BLADDER TANK MODEL VFT & FT
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL
(
foam concentrate inside the bladder
)
TECHNICAL
MANUAL
F_032216 16.1 | TM1.3.1.1/14032016/en
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
VISIT THE VIKING WEBSITE FOR THE LATEST EDITION OF THIS TECHNICAL MANUAL
Page 28 of 35
10.3 Maintenance schedule
Viking recommend, as a minimum, to implement a maintenance program as indicated in the table below:
Local regulations may require activities exceeding those stipulated in table 10.3.1 (for instance, mandatory periodic qualication
of the pressure vessel). It is full responsibility of the end user to be informed of these requirements and to put in place all the
necessary activities.
Table 10.3.1: Recommended maintenance schedule
No. Activity Start Up Monthly 6 Monthly Annually 5 Yearly Procedure
1 Check of foam concentrate level
ü ü
Section 9
2 Check of bladder integrity
ü ü
Section 10.5
3
Visual check of paint work
Check of external surface(s)
Visual check of welding (external)
ü ü
4
Check of anged connections
bolts tightening torque
ü ü
5
Check of bladder top and bottom
anges: bolts tightening torque
ü ü
Section 10.4
6
CCV (if any) “white test” (opening
without foam discharge to the system)
ü ü
Refer to CCV manual
7 Manual valves opening/closing
ü ü
8 Foam concentrate sampling & analysis
ü
9
Thermal relief valve operation
(valve removed from tank and tested)
ü
10 Flow test of the bladder tank system
ü
As per local regulation
11 Valves: greasing of moving parts
ü
12 Visual check of internal tank shell
ü
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