PVC vs. PE Pipe: Similarities and Differences

PVC resin manufacturers in India are spread through the country. Polyvinyl chloride (PVC) and polyethylene (PE) are both thermoplastic polymers that are used to make PVC and PE pipes (PE). Compared to conventional pipe materials like concrete and steel, both of these materials can be used for pipe extrusion with excellent results.

Both PE and PVC pipes are frequently used to move heavy loads of liquid at high speeds (water, fertilizer, hazardous chemicals). Compared to conventional concrete or metal pipes, plastic pipes can sustain this velocity with less drag and turbulence, offering higher resistance to scale and accumulation. Additionally, PE and PVC pipes maintain pipeline system temperatures more consistently and are resistant to a variety of chemicals, harsh climatic conditions, and aggressive soil fungus. Both PE and PVC pipes are cost-effective pipeline solutions for all applications and may be utilized for extended periods of time.

PVC pipe uses

Because of the abrasiveness of the material when it is still in its raw form, PVC is a lightweight, affordable, stiff thermoplastic that has to be extruded using a twin screw pipe extruder. PVC pipes are less susceptible to heat elongation (expansion) than PE pipes. Therefore, a PVC pipe system exposed to changing internal or external temperatures is better guarded against potential harm brought on by pipes that may contract and expand. PVC starts to deform under heat at temperatures exceeding 60°C (140°F), while prolonged exposure to cold can make the pipe brittle when it freezes. Therefore, PVC is not appropriate for uses like kitchen drains or installations that are exposed to bad weather.

Because of their chemical makeup, some PVC kinds are really unsuitable for use with potable water, while other types are. Sewers, water mains, drain/waste/vent, and irrigation are examples of common uses. If PVC is used above ground, it should contain stabilizers and UV inhibitors and may need to be painted with water-based latex paint because PVC is susceptible to UV rays.

PVC pipe must be transported in rigid segments since it cannot be coiled due to its stiffness. This stiffness raises the cost of transportation by limiting the amount of pipe that can be stored and moved at once. PVC pipe installation is labor-intensive and increases the danger of leaks and joint failures at each connection point since fittings are required at each rigid piece.

Due to its stiffness, PVC can be challenging to install on unlevel ground, necessitating ground leveling to get good results. If a gradient is necessary, PVC once put will keep grade effectively. Due to its stiffness, PVC only needs sporadic supports when hanging, unlike flexible PE pipe.

PE pipe applications

PE pipe is produced as a single, continuous piece that may be cut to length and is flexible. PE pipe may be stored and carried in coils or in pieces, and it is flexible and lightweight (in comparison to conventional materials like concrete and steel). Because flexible PE tubing easily handles slopes, valleys, and obstructions, uneven terrain is also less of an issue.

No Need for Pipe Fittings or Connectors

PE may be fused together to form a continuous, almost leak-free system in place of frequent connections, leading to a more effective and cost-effective installation. Even though fusing needs specialized equipment, employing fewer connections and fittings decreases friction and water velocity drop, which can lead to pressure loss throughout the system. This implies that running pumps requires less energy.

PE Pipe is Flexible

Smaller entrance trenches are possible because of their flexibility, which lessens the difficulties for the neighborhood during installation and maintenance. PE is perfect for trenchless installation techniques because of these qualities.

Durability & Long Performance Life

PE also exhibits outstanding resistance to both slow crack growth (SCG) and rapid crack propagation (RCP), and it keeps these qualities even at extremely low temperatures. The advantages of PE’s technical properties, such as a leak, fracture, burst, tear, puncture, and chemical resistance, make it suitable for a wide range of applications.

PE has great toughness, longevity, and durability; tests indicate a life expectancy of over 100 years. Thus, systems may anticipate simple handling and long performance life.

PVC pipe is the best choice as a low-cost material for pressured and/or suspended systems that are not subject to significant temperature variations. For projects requiring drinking water, exposure to harsh temperatures, or where ungraded or above-ground installation is necessary, PE pipe is the best option.

Technology for 3-Layer Pipes

Manufacturers that wish to profit from the affordability, adaptability, and environmental friendliness of 3-layer pipe technology can choose between PVC and PE. An exclusive 3-layer die head is used to extrude an inner and outer layer separated by a core made of a different material to create 3-layer pipes. By employing a less expensive core material, often regrind, three-layer pipes can match the technical specifications of a high-quality polymer single-layer pipe without spending as much money. By allowing for the option of layer materials to address environmental and fluid management concerns, three-layer pipes also offer additional adaptability.

PE & PVC Pipe Extrusion Machines

The staff at DRTS can assist you in selecting the finest alternatives for your market and business if you are putting up a new production line or remodeling an existing one to manufacture PVC or PE pipes. To understand more about our pipe manufacturing options, request a free consultation from a professional.

In conclusion

Numerous goods that people use every day are made of PVC, as are many more that are utilized in less-common but nonetheless crucial applications including building, electronics, healthcare, and other industries. Because of its inexpensive cost and advantageous physical and mechanical qualities, PVC is employed in several applications. It is effectively produced into a variety of stiff and flexible goods. PVC is naturally flame resistant. Alternative materials and procedures may be accessible to PVC materials, although frequently they are less effective or have higher prices.