Water pipe size comparison table water pipe specification reference standard
Common standard size control for water pipe and pipe Divide 1 inch into 8 equal parts; 1/81/43/81/25/83/47/8 inches. Equivalent to the usual one to seven points, Smaller sizes are expressed in 1/16, 1/32, 1/64, and the unit is still inches. If the denominator and the molecule can be divided (eg, the molecules are 2, 4, 8, 16, 32), they should be approximated. The inch is indicated by two inches in the upper right corner, such as 1/2" For example, the water pipe of DN25 (25mm, the same below) is the British 1" water pipe, and it is also the 8-point water pipe before liberation. The water pipe of DN15 is an inch 1/2" water pipe, and it is also a 4-point water pipe before liberation. For example, the water pipe of DN20 is an inch 3/4" water pipe, and it is also a 6-point water pipe before liberation. First, the size: DN15 (4 in charge), DN20 (6 in charge), DN25 (1 inch tube), DN32 (1 inch 2 tube), DN40 (1 inch half tube), DN50 (2 inch tube), DN65 (2 inch half tube), DN80 (3 inch tube), DN100 (4 inch tube), DN125 (5 inch tube), DN150 (6 inch tube), DN200 (8 inch tube), DN250 (10 inch tube), etc. Second, the standard: There are two types of imperial standards and international standards. Third, the material: There are many materials, depending on the needs. 1. Plastic tube: There are PVC, UPVC, PPR, PPR steady-state plastic aluminum alloy, aluminum-plastic tube, glass tube, PE tube and so on. 2, metal tube: Galvanized pipe, stainless steel pipe, stainless steel lining plastic pipe, thin-walled stainless steel pipe, galvanized lining plastic pipe, copper pipe, cast iron pipe, etc. The specifications of China's water pipes are all nominally based on the nominal diameter of the legal units in China. For example, DN20 is a galvanized water pipe with a nominal diameter of 20 mm. The series of galvanized water pipes are: DN15, DN20, DN25, DN32, DN4O, DN50, DN65, DN80, DN100, ... and so on. The name you said is a bit of a point before China was liberated. Without its own specifications and units, it used the British unit. The UK unit is: 1 foot (ft) = 12 inches 1 inch (in) = 1000 mils. The specification of the water pipe is the fraction of inches, which is just the division of one inch into eight to indicate the specification of the water pipe, which creates a unit of British cents. In fact, there is no British cents unit, but the score is taken in inches to indicate the size below 1 inch. Divide the inch into 8 points, it should be said like this: 1/8 inch 1/43/81/25/83/47/8 This is equivalent to 1 to 7 points, and the smaller size is expressed in 1/16, 1/32, 1/64, and the unit is still inches. If the denominator and the molecule can be divided, if the numerator is 2, 4, 8, 16, 32, if it can be divided, it should be approximated. The inch is indicated by two inches in the upper right corner, such as 1/2" For example, the water pipe of DN25 is an inch 1" water pipe, and it is also an 8-minute water pipe before liberation. The water pipe of DN15 is an inch 1/2" water pipe, and it is also a 4-point water pipe before liberation. For example, the water pipe of DN20 is an inch 3/4" water pipe, and it is also a 6-point water pipe before liberation. Editor in charge: Wang Zhen Screwdriver Types,Offset Screwdriver,Mobile Screwdriver,Magnetic Screwdriver henan horn tools co.,ltd. , https://www.nbhorntoolsltd.com