1. The valve is used in wet pipe sprinkler which is made in accordance with UL260.
2. Dry pipe and deluge valve for fire-protection service.
1. AVD 501C 2 flanged horizontal pattern.
2. AVD 5001D2 thread horizontal pattern.
3. Material cast iron ASTM A48 class NO35.
4. Rated pressure 175psi test pressure 350psi.
5. Marking UL LISTED 2S57 2 deluge valve.