Semi-Annual Maintenance; Valve Reassembly - Viking F-1 Technical Data Manual

May 7, 2014
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
b. Semi-Annual Maintenance:
1. Remove the system from service. (Refer to Deluge or Preaction System Data that describes systems with the release system
used for additional information.)
a. Close the Main Water Supply Control Valve (D.1) and Priming Valve (B.1).
b. Open the Auxiliary Drain Valve (B.13).
c. Relieve pressure in the priming chamber by opening the Emergency Release Valve (B.9).
2. Inspect all trim for signs of corrosion and/or blockage. Clean and/or replace as required.
3. Clean and/or replace all strainer screens (including B.2).
4. Refer to Item 4-B, INSTALLATION: PLACING THE VALVE IN SERVICE.
C. Every Fifth year
1. Internal inspection of Deluge Valves is recommended every five years unless inspections and tests indicate more frequent internal
inspections are required. Refer to DISASSEMBLY instructions provided below.
2. Internal inspection of strainers and restricted orifices is recommended every five years unless inspections and tests indicate more
frequent internal inspections are required.
3. Record and provide notification of inspection results as required by the Authority Having Jurisdiction.
D. Valve Disassembly
1. Remove the valve from service (see the release system description and Technical Data for additional information). Close the main
control valve and open the main drain valve. Release the pressure in the priming chamber by opening the Emergency Release
Valve.
2. Remove trim as required to allow removal of cover (4).
3. Remove screws (9).
4. Lift cover (4) from body (1).
5. Remove clapper assembly (No. 3, 5, 6, 7, 9, 10, 11) by lifting it from the body (1).
6. Inspect seat (2). If replacement is necessary, remove screws (12). Remove old seat (2) and o-ring (13). Replace with new seat
(2) and o-ring (13). Replace screws (12).
7. To replace the diaphragm rubber (6), remove the circle of screws (10). Remove the clamp ring (3) and remove the diaphragm
rubber (6).
8. To replace the seat rubber assembly (7), clapper assembly (3, 5, 6, 7, 9, 10, 11) must be removed from the valve. Remove the
circle of screws (12). Seat rubber assembly (7) can be removed.
NoTE: PrIor To INSTALLINg A NEw CLAPPEr rubbEr (6) or SEAT rubbEr ASSEMbLy (7), MAkE CErTAIN THAT ALL Sur-
FACES ArE CLEAN AND FrEE oF ForEIgN MATTEr. THE PLATED SEAT (2) MuST bE SMooTH AND FrEE oF NICkS, burrS or
INDENTATIoNS.
E. Valve reassembly
1. Prior to reassembly, flush the valve of all foreign matter.
2. To reassemble, reverse disassembly procedure.
7. AVAILAbILITy
The Viking Model F-1 Deluge 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.
8. guArANTEES
For details of warranty, refer to Viking's current list price schedule or contact Viking directly.
TECHNICAL DATA
(Refer to Figure 2)
Deluge Valves 218g
DELugE VALVE, MoDEL F-1
STrAIgHT THrougH STyLE
2-1/2" (DN65) - 8" (DN200)