure can also impact the suitability of push fit pipe fittings for underground applications. For example, if the underground piping system is located in an area with high humidity, the fittings may be at risk of corrosion or degradation over time. Similarly, if the system is exposed to chemicals or other harsh substances, the fittings may be damaged or weakened. In such cases, it may be necessary to choose a piping system that is specifically designed to withstand the environmental conditions of the installation site.
Finally, the installation requirements of the piping system should also be considered when determining whether push fit pipe fittings are suitable for underground applications. In general, push fit pipe fittings are easier and quicker to install than threaded or welded fittings, as they do not require any special tools or adhesives. However, if the installation site is particularly challenging or difficult to access, threaded or welded fittings may be a better option. Additionally, if the piping system is located in an area where regular maintenance or repairs may be required, it may be necessary to use fittings that can be easily disconnected and reconnected, such as threaded fittings.
Conclusion
In summary, while push fit pipe fittings are a popular choice for plumbing systems due to their ease of installation and cost effectiveness, they may not be suitable for underground applications. Before choosing push fit pipe fittings for an underground piping system, it is important to consider factors such as material selection, pressure requirements, soil conditions, environmental
factors, and installation requirements. By carefully evaluating these factors, it is possible to determine whether push fit pipe fittings are the best choice for a particular installation.
In addition to the factors discussed above, it is also important to ensure that any push fit pipe fittings used in underground applications meet the relevant industry standards and regulations. In the United States, for example, push fit pipe fittings must comply with the standards set by the National Sanitation Foundation (NSF) and the American Society for Testing and Materials (ASTM). It is important to ensure that any fittings used in the installation meet these standards to ensure their safety and reliability.
Another consideration when using push fit pipe fittings in underground applications is the potential for damage during installation. While push fit fittings are designed to be easy to install, they can be damaged if they are not properly seated or if excessive force is applied during installation. This can lead to leaks or failures in the system. Therefore, it is important to follow the manufacturer's installation instructions carefully and to ensure that the fittings are properly seated and secured.
In some cases, it may be necessary to use a combination of push fit and threaded or welded pipe fittings in an underground piping system. For example, push fit fittings may be used in areas where access is limited or where frequent maintenance is required, while threaded or welded fittings may be used in areas where higher pressures or more secure connections are needed. By carefully evaluating the installation requirements and selecting the appropriate fittings for each section of the piping system, it is possible to ensure a safe and reliable installation.
In conclusion, push fit pipe fittings can be used in underground applications, but several factors must be considered before choosing this type of fitting. Material selection, pressure requirements, soil conditions, environmental factors, installation requirements, and compliance with industry standards must all be taken into account to ensure a safe and reliable installation. If push fit pipe fittings are used, it is important to follow the manufacturer's installation instructions carefully and to ensure that the fittings are properly seated and secured to prevent leaks or failures in the system.
