Taylor-Wharton High Capacity GST Storage Tanks User Manual

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Try to determine the source of leakage in cases where the VACUUM JACKET LIFT PLATE has
not functioned, visually inspect the following areas in the order in which they are listed:

VACUUM PROBE,

VACUUM PROBE ISOLATION VALVE,

VACUUM PUMPOUT VALVE,

Sealed insulation ports (on top of the tank),

VACUUM JACKET LIFTPLATE,

All liquid and gas phase lines exit points through vacuum jacket,

Any area of the vacuum jacket that might have been exposed to cryogenic liquid
spray or temperatures.

Look for signs of damage, corrosion, or damaged valves, and other abnormal conditions. Contact
the factory for repair and re-evacuation procedures.

PAINTING

If repainting of the vessel is required, be sure to use materials that are compatible with the factory-
applied finish. The vessel was originally painted with the following materials:

Primer:

Gavlon 8198 Zinc Rich Epoxy Polyamide/adduct

5-6 dry mils thick

Finish Coat:

Gavlon HS350 Modified Acrylic Urethane, Gloss White

2-3 dry mils thick

SAFETY PRECAUTIONS PERTAINING TO PAINTING OPERATIONS

All paint components contain volatile solvents, mainly petroleum distillates, alcohols, and/or
xylene. Normal precautions for flammable materials should be observed including exclusion of
heat, sparks, and open flame. Containers should be grounded before painting.

All the ingredients present physiological hazards both from inhalation and absorption through the
skin. Breathing of the vapor and spray mist must be avoided. Protective clothing including rubber
gloves must be worn. Allergy-prone individuals may be sensitized and should not be exposed to
isocyanates.

Good industrial hygiene practice must be observed including thorough washing before eating or
smoking.