Slip-On Flange
Application Scenarios:
● General low-pressure normal-temperature transmission pipelines: water supply and drainage, sewage treatment, ventilation, ordinary compressed air and fire-fighting pipelines;
● Civil buildings and general industrial projects with mild temperature variation, no severe vibration, high temperature or high pressure working conditions;
● Low-pressure auxiliary pipelines and plant circulating cooling water pipelines of small and medium-sized chemical plants.
● General low-pressure normal-temperature transmission pipelines: water supply and drainage, sewage treatment, ventilation, ordinary compressed air and fire-fighting pipelines;
● Civil buildings and general industrial projects with mild temperature variation, no severe vibration, high temperature or high pressure working conditions;
● Low-pressure auxiliary pipelines and plant circulating cooling water pipelines of small and medium-sized chemical plants.
Product Model
Description
- 产品描述
-
Product Overview
The pipe is inserted from the rear end of the flange. Two fillet welds are adopted to join the outer wall of the pipe and the inner bore of the flange. No pre-machining of bevels is required, enabling simple on-site welding operation.
Core Technical Parameter Table
Parameter Item Parameter Value Abbreviation SO Full Product Name Slip-On Flange GB Standard Materials Carbon Steel:20#
Alloy Steel:16Mn、20MnMo、15CrMo、12Cr1MoV、14Cr1Mo、12Cr2Mo1、12Cr2Mo1V、12Cr5Mo、10Cr9Mo1VNbN、30CrMo、35CrMo
Low Temperature Steel:16MnD、20MnMoD、09MnNiD
Austenitic Stainless Steel:S30408 (304)、S30403 (304L)、S30409 (304H)、S32168 (321)、S32169 (321H) 、S34778 (347)、S34779 (347H) 、S31608 (316) 、S31603 (316L) 、S31609 (316H)
Duplex Stainless Steel:S22053 (2205)ASTM & ASME Materials Carbon Steel:A105
Low Temperature Carbon Steel (A350):LF2、LF3、LF6
Line Pipe Steel (A694):F52、F60、F65、 F70
Low Alloy Steel (A182):F5、F5a、F9、F91、F92、F11 (Cl.1/2/3)、F22 (Cl.1/3)
Austenitic Stainless Steel (A182):F304、F304L、F304H、F316、F316L、F316H、F321、F321H、F347、F347H
Duplex Stainless Steel (A182):F51 (2205)、F60 (S32205)Sealing Face Type RF、FF、MFM、TG PN Pressure Rating (GB Standard) PN6、PN10、PN16、PN25、PN40、PN63、PN100 Class Pressure Rating (ASME Standard) Class 150、300、600、900、1500 Nominal Size DN10-DN3000 Certifications API/ISO/CE Payment Terms L/C, D/P, T/T Delivery Lead Time 10-30 day Production Capacity 5000TONS/MONTH Applicable Standard The company manufactures flange products complying with international and domestic standards including ANSI B16.5, ASME B16.47/16.48, DIN EN 1092-1/2, JIS B2220, GOST 12821-80, GB/T 9124.1, SH/T 3406, SH/T 3426, SH/T 3425, HG/T 20615 and HG/T 20592. Product Parameters
● HG/T20616-2009(SO)
Class150(PN20)
（mm）
Nominal Dimension Outside Diameter
