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          Your Position: Home > Support > Valve Problems

          What do "PL, WN, SO, BL, TH, IF, SW " represent?

          2024/7/24??????view:

          In pipeline installation construction, it is common to encounter many codes in front of flanges, such as PL, WN, SO, BL, TH, IF, SW, etc. What do these represent?

          (1)PL: Plate Flange板式平焊法蘭

          (2)SO:Slip On Flange帶頸平焊法蘭

          (3)WN:Weld Neck Flange帶頸對(duì)焊法蘭

          (4)IF:Integral pipe Flange整體法蘭

          (5)SW:Socketweld Flange承插焊法蘭

          (6)TH:Threaded Flange螺紋法蘭

          (7)PJ/SE:Loose Flange對(duì)焊環(huán)松套法蘭,

          (8)PJ/PR:平焊環(huán)松套法蘭,

          (9)BL:Blind Flange盲板法蘭/法蘭蓋,

          (10)BL(s):襯里法蘭蓋。

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