Automatic drain valve is used to drain off any water in a standpipe system as a trim component for dry pipe, deluge and preaction valves, or for use between the fire department connection (FDC) and a check valve.
Available size
| Size | Application | Auto to close position | Working pressure (psi) | Ref. No. |
|---|---|---|---|---|
| 1/2″ NPT | Trim component of main valve | 2-10 psi | 250 | VC3901 (UL) |
| 1/2″ NPT | Between FDC and check | 7 psi | 175 | VC3902 (UL/FM) |
Note: Note: For VC3901, it is a part of main valve such as dry pipe valve, deluge valve or preaction valve.
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