Tank Handling, Installation & Use Guidelines
Although Chemtainer's tanks are extremely durable, improper handling and
installation can result in damage to tank, fittings, and accessories. Failure
to comply with handling and installation instructions voids all warranties.
1. At delivery, inspect your tank immediately for defects or shipping damage.
Any discrepancies, or product problems, should be noted on both the driver's
bill of lading and your packing list.
2. When unloading your tank from the delivery truck, avoid its contact with
sharp objects. Forklift blades can cause significant damage if proper
precautions are not taken. Do not allow tanks to be rolled over on the
fittings. Large bulk storage tanks, whenever possible, should be removed from
truck bed by use of a crane or other suitable lifting device. OSHA regulation
29CFR 1910.178 through 1910.189 addresses specific standards for hoisting and
lifting. Keep unloading area free of rocks, sharp objects, and other materials
that could damage the tank. If tank is unloaded on it's side, carefully brace
to prevent rolling.
3. Support bottom of tank firmly and completely. Concrete pads provide the best
foundation. The pad should be clean, smooth, and level so it fully supports the entire tank bottom with no deflection. However, when seismic and wind factors are not being considered,
tanks with a base load bearing of less than 800 pounds per square foot require
a firm, even, compacted bed of sand, pea gravel, or fine soil that won't wash
away. Tanks with a base load bearing of 800 pounds per square foot, or greater,
require a reinforced concrete base. Steel support stands concentrate the loaded
tank weight onto the stand leg pads. It is recommended that stands are mounted
on a concrete base. Bolting of stands is necessary to prevent movement due to
agitation, wind, seismic loads and accidental contact.
4. Install tanks in an area that is accessible. Ease of maintenance and removal
should be considered.
5. Test by filling tank with water prior to use, to prevent material loss
through unsecured fittings, shipping damage, or manufacturing defects. Tanks
should be tested for a minimum 5 hours.
6. Plastic screw on bulkhead fittings are designed to be hand tightened.
Overtightening can cause fittings to leak.
7. Support sides of rectangular tanks. In general, tanks with heights greater
than 18" must be supported. However, specific applications must be considered:
smaller tanks with contents that have high specific gravity and/or elevated
temperatures must be supported.
8. Do not mount heavy equipment on tank sides.
9. Do not allow weight on tank fittings. Fully support pipes and valves.
10. Use expansion joints to prevent damage at fittings from the differential
expansion and contraction of the piping and tanks.
11. Tanks are designed for use only in the atmospheric storage of chemicals,
never for vacuum or pressure applications.
12. Immersion heaters should never touch the walls of the tank. Minimum spacing
should be 3" - 4" from wall.
13. Refer to the chemical capability chart on this site as a guide. Be certain
tank, fittings, and fitting gasket material are compatible with chemicals at
the anticipated operating temperatures. Contact our technical staff for
information on chemicals not listed, or when uncertain conditions exist.
14. Protect tanks from impact, especially at temperatures below 40 degrees F.
15. Confined spaces must be considered hazardous. Do not enter tank without
first taking proper precautions.
16. Tank sizes as listed are nominal and calibrations on molded tanks are only
approximates, but provide an indication of volume. Polyethylene tanks expand
and contract which will effect volume. The degree in which this occurs depends
on the size of the tanks, wall thickness, specific gravity of contents,
temperature of contents and ambient temperatures.