Annular preventers are designed to seal the wellhead with or without a pipe string during drilling and repair to ensure safe work, prevent blowouts from open fountains, and protect the subsoil and the environment. Annular preventers are made in 2 versions “A” and “B”

Delivery set includes: preventer assembly, spare seals and cuffs, tools.

  • Preventer operation – hydraulic (manual)
  • Meets technical requirements API 16A
  • Nominal size, mm (in): 180-230 (7 1/16-9)
  • Work pressure, MPA (PSI): 35-70 (5000-10000)
  • Service environment: oil, gas, solution, water
  • Work temperature, °С: from -60 to +121
  • Material class: АА, ВВ, СС, DD, ЕЕ, FF, НН

Specifications

№ Type Nominal size Work pressure, MPa (PSI)
mm in 35 (5000) 70 (10000)
1 UHP 180 180 7 1/16 + +
2 UHP 230 230 9 + +