Air pressure maintenance equipment Model D-2
.gif "Thiết bị bảo trì áp suất không khí (Model D-2), Thiết bị pccc Viking")
Air pressure maintenance device (Model D-2) is a part of viking fire valve
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Detailed description Air pressure maintenance device (Model D-2)
The Viking Model D-2 Air Pressure Maintainer is a pressure regulator that reduces the supply air pressure to a preset requirement when connected to a continuously maintained air supply.
Standard List of Air Pressure Maintenance Equipment (Model D-2)
- UL listed: VIOT
- ULc Listed: VIOTC
- FM Approved: Pressure Maintenance Devices
- New York City Board of Standards and Appeals: Calendar No. 219-76-SA
- VdS Approved
Description of technical information Air pressure maintenance device (Model D-2) A. Replacement air filter. B. Ball check to prevent backflow C. Limit 1/16 Ring (1.59 mm) to prevent rapid suppression of a system D. 1/4 1/4 (8 mm) tap in and out. E. Minimum recommended ambient temperature: 40°F (4°C .)
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