What standard is HGJ46?
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I majored in mechanical engineering. I received a set of equipment drawings (old-style drawings), and the standard for pipe flanges specified there is HGJ46-91. Isn’t the standard for pipe flanges used these days always from the HG2059X series? What kind of flange is this again? I checked online, and it seems to be a thrust flat welding flange. Is it HG20594 then? Are all the sizes the same? I would appreciate some guidance from those who are more experienced.
This standard is an obsolete old pipe flange standard; it is basically identical to HG20592. It would be best if you specified the details so that someone familiar with the old standards can help you verify it. To avoid mistakes.
Exciting flat welding flange. It should be HG20594.
It is the old pipe flange standard; it can only be used during equipment renovation and redesign, and is not adopted in the design of new projects.
Isn’t HG20592 the standard for \"Types and Parameters of Steel Pipe Flanges\"? This equipment needs to be reused. I’m in charge of piping installation. So, is it sufficient to use flanges that comply with HG20594 RF? (This interface is RF-based.) Our company doesn’t have this old standard at all :'( Does anyone who has it have a copy they can share with me? Is it possible to replace it with a flange that meets the new standard? My QQ is 371042736. This post was last edited by 040801083 on 2009-4-13 at 14:44.]
The old and new flange standards may differ; it’s best to find the old standard, or else replace the flanges on the equipment as well.
The connection dimensions of the old and new standards are the same.
Flat-faced steel pipe flange with neck, weld-on type.
HGJ 44-1991 Types, connection dimensions and sealing surface dimensions of steel pipe flanges. HGJ 45-1991 Raised-face butt-weld steel pipe flanges. HGJ 46-1991 Raised-face neck-type butt-weld steel pipe flanges. HGJ 47-1991 Male-and-female face neck-type butt-weld steel pipe flanges. HGJ 48-1991 Tongue-and-groove face neck-type butt-weld steel pipe flanges. HGJ 49-1991 Full-face neck-type butt-weld steel pipe flanges. HGJ 50-1991 Raised-face neck-type butt-weld steel pipe flanges – these have been replaced by HG20592–20635-97.
HGJ46-91: PM1.0MPa (10 bar) raised-face flanges with a diameter (mm). Nominal diameter; outer diameter of the pipe; connection dimensions; hexagon-head bolts/screws; sealing surface dimensions; flange thickness; inner diameter of the flange; flange neck length; flange height; groove width; theoretical weight of the flange; outer diameter of the flange; diameter of the circle formed by bolt holes; diameter of each bolt hole; number of bolt holes; thread type; length of bolts/screws.
