How to measure the size of pvc pipe?

How to measure the size of pvc pipe?

‌Measuring the size of PVC pipe can be done in a variety of ways, including direct measurement, comparison, and manufacturer identification.

1. Direct measurement method

The direct measurement method is one of the most commonly used methods. You can use tools such as tape measure or vernier caliper to directly measure the diameter and wall thickness of PVC pipes. When measuring, make sure the water pipe is in a horizontal state to ensure the accuracy of the measurement results.

2. Comparison method

If there is no measuring tool, you can use the comparison method. First find a water pipe of known size and compare it with the water pipe to be measured. By observing and comparing, you can roughly determine the size of the water pipe to be measured.

3. Manufacturer identification method

Regular pipe manufacturers will mark their size information on the pipe, such as diameter, wall thickness, etc. By looking at the logo on the pipe, you can understand its size information. But this method is only applicable to pipes produced by regular manufacturers.

Precautions

When choosing measuring tools and methods, you need to pay attention to the following points:

1. Choose the right measuring tool: Choose the right tool according to the parameters to be measured, such as tape measure, vernier caliper or laser diameter gauge, etc.

2. Ensure measurement accuracy: During the measurement process, the accuracy of the tool and the accuracy of the operation must be ensured, especially when using a tape measure or caliper. Taking the average value of multiple measurements can improve the accuracy of the measurement.

3. Reference to national standards: The measurement results should comply with national or international standards. Parameters such as diameter, length, bending radius, etc. should be precisely controlled.

How to measure the size of pvc pipe (2)
How to measure the size of pvc pipe

Application fields of PVC pipes of different sizes

PVC pipes have different size requirements according to different application scenarios.

PVC electrical conduit pipe: Common sizes include 16mm, 20mm, 25mm, 30mm, 40mm, 50mm, 75mm, 90mm, 110mm, etc. These sizes are mainly used for laying electrical lines. Small-sized threading pipes are used for wiring arrangement in homes and offices. They can wear 1 to 10 wires. The larger the size, the more wires can be worn.

PVC Pipes for Water: Common specifications include DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, etc. These specifications of PVC water supply pipes are used in urban water supply, rural drinking water, and other fields, and the wall thickness varies according to the use pressure. The specifications of PVC water supply pipes are selected according to the actual water consumption and pressure requirements. Too small a pipe diameter may lead to insufficient water supply, and too large a pipe diameter will increase the investment cost.

PVC Drainage Pipes: Common specifications include DN40, DN50, DN75, DN90, DN110, DN125, DN160, DN200, DN250, DN315, DN400, DN500, etc. PVC drainage pipes are mainly used for building drainage and municipal drainage, and their wall thickness also varies according to different usage occasions.

The specifications of PVC drainage pipes are selected according to the drainage volume and soil pressure, and they need to have good corrosion resistance and aging resistance to ensure the normal operation of the drainage system.

How to measure the size of pvc pipe (3)
How to measure the size of pvc pipe

PVC pipe sizes

Size Size Diameter Socket Depth Pressure(PN)
mm Inch Tolerance (mm) 6.3 8 10 12.5 16 20 25
DN DN (mm)   W. T. W. T. W. T. W. T. W. T. W. T. W. T.
20 1/2” 0.2   1.6 1.6 1.7 1.8 1.8 2 2.3
25 3/4” 0.2   1.6 1.7 1.7 1.8 2 2.3 2.8
32 1” 0.2   1.7 1.7 1.8 2 2.4 3 3.6
40 1 1/4” 0.2   1.8 1.8 2 2.4 3 3.7 4.5
50 1 1/2” 0.2 75 1.8 2 2.4 3 3.7 4.6 5.6
63 2” 0.3 100 2 2.5 3 3.8 4.7 5.8 7.1
75 2 1/2” 0.3 110 2.3 2.9 3.6 4.5 5.6 6.9 8.4
90 3” 0.3 120 2.8 3.5 4.3 5.4 6.7 8.2 10.1
110 4” 0.4 120 2.7 3.4 4.2 5.3 6.6 8.1 10
125 5” 0.4 119 3.1 3.9 4.8 6.6 7.4 9.2 11.4
140 5 1/2” 0.5 125 3.5 4.3 5.4 6.7 8.3 10.3 12.7
160 6” 0.5 132 4 4.9 6.2 7.7 9.5 11.8 14.6
180 6” 0.6 145 4.4 5.5 6.9 8.6 10.7 13.3 16.4
200 8” 0.6 145 4.9 6.2 7.7 9.6 11.9 14.7 18.2
225 8” 0.7 152 5.5 6.9 8.6 10.8 13.4 16.6  
250 10” 0.8 160 6.2 7.7 9.6 11.9 14.8 18.4  
280 10” 0.9 170 6.9 8.6 10.7 13.4 16.6 20.6  
315 12” 1 180 7.7 9.7 12.1 15 18.7 23.2  
355 14” 1.1 180 8.7 10.9 13.6 16.9 21.2 26.1  
400 16” 1.2 200 9.8 12.3 15.3 19.1 23.7 29.4  
450 18” 1.4 200 11 13.8 17.2 21.5 26.7 33.1  
500 20” 1.5 250 12.3 15.3 19.1 23.9 29.7 36.8  
560 22” 1.7 260 13.7 17.2 21.4 26.7      
630 24” 1.9 300 15.4 19.3 24.1 30      
710 28” 2   17.4 21.8          
800 32” 2   19.7 24.5          
900 36” 2   22 27.6          

 

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