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PTC’s HSASTM and MSASTM fail-safe close wellhead annulus barrier valves are the only integrity-valve solutions that delivers independent double barrier integrity. The HSASTMmitigates the risk of uncontrolled release of annular content from leaks or accidents.
The Hydraulic Surface Annulus Safety (HSASTM) is installed in the wellhead VR profile, where (in wells with SAP) it becomes an independently testable element of the primary barrier envelope.
Some of the features:
- Hydraulically operated fail-safe close barrier valve
- Unless hydraulic pressure is applied the valve seals in both directions
- Easy pressure testing of the primary and secondary seal (and adjacent gate valve)
- more...
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