Pre-action valve sets are used for water/foam systems with automatic sprinklers. The are
design to open only after the operation of the detection device only.
They can be activated by hydraulic, electrical or manual means.
After activation, an acoustic alarm is set off by hydraulically operated water alarm gong or an electric alarm is transmitted by pressure switch.
An additional alarm can be transferred to a permanently manned local.
Technical Details
Manufacturer: Viking
Valve Type : Hydraulically operated quick opening differential type
Nominal Diameter : 2" / DN50 , 3" / DN80 , 4" / DN100 , 6" / DN150 , 8" / DN200
Flange Connection : ANSI B16.5 Class 150 / DIN ISO in accordance with DIN EN 1092
Grooved Connection : Metric, AWWA C606 Standard
Installation Position : Vertical
Medium : Fresh Water / Foam Water Mixture
Operation Temperature : 4 C / 39 F - 60 C / 140 F
Alarm : Alarm pressure switch with changeover contact 1 normally open contact, 1 normally closed contact; see chapter 4.8.1 & 4.8.2
Automatic Drain Valve : K2-K20
Actuating : Electric 24 VDC 2/2-way solenoid valve / hydraulic (sprinkler) activation / manually operated
Valve Approvals : *FM, cULus Listed
Documents and Resources
Technical Data Sheets:
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