Operation - Viking G-2000 Technical Data Manual

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9. Verify that no water flows from the drip check when the plunger is pushed.
10. When the priming pressure has been verified as being established, slowly open the water supply control valve.
11. When flow is developed from the flow test valve, CLOSE the flow test valve.
12. Fully open the water supply main control valve.
13. Secure all valves in their normal operating position.
14. Notify Authorities Having Jurisdiction and those in the affected area that the system is in service.
15. The system is now fully operational.
H. operational Test:
An operational test shall be performed on the system in accordance with NFPA 13 as follows:
1. Open the inspector's test connection.
2. Record the time to trip the valve.
3. Record the time for water delivery to the inspector's test connection.

5. oPErATIoN

A. In the Set Position:
When air pressure is introduced into the sprinkler piping, the sensing end of the differential valve is pressurized. This closes the
differential valve, preventing prime water from escaping the prime chamber of the dry pipe valve. When prime water enters the
prime chamber, the rolling diaphragm is pressurized, causing it to expand downward onto the water seat.
Form No. F_011110 17.04.27 Rev 17.1
TECHNICAL DATA
The viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Figure 6 - Set Position
2" MoDEL G-2000 Dry vALvE
rISEr ASSEMBLy
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