Surface safety valve (SSV) is a hydraulically actuated fail-safe gate valve for producing or testing oil and gas well with high flow rate, high pressure, or the presence of H2S. The SSV is used to quickly shut down the well upstream in the event of overpressure, failure, leakage in downstream equipment, or any other well emergency that requires an immediate shut down.SSV is remotely operated by an emergency shutdown device (ESD), which can be triggered automatically by high or low pressure pilot actuators. If an emergency occurs, this feature reduces the possibility of personnel injuries.A number of SSV models are available for different well conditions (pressure, temperature, and flow rate) and with various connections, such as hammer union or API-6A flanges.All SSVs are manufactured under Type Approval or Design Verification Review and provided with a Certificate of Conformity and full quality files.

Technical Parameters 

• Fail-safe remote activation and automatic well closure when pressure out of control occurs
• Double metal-to-metal seals for reliability in harsh environments
• Compliance with API-6A (PSL-3 , PR1), NACE MR-0175
• Working Pressure: 5,000psi ~ 15,000psi
• Temperature: P ~ U
• Bore Size: all common size
• Hydraulic actuator: 3,000 psi working pressure and 1/2" NPT
• Inlet and outlet connections: API 6A flange or hammer union