Transition adapters

Transition adapters are designed for mounting technological equipment and transition from one flange standard size to another. They are used in wellhead and blowout preventer equipment. Manufactured according to GOST 28919-91.

Specifications pdf (151 KB)
  • Versions of port area of the upper and lower flanges, mm (in): 52 (2 1/16), 65 (2 9/16), 80 (3 1/8), 100 (4 1/16), 156 (6 3/25), 180 (7 1/16), 230 (9), 280 (11), 350 (13 5/8), 425 (16 3/4), 540 (21 1/4);
  • Operating pressure, MPa (psi): 14 (2000), 21 (3000), 35 (5000), 70 (10000), 105 (15000);
  • Well medium – oil, gas, gas condensate with content of mechanical impurities of up to 25 mg/l, local water of up to 80% by volume;
  • Climate version MCC under GOST 15150-69;
  • Placement category I under GOST 15150-69;
  • Ambient temperature -60°С to +40°С;
  • Corrosion-proof design: non-corrosive, corrosive К1 and К2.
Basic specifications
  • Versions of port area of the upper and lower flanges, mm (in): 52 (2 1/16), 65 (2 9/16), 80 (3 1/8), 100 (4 1/16), 156 (6 3/25), 180 (7 1/16), 230 (9), 280 (11), 350 (13 5/8), 425 (16 3/4), 540 (21 1/4);
  • Operating pressure, MPa (psi): 14 (2000), 21 (3000), 35 (5000), 70 (10000), 105 (15000);
  • Well medium – oil, gas, gas condensate with content of mechanical impurities of up to 25 mg/l, local water of up to 80% by volume;
  • Climate version MCC under GOST 15150-69;
  • Placement category I under GOST 15150-69;
  • Ambient temperature -60°С to +40°С;
  • Corrosion-proof design: non-corrosive, corrosive К1 and К2.