Advertisement
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
6
INSPECTIONS AND MAINTENANCE
NOTICE
The owner is responsible for maintaining the fire protection system and devices in proper operating condition. The
Deluge Valve must be kept from freezing conditions and physical damage that could impair its operation.
WARNING
Any system maintenance which involves placing a control valve or detection system out of service may eliminate the
Fire Protection capabilities of that system. Prior to proceeding, notify all Authorities Having Jurisdiction. Consideration
should be given to employment of a Fire Patrol in the affected areas.
Inspection
It is imperative that the system be inspected and tested on a regular basis. The frequency of the inspections may vary due to con-
taminated water supplies, corrosive water supplies or corrosive atmospheres. Also, the alarm devices, detection systems or other
connected trim may require a more frequent schedule. For minimum maintenance and inspection requirements, refer to NFPA 25.
In addition, the Authority Having Jurisdiction may have additional maintenance, testing, and inspection requirements which must be
followed. The following recommendations are minimum requirements.
Replacing the Diaphragm (disassembling the valve). Refer to Figure 4.
1. Remove the valve from service (refer to the system documentation). Close the main control valve, 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 (1).
3. Remove the bolts and washers as necessary.
4. Pull the cover (1) away from body (3).
NOTE:
4" through 10" valves include 2 studs; the cover must be pulled off the studs carefully to avoid damage to
the threads.
5. Lift and remove diaphragm assembly (2) including the V-ring if present.
NOTE:
Do not over-torque the bolts when installing the gasket. Over-tightening can damage the gasket.
6. To replace the diaphragm (and V-ring, if present), remove from the body of the valve and install the replacement.
7. Clean all parts and surfaces and reassemble the valve.
7
AVAILABILITY
The Viking Model VXD Deluge Valve and accessories are available through a network of Domestic, Canadian, and International
Distributors. See the Viking Corporation Web site for your 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.
Refer to Table 5 for
Torque Specifications
Form No. F_012120 21.10.163 Rev 21.1
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
1
Figure 4: Replacing the Diaphragm
2
DELUGE VALVE
MODEL VXD
3
Page 5 of 13
Advertisement
