A Static-Pac seal prevents escape of high-pressure gas from the packing case assembly during and after compressor shutdown.
High-Pressure Gas Contained
Conventional rod rings unload during shutdown, permitting high-pressure gases to escape. A Static-Pac assembly activates upon shutdown, mechanically wedging a lip seal tightly against the piston rod. The flexible polymer seal conforms to the rod circumference, locking in high-pressure gas.
When activating pressure is released during compressor start-up, the Static-Pac seal lifts off the rod surface to allow free movement of the rod.
Static-Pac seals have demonstrated the ability to eliminate up to 96% of fugitive emissions. While results for any given compressor will vary based on operating conditions and other variables, the payback for a Static-Pac seal is typically less than three years, and it will pay for itself many times over.
Volatile and explosive emissions can accumulate and create health and safety hazards. Static-Pac seals remove the pressure from ventilation systems, providing an extra layer of safety for the plant and personnel.
A study by the U.S. Environmental Protection Agency/Gas Research Institute concluded that 21% of all gas emissions within the natural gas industry come from reciprocating compressors. Static-Pac seals can play a major role in reducing the release of greenhouse and other gases into the environment.
Static-Pac seals can be retrofit to most gas compressor packing case assemblies and easily adapt to a wide range of compressor operating conditions. The assembly replaces one or two cups in the low-pressure side of the rod packing case.
- Rapid payback with long-term savings
- Locks in valuable gases
- Improves safety
- Enhances environmental compliance
- Long service life
- Reduces downtime
- Retrofits to most packing cases
- No special maintenance required