Nominal Pressure
According to SNI 4829.2: 2015, Article 3.1.2.1 Nominal Pressure is a numerical design of pipe pressure that is related to the mechanical properties of the components of a piping system.
Nominal pressure on the piping system on the HDPE SOLID WALL PIPE SHUANGLIN, namely:
A. HDPE SOLID WALL PIPE SHUANGLIN PN 8 (SDR 11)
Used for water installations that have a low pressure not reaching 8 kg/cm2 or 8 bar. In this type of pipe, the dimensions are OD (outer diameter) 75 mm or ND (nominal diameter) 2.5 inches with a wall thickness of 3.6 mm to OD 800 mm or ND 32 inches with a wall thickness of 38.1 mm.
B. HDPE SOLID WALL PIPE SHUANGLIN PN 10 (SDR 17)
Used for water installations that have a pressure of up to 10 kg/cm2 or 10 bar or less. This type of pipe starts from dimensions OD (outer diameter) 20 mm or ND (nominal diameter) 0.5 inches with a wall thickness of 1.2 mm to OD 800 mm or ND 32 inches with a wall thickness of 47.4 mm.
C. HDPE SOLID WALL PIPE SHUANGLIN PN 12.5 (SDR 13.6)
Used for water installations in areas where the contour of the land is difficult to reach and for water installations in urban areas that have a pressure of up to 12.5 kg/cm2 or 12.5 bar. This type of pipe starts from dimensions OD (outer diameter) of 20 mm or ND (nominal diameter) of 0.5 inches with a wall thickness of 1.5 mm to OD 800 mm or ND 32 inches with a wall thickness of 58.8 mm.
D. HDPE SOLID WALL PIPE SHUANGLIN PN 16 (SDR 11)
Used for water installations that have a high pressure of up to 16 kg/cm2 or 16 bar, such as drinking water installations or pam. In this type of pipe, the dimensions are OD (outer diameter) of 20 mm or ND (nominal diameter) of 0.5 inches with a wall thickness of 2 mm to OD 800 mm or ND 32 inches with a wall thickness of 72.6 mm.
The conclusion that the higher the nominal pressure and dimensions of the HDPE SOLID WALL PIPE SHUANGLIN, the greater the thickness and strength of the pipe.
Source: SNI 4829.2:2015 Plastic piping systems-polyethylene (PE) pipes and fittings for drinking water supply systems-Part 2 : pipes
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