Raven AccuFlow Vortex, Installation And Operation Manual

Page: 15 / 98

CHAPTER
2
Introduction: Overview 11
CHAPTER 2
INTRODUCTION
OVERVIEW
The Raven AccuFlow Vortex and HP+ system are designed to provide continuous and automatic control of
anhydrous ammonia (NH
3
) applications via a Raven control system. The rate of application is monitored via a flow
meter and controlled by the Raven controller and control valve(s). The operator sets the target application rate in
the Raven controller and the system automatically adjusts for vehicle speed and section status changes.
NOTE: To properly measure and control application, anhydrous ammonia must be in a liquid state when it
passes through the flow meter. To remain liquid, anhydrous ammonia must be stored at a
temperature of -28° F [-33° C] or kept under pressure at higher temperatures. To help ensure that the
ammonia is in a liquid state as it passes through the flow meter the AccuFlow Vortex cooler uses a
small amount of anhydrous ammonia from the system to reduce the temperature of the ammonia
being applied.
The Raven AccuFlow Vortex system is available in two configurations to match the NH
3
application needs:
• AccuFlow Vortex System
• AccuFlow HP+ High Performance System
ACCUFLOW™ VORTEX AND ACCUFLOW™ HP+ SYSTEMS
The AccuFlow Vortex system is available in one or two valve configurations with a single Vortex cooler. The system
is capable of applying anhydrous ammonia at rates up to 50 gallons per minute.
The AccuFlow HP+ system uses a boost pump to enhance the performance of the standard AccuFlow Vortex
system to apply anhydrous ammonia in colder ambient temperatures, at higher rates, and at increased speeds.
NOTE: System capacity will vary based upon ambient conditions and plumbing configurations of the overall
system. Refer to the following Table 2 on page 12 for recommended best practices to achieve the
specifications listed. For additional assistance, contact a local Raven dealer for more information.
NOTE: Tank levels less than 25% will also reduce capacity.