Ball valve AD-1

manualdrainfor water

The TYCO Model AD-1 Automatic Drain Valve is designed for use with TYCO Dry Pipe, Deluge, and Preaction Valves. Provided as a trim component for these valves, the Model AD-1 utomatic Drain Valve is used to automatically drain the normally dry alarm lines. In operation, the Model AD-1 Drain Valve is normally open to atmosphere to provide a visual indication of properly set water and/or air seats within the dry pipe, deluge, or preaction valve. The Model AD-1 Automatic Drain Valve is a direct replacement for the Central Model AD, Gem Model F793, and Star Model S410 drain valves. The Model AD-1 Automatic Drain Valve described herein must be installed and maintained in compliance with this document, and with the applicable standards of the NATIONAL FIRE PROTECTION ASSOCIATION (NFPA), in addition to the standards of any authorities having jurisdiction. Failure to do so may impair the integrity of this device. The owner is responsible for maintaining their fire protection system and devices in proper operating condition. Contact the installing contractor or product manufacturer with any questions. Operation The Model AD-1 Automatic Drain Valve is normally open to atmosphere. In the open position, it maintains the alarm line trim of dry pipe, deluge, or preaction valves at 0 psig until the system operates. When the Model AD-1 Automatic Drain Valve is in the normal open position, this valve provides a visual indication that water and/or air seats within the dry pipe, deluge, or preaction valve are properly set. Leakage or discharge from the Model AD-1 Automatic Drain Valve provides an indication of a problem requiring correction within the dry pipe, preaction, or deluge valve.