Annular blowout preventer

Features:

  1. Rubber core store glues big quantity, small friction resistance when switch pressure sealing ability.
  2. Using hemispherical head, no stress concentration phenomenon when under pressure, casing stress evenly, easy to tear open outfit.
  3. Piston stroke is short, low height, and set the wear ring.
  4. long-life sealing element provides a positive seal after hundreds of tests to full working pressure
  5. Strong, simple construction- only five major parts, which simplifies maintenance.
  6. Sealing element design provides long stripping life
  7. High sulfate-resistant blowout preventer internal all parts contact well liquid surfacing high nickel base alloy, can achieve the highest levels of resistance to effects such as H2S and CO2. For the customer to choose

Description

The Annular blowout preventer consists of a body, upper housing, sealing element, dust-proof ring, and piston. It provides a rugged, reliable preventer and ease of service and is widely used Offshore (subsea and surface) and onshore.

The annular blowout preventer is compact, seal any size Kellys, drill pipe, tool joints, drill collars, casing, or wireline. Sphericals also provide positive pressure control for stripping drill pipes into and out of the hole.

The annular blowout preventer is Manufactured in accordance with API Specification 16A, and NACE MR0175 per API Specification 16A, Temperature T20, and Standard nitrile packing element: 40°F to 170°F.

Specifications:

Model Main bore mm(in) Working pressure MPa (psi) Operating Pressure MPa Connection type Dimension mm weight kg
Top Bottom OD Height
FH18-21 179
(7-1/16)
21(3000) 8.4~10.5 studded fanged 737 743 1350
FH18-35 35(5000) 737 790 1572
FH18-70/105 70(10000) 1092 1136 5070
FH23-21 228
(9)
21(3000) 900 830 2104
FH23-35 35(5000) 998 1200 3540
FH28-21 279
(11)
21(3000) 1013 838 2574
FH28-35 35(5000) 1138 1081 4410
FH28-35/70 35(5000) 1138 1096 4451
FH28-70/105 70(10000) 1448 1420 10800
FH35-35 346
(13-5/8)
35(5000) 1270 1160 6400
FH35-35/70 35(5000) 1270 1227 6843
FH35-70/105 70(10000) 1640 1664 15110
FH43-35 425
(16-3/4)
35(5000) 1524 1320 10834
FH48-70 476
(18-3/4)
70(10000) 1937 1882 27161

Drawing:

drawing
drawing

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