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4" MODEL G-4000P
TECHNICAL DATA
DOUBLE INTERLOCK PREACTION
WITH ELECTRIC/PNEUMATIC 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
5. OPERATION
A. In the Set position:
When air pressure is introduced into the sprinkler piping, the sensing end of the pneumatic actuator is pressurized. This closes
the pneumatic actuator. The closed pneumatic actuator, and the normally closed solenoid valve prevent prime water from escap-
ing the prime chamber of the G-4000P Valve. When prime water enters the prime chamber, the rolling diaphragm is pressurized,
causing it to expand downward onto the water seat.
Figure 6 - Set Position
Form No. F_112008
18.10.25
P65
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