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TECHNICAL DATA

3” MODEL G-3000P 

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: [email protected]

Page 9 of 12

Form No. F_011610      18.10.25    P65

5.  Remove the 10 cover screws (8).

6.  The cover (9) and trim that is still connected may now be removed from the valve body. (It may be necessary to pry the valve 

open as the diaphragm may bond itself to the cover (9) and body over time.)

C.   Removing / Replacing the Check Diaphragm: 

(Refer to Figure 11)

1.  The check diaphragm (7) may be lifted from the valve body (1).

2.  If necessary, replace the check diaphragm (7).

D.   Inspecting the Prime Chamber and Coupling for leaks: 

(Refer to Figure 11)

If desired, it is possible to set the G-3000P Valve and inspect for leaks with the cover (9) removed.

1.  Slowly open the prime valve.

2.  With prime water established, partially open the main water supply control valve.

3.  Visually inspect the inside of the G-3000P Valve for leaks. 

E.   Removing / Replacing the Prime Coupling: 

(Refer to Figure 11)

1.  Open the 1/2” union on the prime line. 

2.  Using a wrench on the flats of the coupling (6), remove the coupling (6) from the valve body (1).

3.  Inspect  the  coupling  (6)  and  O-rings  (5).  Replace  if  necessary,

 

using  the  instructions  in  O-Ring  Replacement  Bulletin  F_

120611.

F.   Removing / Replacing the Prime Chamber Assembly: 

(Refer to Figure 11)

1.  The prime chamber assembly (4) is now held in place by two flanges on the outside diameter of the assembly. Slide the prime 

chamber assembly (4) toward the prime line and remove from the body. 

2.  Inspect and replace if necessary. 

3.  Inspect the seat. The seat should be clean and free of foreign material. If the seat is damaged, the G-3000P Valve must be 

replaced.  

G.   Re-Assembling the Valve: 

(Refer to Figure 11)

1.  Place the prime chamber assembly (4) in the valve body (1). Make sure the two flanges are positioned in the groove.

2.  Thread the prime coupling (6) into the valve body (1). Make sure the end of the prime coupling (6) is inserted into the prime 

chamber assembly (4).

3.  Lay the check diaphragm (8) into the valve body (1).

4.  Position the cover (9) onto the valve body (1), and install and tighten the 10 cover screws (8).

5.  Re-install any trim that was removed.

6.  Place the valve in service by following the steps in Section 4.F.

8. AVAILABILITY

The Viking Model G-3000P Valve is available through a network of domestic and international distributors. See the Viking Corp. Web 

site for closest distributor or contact The Viking Corporation.

Summary of Contents for G-3000P

Page 1: ...the system piping network The entire sprinkler system fills with water Double interlock electric pneumatic release preaction systems are commonly used in cold storage applications and other areas where it is important to control accidental water dis charge due to inadvertent damage to the sprinkler piping 2 LISTING AND APPROVALS cULus Listed VLFT FM Approved Refrigerated Area Sprinkler Systems 3 T...

Page 2: ...ECTRIC 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 Page 2 of 12 Form No F_011610 18 10 25 P65 Figure 1 Air Supply Options ...

Page 3: ...of the most common are 122 Cu Ft at 1 900 PSI 3 455 L at 131 bar 225 Cu Ft at 2 100 PSI 6 372 L at 145 bar and 280 Cu Ft at 2 300 PSI 7 930 L at 159 bar When nitrogen cylinders are used as a primary air supply spare cylinders should be furnished and located at the valve location To determine the approximate amount of nitrogen to be furnished the following formula may be used Table 1 Pipe Capacity ...

Page 4: ...Supply Installation 1 Install the required air supply as described in section 4 B The size of the compressor and amount of air required should be determined in accordance with Tables 1 2 3 The air or nitrogen supply to the preaction system must be clean dry and oil free 2 Automatic air supplies must be regulated restricted and from a continuous source A Viking Air Maintenance Device should be inst...

Page 5: ...sing the valve Verify prime pressure has been established on the prime pressure gauge 8 Establish air pressure on the system 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 op...

Page 6: ... 18 10 25 P65 Figure 6 Set Position 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 3000P Valve When prime water enters the prime cha...

Page 7: ...point the prime water is still held in the prime chamber by the closed pneumatic actuator When a sprinkler operates air pressure is lost on the sensing end of the pneumatic actuator causing the pneumatic actuator to open With both the pneumatic actuator and solenoid valve open prime water is drained from the prime chamber causing the G 3000P Valve to open filling the sprinkler piping with water Wa...

Page 8: ...ory pressure to be maintained Refer to section 4 INSTALLATION 6 Reset the system release control panel Alarms should stop When testing is complete return the system to service following steps 1 through 8 below B Full Flow Trip Test Refer to Figure 5 Performance of a trip test is recommended annually during warm weather Consider coordinating this test with operation testing of the detectors CAUTION...

Page 9: ...lats of the coupling 6 remove the coupling 6 from the valve body 1 3 Inspect the coupling 6 and O rings 5 Replace if necessary using the instructions in O Ring Replacement Bulletin F_ 120611 F Removing Replacing the Prime Chamber Assembly Refer to Figure 11 1 The prime chamber assembly 4 is now held in place by two flanges on the outside diameter of the assembly Slide the prime chamber assembly 4 ...

Page 10: ...orm No F_011610 18 10 25 P65 Figure 9 Optional Accessories Accessories 08055 Model E 1 Accelerator 14800 Model LD 1 Anti Column Device 16212 Drain Manifold Figure 8 16191 1 Assembly Part Number 16191 1 1 Model G 3000P Valve 1 Model G 3000P Double Interlock Electric Pneumatic Release Trim Includes NC Solenoid Pneumatic Actuator 1 12 Section of Schedule 10 Pipe and Coupling 1 Air Pressure Supervisor...

Page 11: ...RIC 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 Page 11 of 12 Form No F_011610 18 10 25 P65 Figure 10 Installation Dimensions ...

Page 12: ...pper or UNS S30400 Stainless Steel 1 3 Anaerobic Adhesive 1 4 16075 Prime Chamber Assembly Brass EPDM Nitrile 304 Stainless Steel Bronze Alloy 1 5 O Rings EPDM and Nitrile 2 or 3 6 16074 Coupling UNS S17400 Stainless Steel 1 7 15941 Check Diaphragm EPDM 1 8 08081 1 2 13 x 1 1 4 HHS UNS S30400 Stainless Steel 10 9 Cover 65 45 12 Ductile Iron 1 10 Data Plate Aluminum 2 11 Tack Alloy Carbon Steel 4 R...

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