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AST 4010 / 4012

The AST-4010 / 4012 Aboveground Storage Tank (AST) Controller facilitates the transfer of fuel from a delivery truck to a single storage tank. This is accomplished through control of the site-mounted transfer pump. The fuel level in the AST is monitored to prevent overfilling of the tank.


Features: 

The AST-4010/4012 Controller provides overfill protection for Aboveground Storage Tanks which use a site-mounted, motor starter powered transfer pump.

  • Full flow transfer, no value restriction

  • High level warning

  • High level alarm operation prevents over filling

  • Meets Uniform Fire Code and NFPA Code 30 requirements

  • Single or manifolded dual tank overfill protection
Specifications: 

The following statements outline the operation of the AST-4010/4012 Controller. The start and stop switches are lever activated devices.

  • With power applied to the power mains, the controller is active and monitors for pump commands and fuel level signals.

  • 4012 only - The operator is responsible for the manual setting of the diverter values to their correct position for the proper transfer of fuel. The operator is also responsible for the manual setting of the level sensor selector switch to allow for correct monitoring of fuel levels.

  • While the fuel level is below the high level switch, moving the start switch will cause the pump to start. The pump will continue to run while the fuel level remains below the high level switch.

  • When the fuel level rises above the high level switch, the pump will automatically turn off and the alarm circuit will become active. This is a warning to the operator that final fuel transfer procedures should be initiated. Moving the stop switch will silence the alarm.

  • While fuel level is above the high level switch, but below the high alarm switch, the start switch will operate in the jog mode. The pump will run only while the operator continuously holds the start switch.

  • When the fuel level rises above the high alarm level, the pump will automatically turn off and no further transfer operation can be performed.

Downloads:
Contact Information:

For sales and service, please contact Vaporless Manufacturing, Inc. at 800-367-0185.

For other information please call Barrett Engineering at 707-725-9898.