SFZ18-35 (half, fully enclosed) three-wing blowout preventer

The shell, side door pressure parts and connecting bolts of the blowout preventer are all forged from alloy and steel. All metal parts are surface treated with nickel-phosphorus electroless plating, which has excellent anti-corrosion performance.

The sluice chamber on the shell adopts an elliptical structure, which improves the force distribution of the shell and improves the safety performance of the body. There are two grit tanks in the sluice chamber. When the gate is closed to the wellhead, the mud and sand can be removed. When pushed to the well head, the side door is of flat plate type, which is convenient to replace the gate assembly. The ram is always separated into the top seal and the front seal, which is convenient for replacement. Seal between ram shaft and side door

It adopts the combined sealing form of Yx-ring and O-ring, with reliable sealing and easy replacement. The locking shaft is positioned and supported by a thrust bearing, which is easy to operate. The shape of the blowout preventer is a three-wing "D" shape, which combines half-sealed and full-sealed.

The manual blowout preventer has reasonable design, compact structure, light weight, small size, convenient operation and maintenance, and is well received by users.

Technical Parameters

Model: SFZ18-35,

Working pressure: 35MPa

Upper and lower flange connection size:

Flange outer diameter: medium 380mm

Pitch diameter of backing ring groove: middle 211.14mm

Pad ring number: R45

Dimensions (length x width x height): 1040x700x483mm