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SO Flange
SDFL
In the petrochemical industry, SO flanges are commonly used for utility and auxiliary systems, such as cooling water networks, drainage systems, and low-pressure vent lines. In water treatment plants, they are extensively used for connecting filter pipes, chemical dosing lines, and low-to-medium pressure pumps. In commercial buildings, they are frequently found in HVAC chilled and hot water piping. The commonality in these scenarios is that the pressure ratings are typically in the low to medium range (e.g., PN16/Class300 and below) with stable operating conditions.
In the petrochemical industry, SO flanges are commonly used for utility and auxiliary systems, such as cooling water networks, drainage systems, and low-pressure vent lines. In water treatment plants, they are extensively used for connecting filter pipes, chemical dosing lines, and low-to-medium pressure pumps. In commercial buildings, they are frequently found in HVAC chilled and hot water piping. The commonality in these scenarios is that the pressure ratings are typically in the low to medium range (e.g., PN16/Class300 and below) with stable operating conditions.
