safety valve

Features & Benefits
Subsurface Safety Valve is a kind of tubing 
retrievable safety valve which is controlled at the 
surface. It directly connects to the tubing string. 
There is a hydraulic control line connecting to the 
safety valve from the ground. While a certain 
amount of pressure is supplied through this 
control line to the safety valve, the valve remains 
open; while the pressure is released, the safety 
valve will close and the tubing pass is closed at 
the same time. 
The flapper has a pressure-equalizing type and 
non-pressure equalizing type; The upper and 
bottom thread can be adjusted according to the 
client’s requirement.
Applications 
•Production and cement through applications.
•Any area in which the integrity of the wellhead can be compromised.