Standard specification of stainless steel flange: 1/2 ″ ~ 80 ″ (DN10-DN5000) Pressure rating: 0.25Mpa ~ 250Mpa (150Lb ~ 2500Lb).

Standard standards for commonly used stainless steel flanges:

Chinese standard stainless steel flange standard: GB9112-88 (GB9113 · 1-88 ～ GB9123 · 36-88)

American standard stainless steel flange standards: ANSI B16.5, ANSI 16.47 Class150, 300, 600, 900, 1500 (TH, LJ, SW)

Japanese standard stainless steel flange standards: JIS 5K, 10K, 16K, 20K (PL, SO, BL)

German standard stainless steel flange standards: DIN2527, 2543, 2545, 2566, 2572, 2573, 2576, 2631, 2632, 2633, 2634, 2638

(PL, SO, WN, BL, TH)

Italian stainless steel flange standards: UNI 2276, 2277, 2278, 6083, 6084, 6088, 6089, 2299, 2280, 2281, 2282, 2283

(PL, SO, WN, BL, TH)

British stainless steel flange standard: BS4504, 4506

Standards for chemical stainless steel flanges:
HG5010-52 ～ HG5028-58;
HGJ44-91 ～ HGJ65-91;
HG20592-97 (HG20593-97 ～ HG20614-97);
HG20615-97 (HG20616-97 ～ HG20635-97).

Mechanical stainless steel flange standard: JB81-59 ～ JB86-59, JB / T79-94 ～ JB / T86-94

Pressure vessel stainless steel flange standard: JB1157-82 ～ JB1160-82, JB4700-2000 ～ JB4707-2000

Marine flange stainless steel flange standards: GB / T11694-94, GB / T3766-1996, GB / T11693-94, GB10746-89, GB / T4450-1995, GB / T11693-94, GB573-65, GB2506-89, CBM1012-81, CBM1013, etc.

Flange production stainless steel flange standard

Chinese standard: GB / T9112-2000 (GB9113 · 1-2000 ～ GB9123 · 4-2000)

Chemical industry: HG5010-52 ～ HG5028-58, HGJ44-91 ～ HGJ65-91, HG20592-97 series, HG20615-97 series

Machinery: JB81-59 ～ JB86-59, JB / T79-94 ～ JB / T86-94, JB / T74-1994

Pressure vessel: JB1157-82 ～ JB1160-82, JB4700-2000 ～ JB4707-2000 B16.47A / B B16.39 B16.48