TECHNICAL DATA
MODEL VXD SINGLE-
INTERLOCKED PREACTION
SYSTEM WITH ELECTRIC
RELEASE
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com
Page 3 of 13
Form No. F_051820 21.01.01 Rev 21.1
5. SYSTEM OPERATION
5.1 In the SET condition:
System water supply pressure enters the priming chamber of the deluge valve through the priming line, which includes a
normally open priming valve (A), strainer (B), restricted orifice (not shown), check valve (C) and also stops at the inlet of the
normally closed PORV (D). In the SET condition, water supply pressure is trapped in the priming chamber by check valve (C),
normally closed solenoid valve (E), and the emergency release (F). The pressure in the priming chamber holds the Deluge
Valve diaphragm closed, keeping the outlet chamber and system piping dry.
A
F
D
Supply
Prime
E
B
C
Figure 2: Operational Components
To Next Page
Loading...