AFlange Outside Diameter
DConnection Dimension Flange Thickness
CFlange Bore
BHub Large End Diameter
NFlange Height
HTheoretical Weight
KgDN NPS Bolt Circle Diameter
KBolt Hole Diameter
LNumber of Bolt Holes
n(pcs )15 ½ 21.3 90 88.9 60.3 16 15.7 4 9.6 22.5 22.4 30 30.2 14 0.39 20 3/4 26.9 100 98.6 69.9 16 15.7 4 11.2 27.5 27.7 38 38.1 14 0.56 25 1 33.7 110 108 79.4 16 15.7 4 12.7 34.5 34.5 49 49.3 16 0.78 32 1¼ 42.4 115 117.3 88.9 16 15.7 4 14.3 43.5 43.2 59 58.7 19 1.03 40 1½ 48.3 125 127 98.4 16 15.7 4 15.9 49.5 49.5 65 65 21 1.32 50 2 60.3 150 152.4 120.7 18 19.1 4 17.5 61.5 62 78 77.7 24 2.06 65 2½ 76.1 180 177.8 139.7 18 19.1 4 20.7 77.6 74.7 90 90.4 27 3.28 80 3 88.9 190 190.5 152.4 18 19.1 4 22.3 90.5 90.7 108 108 29 3.85 100 4 114.3 230 228.6 190.5 18 19.1 8 22.3 116.0 116.1 135 134.9 32 5.3 125 5 139.7 255 254 215.9 22 22.4 8 22.3 143.5 143.8 164 163.6 35 6.07 150 6 168.3 280 279.4 241.3 22 22.4 8 23.9 170.5 170.7 192 192 38 7.45 200 8 219.1 345 342.9 298.5 22 22.4 8 27.0 221.5 221.5 246 246.1 43 12.1 250 10 273 405 406.4 362.0 26 25.4 12 28.6 276.5 276.3 305 304.8 48 16.5 300 12 323.9 485 482.6 431.8 26 25.4 12 30.2 328.0 327.1 365 365.3 54 26.2 350 14 355.6 535 533.4 476.3 30 28.4 12 33.4 360.0 359.1 400 400.1 56 34.6 400 16 406.4 595 596.9 539.8 30 28.4 16 35.0 411.0 410.5 457 457.2 62 44.8 450 18 457 635 635 577.9 33 31.75 16 38.1 462.0 461.8 505 505 67 48.9 500 20 508 700 698.5 635.0 33 31.75 20 41.3 513.5 513.1 559 558.8 71 61.9 600 24 610 815 812.8 749.3 36 35.1 20 46.1 616.5 616 663 663.4 81 86.9 Class300(PN50)
（mm）
Nominal Dimension Outside Diameter
AFlange Outside Diameter
DConnection Dimension Flange Thickness
CFlange Bore
BHub Large End Diameter
NFlange Height
HTheoretical Weight
KgDN NPS Bolt Circle Diameter
KBolt Hole Diameter
LNumber of Bolt Holes
n(pcs )15 ½ 21.3 95 95.3 66.7 16 15.7 4 12.7 22.5 22.4 38 38.1 21 0.64 20 ¾ 26.9 115 117.3 82.6 18 19.1 4 14.3 27.5 27.7 48 47.7 24 1.12 25 1 33.7 125 123.9 88.9 18 19.1 4 15.9 34.5 34.5 54 53.8 25 1.36 32 1¼ 42.4 135 133.3 98.4 18 19.1 4 17.5 43.5 43.2 64 63.5 25 1.68 40 1½ 48.3 155 155.4 114.3 22 22.4 4 19.1 49.5 49.5 70 69.85 29 2.49 50 2 60.3 165 165.1 127.0 18 22.4 8 20.7 61.5 62 84 84.1 32 2.87 65 2½ 76.1 190 190.5 149.2 22 22.4 8 23.9 77.6 74.7 100 100.1 37 4.32 80 3 88.9 210 209.5 168.3 22 22.4 8 27.0 90.5 90.7 117 117.3 41 5.85 100 4 114.3 255 254 200.0 22 22.4 8 30.2 116.0 116.1 146 146 46 9.61 125 5 139.7 280 279.4 235.0 22 22.4 8 33.4 143.5 143.8 178 177.8 49 12.3 150 6 168.3 320 317.5 269.9 22 22.4 12 35.0 170.5 170.7 206 206.2 51 15.6 200 8 219.1 380 381 330.2 26 25.4 12 39.7 221.5 221.5 260 260.3 60 24.2 250 10 273 445 444.5 387.4 30 28.4 16 46.1 276.5 276.3 321 320.5 65 34.1 300 12 323.9 520 520.7 450.8 33 31.75 16 49.3 328.0 327.1 375 374.6 71 49.8 350 14 355.6 585 584.2 514.4 33 31.75 20 52.4 360.0 359.1 425 425.4 75 69.9 400 16 406.4 650 647.7 571.5 36 35 20 55.6 411.0 410.5 483 482.6 81 88.1 450 18 457 710 711 628.6 36 35 24 58.8 462.0 461.8 533 533.4 87 109 500 20 508 775 774.7 685.8 36 35 24 62.0 513.5 513.1 587 597.2 94 134 600 24 610 915 914.4 812.8 42 41 24 68.3 616.5 616 702 701.5 105 201 Class600(PN110)
