Viking VFT - Section 4 - Material Transportation, Reception and Storage; Checks on the Bladder Tank at the Reception; Storage Recommendation before Installation

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
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SECTION 4 – MATERIAL TRANSPORTATION, RECEPTION AND STORAGE
4.1 Checks on the bladder tank at the reception
Bladder tanks manufactured by Viking are supplied on non stackable pallets suitable for inland (truck) transportation, if not
otherwise requested on the purchase order. This type of packaging is suitable to avoid damage to the equipment if handled correctly
during transit. Other types of packing can be provided on request (e.g. sea freight or for other expected severe handling conditions).
When received at the destination the bladder tank must be checked for signs of damage that may have occurred during
transportation and unloading operations. Damage to the pressure portion of the bladder tank, the tank’s shell, proportioning device
and interconnecting piping (if tted) - may result in liquid leaks, liquid spray jets or even structural failures. Such damage has to be
reported to Viking immediately for risk assessment.
Any other damage that, based on the judgment of the installer/end user, is supposed to potentially result in a failure or that may
affect the performance of the bladder tank must be promptly highlighted to Viking and rectied before the start-up according
to the manufacturer’s indications.
Viking is not responsible for damage due to equipment mishandling during the transportation, unloading and positioning stages
(Viking is responsible only when in charge for the transportation). Bladder tanks must be handled by skilled and authorized
personnel only who are competent in the planning and execution of such operations using appropriate lifting machinery. All
applicable Viking equipment is supplied with eyebolts which shall be used for lifting operations.
4.2 Storage recommendations before installation
The bladder tanks produced by Viking shall preferably be stored in a sheltered or indoor area before installation. The storage
temperature should not be outside the range of +5 °C; +30 °C for a prolonged period of time. This prescription is aimed to preserve
the bladder from an excessive thermal stress before he tank is lled with water and foam concentrate.
In case the storage temperature is above + 30 °C, either permanently or for a prolonged period of time (this may happen when the
bladder tank is stored outdoor under direct sun exposure or because of the ambient air temperature itself); the tank must be lled
with a suitable quantity of water to thermally insulate the bladder. This amount equals to 20% of the tank capacity inside the bladder
and 80% of the tank capacity outside of the bladder. This operation must be done to avoid overheating of the bladder at the regions
where contact with the tank’s metallic shell occurs as the circumstance may lead to bladder damage. In no scenario should the
temperature of the bladder be permanently above 30 °C.
To avoid bladder ruptures whilst lling the tank with water, always ensure that the net unbalanced pressure of the bladder does
not exceed 1 kPa (refer to section 7. for details). In case the storage temperature is below +5 °C but higher than -30 °C, either
permanently or for a prolonged period of time, the user has to ensure that the atmosphere in contact with the bladder is dry to avoid
icing - that may result in bladder damage.
For storage temperature below -30 °C, please contact Viking
WARNING
NOTICE