DANAIS Valves

The DANAIS is a flexible metal seated valve that provides tight shut off in LNG (Liquid Natural Gas) down to -425 Degrees F, LPG (Liquid Propane Gas) , high temperature gas, and various other hydrocarbon services.

The DANAIS valve utilizes a double offset disc design, coupled with a flexible metal seat design which provides an independent static and dynamic seal. Seat design allows for self-centering on the disc. The valve is capable of achieving tight shut off at cryogenic temperatures, bi-directional sealing, and is fire-safe.

The use of an all metal seat design, allows the valve to withstand a partial or full burn in a fire condition. The all metal seat design provides a fire safe seal, all the time; and is not dependent on fire intensity.

The DANAIS valve is especially well suited for the natural gas industry, and excels in LNG applications. Since 1963, more than 40 LNG receiving terminals and 23 liquefaction plants use AMRI DANAIS cryogenic butterfly valves.  Sixty percent of existing LNG tanker ships are equipped with AMRI DANAIS valves.

AMRI has a large in-house cryogenic test facility at our French production plant. The DANAIS valve can be tightness tested at cryogenic temperatures, per specific customer requirements.

Characteristics of the DANAIS valve are:

• -425F to +500F temperature range
• Class 150, 300 and 600
• Seat tightness in accordance with BS rate A, API-598, ISO rate A at ambient temperature, and BS 6364 at cryogenic temperature
• Fire safe tightness in accordance with BS 6755 part ll and API 6FA standards
• Wafer, lug, flanged, butt-weld side entry, and butt-weld top entry body styles
• Maintenance free stem packing design, requiring no adjustments
• Production sizes up to 66 inch (larger on request)

Danais Brochure