PVC drainage pipe can come in a variety of sizes. These pipes are often cut to size on the building site, and are easy to store and transport. The most common sizes are 110mm and 160mm. Using the right size will ensure that your drainage system is functional, and will prevent water from entering your home.
Schedule 40
PVC pipe is available in two different schedules, schedule 40 and schedule 80. Both sizes have the same outside diameter, but schedule 80 has thicker walls. The reason for this is that thicker tubes offer more strength and can withstand greater pressures and stresses. Both schedules can be installed in the same way, but they are meant for different applications.
Schedule 40 PVC pipe is the best choice for drainage applications. This pipe is capable of impressive pressures and is relatively cheaper than its counterpart, schedule 80. However, industrial-grade applications will likely require higher pressure and stress. In these cases, you should purchase a pipe with a thicker wall.
Schedule 60
There are two main PVC pipe schedules: schedule 40 and schedule 60. Both are suitable for drainage around buildings and are widely available at your local hardware store. The difference between them is the degree of pressure they can withstand. The former is better suited to lower pressures while the latter is suitable for higher ones. Most PVC pipe and fittings carry a specific pressure rating that is indicated in pounds per square inch.
The thickness of water pipe walls depends on its operating pressure and material. Typically, a higher thickness implies a higher initial cost but higher durability and pressure tolerances. Various schedules are available, each denoted by the Standard Dimension Ratio (SDR), which is the ratio of the pipe diameter to its wall thickness. The greater the SDR, the higher the wall thickness.
Schedule 80
PVC pipe is available in two main schedules, the 40 and the 80. The main difference between the two is the wall thickness. Thinner pipes have less material and, therefore, are weaker. On the other hand, the thicker ones have better structural and chemical endurance, more rigidity, and greater strain resistance.
WRAS compliance testing is an important factor to look for in a PVC pipe. During this test, materials are soaked in water and checked for the presence of chemicals. If any chemicals are detected, it means there is a risk of leaching from the plastic into the water supply. Only a few specialised laboratories perform this testing. One of these is the Thames Water Quality Testing Laboratory.
Schedule 90
When looking for PVC pipe for drainage purposes, you should consider the PSI and wall thickness of the PVC. For routine applications, schedule 40 PVC is adequate, but schedule 80 PVC is more expensive and not ideal for home uses. You should also take into account the thickness of the pipe walls if you’re considering it for industrial use.
The main differences between schedule 80 and schedule 90 PVC pipe can be found in their wall thickness. Schedule 40 PVC pipe is most commonly used for drainage around buildings, and can be purchased at your local hardware store. This type of PVC pipe is rigid and can handle low-pressure applications, while schedule 80 is better for higher pressurization. The maximum pressure rating is usually listed on the pipe and fittings.
Schedule 120
When you’re installing drainage pipe, it’s important to choose the right schedule for the job. PVC pipe has different pressure ratings and schedule 120 PVC pipe is the best choice for high-pressure installations. There are some differences between schedule 80 and schedule 120 PVC pipe, but the most important consideration is how much pressure the pipe will endure. For example, schedule 80 is designed for a deeper installation. It’s also thicker, able to withstand more backfill pressure.
There are three standard PVC pipe sizes. These are schedule 40, schedule 80, and schedule 120. Schedule 40 is most commonly used for drainage and above-ground vent lines in homes. Schedule 120 has the thickest wall thickness. The diameters of the different schedules may be similar, but their inside diameters are very different.
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