（mm）
Nominal Dimension Outside Diameter
AFlange Outside Diameter
DConnection Dimension Flange Thickness
CFlange Bore
BHub Large End Diameter
NFlange Height
HTheoretical Weight
KgDN NPS Bolt Circle Diameter
KBolt Hole Diameter
LNumber of Bolt Holes
n(pcs )15 ½ 21.3 95 95.3 66.7 16 15.7 4 14.3 22.5 22.4 38 38.1 22 0.74 20 ¾ 26.9 115 117.3 82.6 18 19.1 4 15.9 27.5 27.7 48 47.8 25 1.27 25 1 33.7 125 123.9 88.9 18 19.1 4 17.5 34.5 34.5 54 53.8 27 1.52 32 1¼ 42.4 135 133.3 98.4 18 19.1 4 20.7 43.5 43.2 64 63.5 29 2.03 40 1½ 48.3 155 155.4 114.3 22 22.4 4 22.3 49.5 49.5 70 69.85 32 2.96 50 2 60.3 165 165.1 127.0 18 19.1 8 25.4 61.5 62 84 84.1 37 3.62 65 2½ 76.1 190 190.5 149.2 22 22.4 8 28.6 77.6 74.7 100 100.1 41 5.28 80 3 88.9 210 209 168.3 22 22.4 8 31.8 90.5 90.7 117 117.3 46 7 100 4 114.3 275 273 215.9 26 25.4 8 38.1 116.0 116.1 152 152.4 54 14.5 125 5 139.7 330 330.2 266.7 30 28.4 8 44.5 143.5 143.8 189 189 60 24.4 150 6 168.3 355 355.6 292.1 30 28.4 12 47.7 170.5 170.7 222 222.3 67 28.7 200 8 219.1 420 419 349.2 33 31.75 12 55.6 221.5 221.5 273 273.1 76 43.4 250 10 273 510 508 431.8 36 35.1 16 63.5 276.5 276.3 343 342.9 86 70.3 300 12 323.9 560 558 489.0 36 35.1 20 66.7 328.0 327.1 400 400.1 92 84.2 350 14 355.6 605 603.3 527.0 39 38.1 20 69.9 360.0 359.1 432 431.8 94 98.7 400 16 406.4 685 685.8 603.2 42 41.1 20 76.2 411.0 410.5 495 495.3 106 142 450 18 457 745 743 654.0 45 44.5 20 82.6 462.0 461.8 546 546.1 117 173 500 20 508 815 812.8 723.9 45 44.5 24 88.9 513.5 513.1 610 609.6 127 220 600 24 610 940 939.8 838.2 51 50.8 24 101.6 616.5 616 718 717.6 140 312 Class900(PN150)
（mm）
Nominal Dimension Outside Diameter
AFlange Outside Diameter
DConnection Dimension Flange Thickness
CFlange Bore
BHub Large End Diameter
NFlange Height
HTheoretical Weight
KgDN NPS Bolt Circle Diameter
KBolt Hole Diameter
LNumber of Bolt Holes
n(pcs )15 1/2 21.3 120 120.6 82.6 22 22.4 4 22.3 22.5 22.4 38 38.1 32 1.74 20 3/4 26.9 130 130 88.9 22 22.4 4 25.4 27.5 27.7 44 44.4 35 2.34 25 1 33.7 150 149.3 101.6 26 25.4 4 28.6 34.5 34.5 52 52.3 41 3.44 32 11/4 42.4 160 158.7 111.1 26 25.4 4 28.6 43.5 43.2 64 63.5 41 3.91 40 11/2 48.3 180 177.8 123.8 30 28.4 4 31.8 49.5 49.5 70 69.85 44 5.36 50 2 60.3 215 215.9 165.1 26 25.4 8 38.1 61.5 62 105 104.6 57 9.85 65 21/2 76.1 245 244.3 190.5 30 28.4 8 41.3 77.6 74.7 124 123.9 64 13.7 80 3 88.9 240 241.3 190.5 26 