ASME Pressure Vessels and Water Storage Tanks - page 13

• 13
Fittings, Piping and Manways
Fittings and flanges enable connection
to external piping systems. Water and
wastewater storage tanks can be fitted
with standard or customized internal
piping including internal elbows, vortex
breakers, sumps or bottom drains.
Cylindrical or large rectangular
manways of 24" diameter or larger,
allow for safe, convenient access for
inspection and maintenance from
above.
Factory Testing
A 5 psi factory air test and seam
inspection is conducted on every
storage tank. Double-wall storage
tanks are shipped with a vacuum on
the interstice for continuous testing to
guarantee integrity of both the primary
and secondary tanks.
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