Dry seals for compressors and turbines require clean, dry gas to maintain seal integrity and ensure longevity. Gas seal support systems as specified in API-614 require filters and sometimes water-removing coalescers to ensure gas quality to the seals.
For critical seal gas filtration, the ideal arrangement is to have “duplex” filters. In the duplex configuration, there is always one filter on-line filtering and/or “drying” the gas, even when the other filter element is being replaced.
Dry Seal Gas Duplex Filters meeting API-614:
• Reduce cost by eliminating expensive stainless steel fittings and assembly time. Compact design saves space
• Simple duplex housing arrangement reduces possibility for incorrect operation and potential for shutting off the dry gas seal flow
• Zero-leak integral transfer valve and double block valves provide assurance of tight shut off when replacing elements
• 316 stainless steel materials
• ASME code construction
• Available with coalescing (liquid removal) and filter (particulate removal) cartridges
• Designs to 2600 PSI
