The Self Contained Surface Safety Valve (SCSSV)uses hydraulic fluid pressure
generated by a manual hand pump. Its major use is to protect facilities
from the effects of pipeline failure and abnormal conditions. Unlike DLPO
systems, line pressure is not used to operate the SCSSV system.
The Surface Safety Valve system is designed for remote shutdown of
wellheads or flowlines that encounter a high or low pressure condition. It
is operated by high and low pressure pilots sensing the flow line pressure,
which enters the system through a tap in the upstream flange of the valve.
The optional ESD emergency shutdown system can be used to enable field
operators to shut down the flow line at any desired time during production,
testing or maintenance operations.
Available in 2.1/16” through 7 1/16” nominal valve sizes with various