25.4 8 38.1 90.5 90.7 127 127 54 11.6 100 4 114.3 290 292.1 235.0 33 31.75 8 44.5 116.0 116.1 159 158.7 70 19.7 125 5 139.7 350 349.2 279.4 36 35 8 50.8 143.5 143.8 190 190.5 79 31.9 150 6 168.3 380 381 317.5 33 31.75 12 55.6 170.5 170.7 235 234.9 86 41.1 200 8 219.1 470 469.9 393.7 39 38.1 12 63.5 221.5 221.5 298 298.4 102 70.7 250 10 273 545 546.1 469.9 39 38.1 16 69.9 276.5 276.3 368 368.4 108 101 300 12 323.9 610 609.6 533.4 39 38.1 20 79.4 328.0 327.1 419 419.1 117 133 350 14 355.6 640 641.3 558.8 42 41.1 20 85.8 360.0 359.1 451 450.8 130 153 400 16 406.4 705 704.8 616.0 45 44.4 20 88.9 411.0 410.5 508 508 133 185 450 18 457 785 787.4 685.8 51 50.8 20 101.6 462.0 461.8 565 565.1 152 258 500 20 508 855 857.2 749.3 55 53.8 20 108.0 513.5 513.1 622 622.3 159 317 600 24 610 1040 1041.4 901.7 68 66.55 20 139.7 616.5 616 749 749.3 203 606 Class1500(PN260)
（mm）
Nominal Dimension Outside Diameter
AFlange Outside Diameter
DConnection Dimension Flange Thickness
CFlange Bore
BHub Large End Diameter
NFlange Height
HTheoretical Weight
KgDN NPS Bolt Circle Diameter
KBolt Hole Diameter
LNumber of Bolt Holes
n(pcs )15 ½ 21.3 120 120.6 82.6 22 22.4 4 22.3 22.5 22.4 38 38.1 32 1.74 20 3/4 26.9 130 130 88.9 22 22.4 4 25.4 27.5 27.7 44 44.4 35 2.34 25 1 33.7 150 149.3 101.6 26 25.4 4 28.6 34.5 34.5 52 52.3 41 3.44 32 1¼ 42.4 160 158.7 111.1 26 25.4 4 28.6 43.5 43.2 64 63.5 41 3.91 40 1½ 48.3 180 177.8 123.8 30 28.4 4 31.8 49.5 49.5 70 69.85 44 5.36 50 2 60.3 215 215.9 165.1 26 25.4 8 38.1 61.5 62 105 104.6 57 9.85 65 2½ 76.1 245 244.3 190.5 30 28.4 8 41.3 77.6 74.7 124 123.9 64 13.7 ● HG/T20594-2009(SO)
PN6
（mm）
Nominal Dimension
DNOutside Diameter
A1Flange Outside Diameter
DConnection Dimension Flange Thickness
CFlange Bore
B1Flange Hub R Flange Height
HBolt Circle Diameter
KBolt Hole Diameter
LNumber of Bolt Holes
n(pcs )Bolt
ThN A B A B A B 10 17.2 14 75 50 11 4 M10 12 18 15 25 25 4 20 15 21.3 18 80 55 11 4 M10 12 22.5 19 30 30 4 20 20 26.9 25 90 65 11 4 M10 14 27.5 26 40 40 4 24 25 33.7 32 100 75 11 4 M10 14 34.5 33 50 50 4 24 32 42.4 38 120 90 14 4 M12 14 43.5 39 60 60 6 26 40 48.3 45 130 100 14 4 M12 14 49.5 46 70 70 6 26 50 60.3 57 140 110 14 4 M12 14 61.5 59 80 80 6 28 65 76.1 76 160 130 14 4 M12 14 77.5 78 100 100 6 32 80 88.9 89 190 150 18 4 M16 16 90.5 91 110 110 8 34 100 114.3 108 210 170 18 4 M16 16 116 110 130 130 8 40 125 139.7 133 240 200 18 8 M16 18 143.5 135 160 160 8 44 150 168.3 159 265 225 18 8 M16 18 170.5 161 185 185 10 44 200 219.1 219 320 280 18 8 M16 20 221.5 222 240 240 10 44 250 273 273 375 335 18 12 M16 22 276.5 276 295 295 12 44 300 323.9 325 440 395 22 12 M20 22 328 328 355 355 12 44 PN10
（mm）
Nominal Dimension
DNOutside Diameter
A1Flange Outside Diameter
DConnection Dimension Flange Thickness
