The annular BOP oil equiment can be used to seal up the Kelly, drill pipe joints, drill collars, the casing and cables of various shapes and sizes. It provides
constant pressure control in the course of running/retrieving drill pipes. There are two types of the annular BOP: the spherical and the conical; the former includes the bolted bonnet model and
the wedge bonnet model, both of which are compact in structure and light in weight, and suitable for air transportation and capable of operating at low remperature.
Oil Equipment Technical features:
1. Compact structure for saving space
2. The radial section of the piston is "Z" shaped, short and low
3. The cap is hemispherical, without stress concentration
4. Spherical core storage of large amount of glue, reliable sealing, long life
5. The moving parts have wear ring, reduce the wear of the sealing ring and prolong the service life of the seals