Wet pipe system with alarm check valve, dry pipe, preaction, or deluge valve |
Single (One set of SPDT) / Double (Two sets of SPDT) |
4 ~ 20 psi, or 4 ~ 15 psi |
4 ~ 8 psi |
V8601 |
Dry pipe system, preaction, pressure tank, air and water supply |
Single (One set of SPDT) / Double (Two sets of SPDT) |
10 ~ 100 psi, or 10 ~ 60 psi |
Operates on increase 50 psi and on decrease at 30 psi |
V8604 |
Wet pip system with excess pressure, pressure tank, air and water supply |
Single (One set of SPDT) / Double (Two sets of SPDT) |
10 ~ 200 psi, or 25 ~ 225 psi |
Operates on increase 130 psi and on decrease at 110 psi |
V8612 |