Viking VFT - Before the Rst Lling

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 16 of 35
7.2 Before the rst lling
Before the lling operations can take place the installer/end user has to make sure that:
1. The installation of the bladder tank and the assembling to the owner’s system have been accomplished according to the design
documents, applicable standards and good engineering practice.
2. All the threads, anges and grooved ttings are tightened to the recommended values.
3. The safety devices have been properly selected and installed to preserve the bladder tank from overpressure.
4. The Concentrate Control Valve (if present) and relevant trim is properly connected. Please make reference to the CCV manual
for the connection of the trim to the system.
5. All the connecting piping has been thoroughly ushed to avoid debris getting into the bladder tank, proportioning device and
CCV trim (if present).
6. Instrumentation, such as the pressure gauges and the level indicator (10), are not damaged.
7. The safety valve seal is unimpaired.
8. The bladder tank is securely xed to the ground.
9. The bolts at the top and bottom anges holding the bladder are tightened at the design torque value (see Paragraph 10.4)
The bladder tank lling relies on a procedure which requires the use of some SPECIAL TOOLS. The following devices
MUST BE procured by the installer/user before the lling operation:
a) the lling device (gure 3.3.1, supplied as an optional by Viking) or an equivalent assembly with a 0-6 kPa range pressure
gauge;
b) Qty 1 x 25mm non-collapsible pick-up hose to t the lling pump. Length to cover the distance from the foam concentrate
containers. (The hose is supplied optionally by Viking with the manual lling pump).
c) Qty 1 x 25mm BSP male thread connection non-collapsible delivery hose to t the lling pump Length to cover the distance to
the bladder tank ll valve. (The hose is supplied optional by Viking with the manual lling pump).
d) Qty 1 water/concentrate lling pump (manual or electrical type). In case of an electrical pump the maximum recommended
owrate, to avoid excessive stress to the bladder, is 100 l/min. These pumps are supplied by Viking as an option.
e) Air compressor if a compressed air service is not available. In both cases the maximum recommended air owrate is
100 l/min and a suitable regulating device must be installed to prevent overpressure
NOTICE