Neptune™ Series Nitrogen-Charged Subsurface Safety Valve

Application

The Neptune™ Series Nitrogen-Charged Tubing-Retrievable Surface-Controlled Subsurface Safety Valve is designed for completions requiring low operating pressures due to control system limitations.

Advantages

• Two independently operating systems offer redundancy to maintain dependable valve operation
• Uses the same moving parts of a conventional TRSV
• Patented fail-safe operating system ensures fail-safe operation in all applications
• Innovative nonelastomeric seal technology is an industry first for nitrogen-charged valves
• Operating system is free of ball check seats, which virtually eliminates failure due to control line debris
• Low operating pressure at any setting depth reduces operating system investment
• Optional integral control line filter provides clean and trouble-free operation
• Two-step, metal-to-metal RBT Housing Seals provide strength and sealing under the harshest conditions

Additional Information

The Neptune operating system contains many patented features that provide simple, reliable, and fail-safe operation in the most critical applications. The Neptune Series incorporates integral nitrogen-charged systems within the valve, which oppose the hydrostatic pressure acting on top of the piston. The dynamic seal configuration used for the operating piston is a significant engineering achievement that uses the industry's first nonelastomeric seal technology for nitrogen-charged safety valves. Unlike other nitrogen-charged designs, the Neptune Series' patented operating system is designed to be fail-safe closed in all applications even if the primary nitrogen chamber pressure is lost. The operating system is also far less susceptible to failing due to debris in the control line or hysteresis as all ball check seats, Belleville washers, and collets have been eliminated.

The Neptune Series comes standard with two totally independent operating systems and an integral control line filter. These features deliver the redundancy and assurance required in remote subsea wells. When it comes to your critical applications, the Neptune's innovative design and simple operation make it the only logical choice to protect your investment.