Taylor-Wharton VJ Bulk Tank - Manual (Page 8)

INSTALLATION
HANDLING
Tank installation is the customer's responsibility. The tank is shipped in the horizontal position and
secured on wooden cradles. These cradles must be removed prior to erection of the tank. Make
certain the foundation used for the tank is designed for the conditions at the installation site, and that
it is suitable for the tank weight. Refer to local codes for recommended foundation specifications.
Employ experienced personnel to move and install the tank. Ensure that rigging equipment has
adequate rated capacity to handle the tank weight listed in the specifications. This tank must be
shipped and lifted empty, and with a warm inner vessel.
CAUTION: To prevent possible tip over, do not leave the tank standing upright unless it is on a
specified foundation or other hard surface capable of supporting its weight. Loading
on the tank legs is great enough to cause them to sink into most surfaces other than
reinforced concrete.
INSTALLATION CHECKS
Before erecting the tank, inspect it carefully for possible shipping damage. Report any damage to the
carrier and the factory. In addition, check tank pressure and vacuum as follows:
1.
Tanks are shipped pressurized with nitrogen gas at 20 psig (1.4 bar/138 kPa). Open the gauge
ISOLATION VALVE (V-5) and read tank pressure indicated on the PRESSURE GAUGE
(PI). Record the "as received" tank pressure. Close the ISOLATION VALVE (V-5). Tank
pressure may change due to temperature variations, accidental opening of valves, packing
leaks, or minor leaks at the fill connections. If a positive pressure is not indicated on the
PRESSURE GAUGE (PI) and no repairable leaks are found, contact the factory in accordance
with conditions specified in the tank warranty.
2.
Check insulation space vacuum by connecting a Hasting-Raydist Model TV-4A or VT-6
vacuum gauge to the tank VACUUM GAUGE TUBE. Open the tank VACUUM GAUGE
VALVE (V-3), wait 30 minutes, and take a reading. If the "as received" vacuum (tank at
ambient temperature) is greater than 100 microns (0.10 mm Hg) absolute, contact the factory
3.
Remove shipping screws from all LIQUID LEVEL GAUGES that are equipped with
adjustable level switches.
4.
Attach a tag to the tank PRESSURE GAUGE (PI) indicating the normal operating pressure
range of the tank. This information enables an operator to monitor tank pressure during a tank
fill, and to prevent pressure upsets caused by improper fill procedures.
CUSTOMER INSTALLED EQUIPMENT/PIPING
External piping may employ carbon steel or stainless steel pipe. Liquid lines should be insulated with
several inches of polyurethane insulation.
When installing vaporizing and control equipment, be sure to follow accepted design practices for
your gas service. Be sure to include pressure relief valves in piping where liquid product could be
trapped between closed valves, regulators, etc.
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