The meaning of elbow
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Meaning of elbow DN500Ⅱ-Sch20 90E(L): Meaning of elbow DN500Ⅱ-Sch40S 90E(L)
DN500 refers to the nominal pipe diameter; once this is determined, the meaning of the number following it is unclear. Sch-20 denotes a serial number, with \"schedule\" indicating 20. 90 refers to a 90-degree elbow; if it’s 45, then it’s a 45-degree elbow. E(L) indicates an elbow
90-degree stainless steel equal-diameter elbow with a nominal diameter of 500 mm and a wall thickness of 2.9 mm; 90-degree stainless steel equal-diameter elbow with a nominal diameter of 500 mm and a wall thickness of 4.0 mm
Excuse me, upstairs – where can one tell that its material is stainless steel? Thank you. This post was last edited by zhencht on 2009-2-3 10:52]
Upstairs, there was a mistake regarding the SCH values: those with an S indicate stainless steel, while those without an S refer to carbon steel or alloy steel. 90E(L) refers to a 90-degree elbow with a long radius; if it is written as 90E(S), it denotes a 90-degree elbow with a short radius.
Is that II the steel pipe from the II series?
Nominal diameter 500, Series II, SCH is the wall thickness grade, 90° long radius elbow.
The meaning of elbow DN500Ⅱ-Sch20 90E(L): The nominal diameter is 500, and it belongs to the II series of pipes. The pipe grade is Sch20; the pipe is not made of stainless steel (for austenitic stainless steel pipes, the grade is indicated with an S after it). 90E(L) denotes an elbow with a long radius of 90 degrees
SCH stands for SCH value: the version with an S denotes stainless steel, while the version without an S refers to carbon steel or alloy steel; it also refers to the wall thickness grade, as you mentioned. Do you agree with the explanation on floor 5?
E(L) ELLOW(LONG) Elbow (long radius)