FH35-35 annular blowout preventer

1. Circular preventers include conical preventers and spherical preventers, which can effectively seal the annular space between drilling tools and the wellbore, fully seal the wellhead, or perform forced tripping operations to prevent overflow or blowout;

2. Its design and manufacturing fully comply with the requirements of API Spec 16A.

Advantages:

a. Can be equipped with rubber cores of different sizes and specifications, widely applicable to various drilling requirements;

b. The shell is made of high-quality low-alloy steel, which has good mechanical strength and impact toughness;

c. The rubber core has a large rubber storage capacity and low friction resistance when switching on and off;

d. The sealing rubber core can be interchanged with the sealing rubber core of the same type of spray preventer;

e. The structure is simple and easy to replace the rubber core.