DNADKLnThIIdf1CBNRHb (kg): 10, 15, 20, 25, 32. 14, 18, 25, 32, 38. 90, 95, 105, 115, 140. 60, 65, 75, 85, 100. 14, 14, 14, 14, 18. 4, 4, 4, 4, 4. M12, M12, M12, M12, M16. 50, 50, 55, 55, 60. 65, 65, 70, 70, 80. 40, 45, 58, 68, 78. 2, 2, 2, 2, 2. 14, 14, 16, 16, 16. 15, 19, 26, 33, 39. 30, 35, 45, 52, 60. 3, 3, 4, 4, 5. 20, 20, 24, 24, 24. 0.57, 0.64, 0.93, 1.10, 1.61. 40, 50, 65, 80, 100. 45, 57, 76, 89, 108. 150, 165, 185, 200, 220. 110, 125, 145, 160, 180. 18, 18, 18, 18, 18. 4, 4, 4, 8, 8. M16, M16, M16, M16, M16. 60, 65, 65, 70, 70. 80, 85, 85, 90, 90. 88, 102, 122, 138, 158. 3, 3, 3, 3. 316, 18, 18, 20, 20. 46, 59, 78, 91, 110. 70, 84, 104, 118, 140. 5, 5, 6, 6, 6. 24, 26, 30, 34, 38. 1.77, 2.38, 3.00, 3.74, 4.60. 125, 150, 200, 250, 300. 133, 159, 219, 273, 325. 250, 285, 340, 395, 445. 210, 240, 295, 350, 400. 18, 22, 22, 22, 22. 8, 8, 8, 12, 12. M16, M20, M20, M20, M20. 70, 75, 80, 85, 85. 95, 105, 105, 110, 110. 188, 212, 268, 320, 370. 3, 3, 3, 3. 4, 22, 22, 24, 26, 26. 135, 161, 222, 276, 328. 168, 195, 246, 298, 350. 6, 8, 8, 10, 10. 44, 44, 44, 46, 46. 6.56, 8.02, 9.89, 12.5, 14.0. 350, 400, 450, 500, 600. 377, 426, 480, 530, 630. 505, 565, 615, 670, 780. 460, 515, 565, 620, 725. 22, 26, 26, 26, 30. 16, 16, 20, 20, 20. M20, M24, M24, M24, M27. 85, 90, 95, 95, 95. 110, 120, 125, 125, 130. 430, 482, 532, 585, 685. 4, 4, 4, 4, 5. 26, 26, 28, 28, 28. 381, 430, 485, 535, 636. 400, 456, 502, 559, 658. 10, 10, 12, 12, 12. 53, 57, 63, 67, 73. 17.3, 22.3, 24.0, 29.8, 36.3
HGJ46-91: PM1.0MPa (10 bar) raised-face flanges with a diameter (mm). Nominal diameter; outer diameter of the pipe; connection dimensions; hexagon-head bolts/screws; sealing surface dimensions; flange thickness; inner diameter of the flange; flange neck length; flange height; groove width; theoretical weight of the flange; outer diameter of the flange; diameter of the circle formed by bolt holes; diameter of each bolt hole; number of bolt holes; thread type; length of bolts/screws.
DNADKLnThIIdf1CBNRHb (kg): 10, 15, 20, 25, 32. 14, 18, 25, 32, 38. 90, 95, 105, 115, 140. 60, 65, 75, 85, 100. 14, 14, 14, 14, 18. 4, 4, 4, 4, 4. M12, M12, M12, M12, M16. 50, 50, 55, 55, 60. 65, 65, 70, 70, 80. 40, 45, 58, 68, 78. 2, 2, 2, 2, 2. 14, 14, 16, 16, 16. 15, 19, 26, 33, 39. 30, 35, 45, 52, 60. 3, 3, 4, 4, 5. 20, 20, 24, 24, 24. 0.57, 0.64, 0.93, 1.10, 1.61. 40, 50, 65, 80, 100. 45, 57, 76, 89, 108. 150, 165, 185, 200, 220. 110, 125, 145, 160, 180. 18, 18, 18, 18, 18. 4, 4, 4, 8, 8. M16, M16, M16, M16, M16. 60, 65, 65, 70, 70. 80, 85, 85, 90, 90. 88, 102, 122, 138, 158. 3, 3, 3, 3. 316, 18, 18, 20, 20. 46, 59, 78, 91, 110. 70, 84, 104, 118, 140. 5, 5, 6, 6, 6. 24, 26, 30, 34, 38. 1.77, 2.38, 3.00, 3.74, 4.60. 125, 150, 200, 250, 300. 133, 159, 219, 273, 325. 250, 285, 340, 395, 445. 210, 240, 295, 350, 400. 18, 22, 22, 22, 22. 8, 8, 8, 12, 12. M16, M20, M20, M20, M20. 70, 75, 80, 85, 85. 95, 105, 105, 110, 110. 188, 212, 268, 320, 370. 3, 3, 3, 3. 4, 22, 22, 24, 26, 26. 135, 161, 222, 276, 328. 168, 195, 246, 298, 350. 6, 8, 8, 10, 10. 44, 44, 44, 46, 46. 6.56, 8.02, 9.89, 12.5, 14.0. 350, 400, 450, 500, 600. 377, 426, 480, 530, 630. 505, 565, 615, 670, 780. 460, 515, 565, 620, 725. 22, 26, 26, 26, 30. 16, 16, 20, 20, 20. M20, M24, M24, M24, M27. 85, 90, 95, 95, 95. 110, 120, 125, 125, 130. 430, 482, 532, 585, 685. 4, 4, 4, 4, 5. 26, 26, 28, 28, 28. 381, 430, 485, 535, 636. 400, 456, 502, 559, 658. 10, 10, 12, 12, 12. 53, 57, 63, 67, 73. 17.3, 22.3, 24.0, 29.8, 36.3
Is there a standard electronic version? Send me one, thanks, qq879786288