API 16A Annular BOP

Specifications

Technical parameters:
Rated working pressure levels: 2000psi, 3000psi, 5000psi;
Temperature level: T75, T25 and TO;
Rated working pressure of accumulator: 3000psi; Recommended working pressure: 1200-1500psi,
Upper connection and lower connection: The upper connection adopts studded connection and the lower connection adopts flange, studded and clamped connection;

Specification of hydraulic control oil ports: 1"NPT, adapter adopts 1-1/2" NPT
The seal ring groove adopts stainless steel of bead weld or anti-corrosion alloy
The materials adopted for bearing parts and pressure regulating parts are anti-corrosion and heat treated materials which can meet the NACE requirements and strengthen requirements.

Features:
Simple and compact structure
The piston is equipped with wear ring which can prolong the service life of BOP;
The enclosure effect of rubber is perfect and it has the capability of helping the enclosure
The bearing reinforcements can strengthen the seal performances of the rubber
It can be easily maintained and the rubber can be replaced without pulling out of the hole
Light weight and small dimension;
Low demand of hydraulic control well and tiny overall dimension;
The connection of cap with the shell adopts the threaded connection

Seal
O-ring is adopted between the cap and shell for the anti-rust
O-ring is adopted between the supporting ring and shell for the static seal
Lip-type is adopted between the support ring and piston for the dynamic seal
Lip-type is adopted between the cap and piston for the dynamic seal
Lip-type is adopted between the Shell and piston for the dynamic seal

Pressure Release
There is one relief valve on the top of cap so as release the pressure.