CFlange Bore
B1Flange Hub R Flange Height
HGroove Width
bBolt Circle Diameter
KBolt Hole Diameter
LNumber of Bolt Holes
n(pcs )Bolt
ThN A B A B A B 10 17.2 14 90 60 14 4 M12 16 18 15 30 30 4 22 12 15 21.3 18 95 65 14 4 M12 16 22.5 19 35 35 4 22 12 20 26.9 25 105 75 14 4 M12 18 27.5 26 45 45 4 26 12 25 33.7 32 115 85 14 4 M12 18 34.5 33 52 52 4 28 - 32 42.4 38 140 100 18 4 M16 18 43.5 39 60 60 6 30 - 40 48.3 45 150 110 18 4 M16 18 49.5 46 70 70 6 32 - 50 60.3 57 165 125 18 4 M16 18 61.5 59 84 84 5 28 - 65 76.1 76 185 145 18 8 M16 18 77.5 78 104 104 6 32 - 80 88.9 89 200 160 18 8 M16 20 90.5 91 118 118 6 34 - 100 114.3 108 220 180 18 8 M16 20 116 110 140 140 8 40 - 125 139.7 133 250 210 18 8 M16 22 143.5 135 168 168 8 44 - 150 168.3 159 285 240 22 8 M20 22 170.5 161 195 195 10 44 - 200 219.1 219 340 295 22 8 M20 24 221.5 222 246 246 10 44 - 250 273 273 395 350 22 12 M20 26 276.5 276 298 298 12 46 - 300 323.9 325 445 400 22 12 M20 26 328 328 350 350 12 46 - 350 355.6 377 505 460 22 16 M20 26 360 381 400 412 12 53 - 400 406.4 426 565 515 26 16 M24 26 411 430 456 475 12 57 - 450 457 480 615 565 26 20 M24 28 462 485 502 525 12 63 - 500 508 530 670 620 26 20 M24 28 513.5 535 559 581 12 67 - 600 610 630 780 725 30 20 M27 28 616.5 636 658 678 12 75 - PN16
（mm）
Nominal Dimension
DNOutside Diameter
A1Flange Outside Diameter
DConnection Dimension Flange Thickness
CFlange Bore
B1Flange Hub R Flange Height
HGroove Width
bBolt Circle Diameter
KBolt Hole Diameter
LNumber of Bolt Holes
n(pcs )Bolt
ThN A B A B A B 10 17.2 14 90 60 14 4 M12 16 18 15 30 30 4 22 4 15 21.3 18 95 65 14 4 M12 16 22.5 19 35 35 4 22 4 20 26.9 25 105 75 14 4 M12 18 27.5 26 45 45 4 26 4 25 33.7 32 115 85 14 4 M12 18 34.5 33 52 52 4 28 5 32 42.4 38 140 100 18 4 M16 18 43.5 39 60 60 6 30 5 40 48.3 45 150 110 18 4 M16 18 49.5 46 70 70 6 32 5 50 60.3 57 165 125 18 4 M16 18 61.5 59 84 84 5 28 5 65 76.1 76 185 145 18 8 M16 18 77.5 78 104 104 6 32 6 80 88.9 89 200 160 18 8 M16 20 90.5 91 118 118 6 34 6 100 114.3 108 220 180 18 8 M16 20 116 110 140 140 8 40 6 125 139.7 133 250 210 18 8 M16 22 143.5 135 168 168 8 44 6 150 168.3 159 285 240 22 8 M20 22 170.5 161 195 195 10 44 6 200 219.1 219 340 295 22 12 M20 24 221.5 222 246 246 10 44 8 250 273 273 405 355 26 12 M24 26 276.5 276 298 298 12 46 10 300 323.9 325 460 410 26 12 M24 28 328 328 350 350 12 46 11 350 355.6 377 520 470 26 16 M24 30 360 381 400 412 12 57 12 400 406.4 426 580 525 30 16 M27 32 411 430 456 475 12 63 12 450 457 480 640 585 30 20 M27 40 462 485 502 525 12 68 12 500 508 530 715 650 33 20 M30 44 513.5 535 559 581 12 73 12 600 610 630 840 770 36 20 M33 54 616.5 636 658 678 12 83 12 PN25
（mm）
Nominal Dimension
DNOutside Diameter
A1Flange Outside Diameter
DConnection Dimension Flange Thickness
CFlange Bore
B1Flange Hub R Flange Height
HGroove Width
bBolt Circle Diameter
KBolt Hole Diameter
LNumber of Bolt Holes
n(pcs )Bolt
ThN A B A B A B 10 17.2 14 90 60 14 4 M12 16 18 15 30 30 4 22 4 15 21.3 18 95 65 14 4 M12 16 22.5 19 35 35 4 22 4 20 26.9 25 105 75 14 4 M12 18 27.5 26 45 45 4 26 4 25 33.7 32 115 85 14 4 M12 18 34.5 33 52 52 4 28 5 32 42.4 38 140 100 18 4 M16 18 43.5 39 60 60 6 30 5 40 48.3 45 150 110 18 4 M16 18 49.5 46 70 70 6 32 5 50 60.3 57 165 125 18 4 M16 20 61.5 59 84 84 6 34 5 65 76.1 76 185 145 18 8 M16 22 77.5 78 104 104 6 38 6 80 88.9 89 200 160 18 8 M16 24 90.5 91 118 118 8 40 6 100 114.3 108 235 190 22 8 M20 24 116 110 145 145 8 44 6 125 139.7 133 270 220 26 8 M24 26 143.5 135 170 170 8 48 6 150 168.3 159 300 250 26 8 M24 28 170.5 161 200 200 10 52 6 200 219.1 219 360 310 26 12 M24 30 221.5 222 256 256 10 52 8 250 273 273 425 370 30 12 M27 32 276.5 276 310 310 12 60 10 300 323.9 325 485 430 30 16 M27 34 328 328 364 364 12 67 11 350 355.6 377 555 490 33 16 M30 38 360 381 418 430 12 72 12 400 406.4 426 620 550 36 16 M33 40 411 430 472 492 12 78 12 450 457 480 670 600 36 20 M33 46 462 485 520 542 12 84 12 500 508 530 730 660 36 20 M33 48 513.5 535 580 602 12 90 12 600 610 630 845 770 39 20 M36×3 58 616.5 636 684 704 12 100 12 PN40
（mm）
Nominal Dimension
DNOutside Diameter
A1Flange Outside Diameter
DConnection Dimension Flange Thickness
CFlange Bore
B1Flange Hub R Flange Height
HGroove Width
bBolt Circle Diameter
KBolt Hole Diameter
LNumber of Bolt Holes
n(pcs )Bolt
ThN A B A B A B 10 17.2 14 90 60 14 4 M12 16 18 15 30 30 4 22 4 15 21.3 18 95 65 14 4 M12 16 22.5 19 35 35 4 22 4 20 26.9 25 105 75 14 4 M12 18 27.5 26 45 45 4 26 4 25 33.7 32 115 85 14 4 M12 18 34.5 33 52 52 4 28 5 32 42.4 38 140 100 18 4 M16 18 43.5 39 60 60 6 30 5 40 48.3 45 150 110 18 4 M16 18 49.5 46 70 70 6 32 5 50 60.3 57 165 125 18 4 M16 20 61.5 59 84 84 6 34 5 65 76.1 76 185 145 18 8 M16 22 77.5 78 104 104 6 38 6 80 88.9 89 200 160 18 8 M16 24 90.5 91 118 118 8 40 6 100 114.3 108 235 190 22 8 M20 24 116 110 145 145 8 44 6 125 139.7 133 270 220 26 8 M24 26 143.5 135 170 170 8 48 7 150 168.3 159 300 250 26 8 M24 28 170.5 161 200 200 10 52 8 200 219.1 219 375 320 30 12 M27 34 221.5 222 260 260 10 52 10 250 273 273 450 385 33 12 M30 38 276.5 276 312 312 12 60 11 300 323.9 325 515 450 33 16 M30 42 328 328 380 380 12 67 12 350 355.6 377 580 510 36 16 M33 46 360 381 424 444 12 72 13 400 406.4 426 660 585 39 16 M36×3 50 411 430 478 518 12 78 14 450 457 480 685 610 39 20 M36×3 57 462 485 522 545 12 84 16 500 508 530 755 670 42 20 M39×3 57 513.5 535 576 598 12 90 17 600 610 630 890 795 48 20 M45×3 72 616.5 636 686 706 12 100 18 Production Process
FAQs
Basic info about your pipe fitting factory, establishment year and location?
Cangzhou Dongjun Pipe was founded in 2000, located in Buzhai Industrial Zone, Mengcun — China’s well-known capital of elbows and pipe fittings. We enjoy convenient transport near Huanghua Port, Beijing and Tianjin. Our annual production capacity reaches 20,000 tons, with 230 employees including 45 professional technical engineers. Factory visits are welcome.
What main pipe fitting products can you provide?
We manufacture high, medium and low pressure steel pipeline components. Main products include flanges, elbows, tees, reducers, socket weld inserts, nozzles and pipe supports. We have more than 1000 specifications covering mainstream pipeline accessories to realize one-stop procurement.
What metal materials are available for your pipe fittings?
We supply carbon steel, alloy steel, stainless steel, duplex steel and nickel-based alloy to fit different temperature, pressure and corrosion environments. If you need special custom metal materials for special working conditions, our technical team can also meet your requirements.
Which international standards do your products comply with?
Our products support GB, ASME, DIN and JIS standards. Every batch of goods can be matched with EN10204:2004 official test reports, which are widely recognized by engineering supervisors in global projects.
How do you control product quality before delivery?
We own over 200 sets of professional production and testing equipment, including full NDT devices, spectrometers and mechanical testing machines. Raw material inspection, semi-finished product testing and finished product full inspection will be completed strictly before shipment to avoid defective goods.
What certifications does your factory hold for project bidding?
We have ISO9001/14001/45001 system certificates, API Spec Q1 10th Edition certificate and China Special Equipment Manufacturing License for pressure pipeline components. All valid certificates can be provided for your tender review at any time.
Qualification
Slip-On Flange
Application Scenarios:
● General low-pressure normal-temperature transmission pipelines: water supply and drainage, sewage treatment, ventilation, ordinary compressed air and fire-fighting pipelines;
● Civil buildings and general industrial projects with mild temperature variation, no severe vibration, high temperature or high pressure working conditions;
● Low-pressure auxiliary pipelines and plant circulating cooling water pipelines of small and medium-sized chemical plants.
● General low-pressure normal-temperature transmission pipelines: water supply and drainage, sewage treatment, ventilation, ordinary compressed air and fire-fighting pipelines;
● Civil buildings and general industrial projects with mild temperature variation, no severe vibration, high temperature or high pressure working conditions;
● Low-pressure auxiliary pipelines and plant circulating cooling water pipelines of small and medium-sized chemical plants.
OUR SERVICE
We offers a wealth of product support resources, including a range of technical and downloadable product manuals to product certifications.
Our Service Product CatalogCOMPANY STRENGTHS
Experience
26 years of professional pipe fittings production and customization experience, with 45 senior technical engineers to support project development.
OEM/ODM
Full support OEM & ODM customization. We produce carbon/alloy/stainless steel fittings with 1000+ specs complying with GB, ASME, DIN, JIS standards.
Reliable Quality
Strict raw material selection & full-process inspection. Our lab equips complete devices for chemical analysis, mechanical test and NDT.
Certification
Possess full authoritative qualifications: ISO triple system, API Spec Q1, national pressure pipeline manufacturing license, EN10204 test certificates available.
Export
Located in Mengcun pipe fittings hub adjacent to Huanghua Port. Products cover all China provinces and export to Southeast Asia, Middle East, South America and more.
Advanced Equipment & Tech
200+ sets of advanced forging, CNC machining and full inspection equipment, annual output reaches 20,000 tons of high-pressure pipe fittings.