ASME Pressure Vessels and Water Storage Tanks - page 43

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Pre-Engineered Design Options
Hydropneumatic Tanks (HPT)
A vessel for storing water prior to
distribution in a water supply system,
whereby the water system pressure
is maintained between specified
pressure ranges (also called ASME
pressure vessels).
Elliptical Manways
Outlet
Flange
Couplings
Fire Protection Tanks (FPT)
ASME pressure vessel used solely as
a water supply to automatic sprinkler
systems. Vessels are designed and
installed in accordance with NFPA
Standard No. 22, "Water Tanks for
Private Fire Protection." A sprinkler
system secondary water supply may
have duration of 30 minutes.
Manway
Sight Glass
Connections
Outlet
Flange
Weld-on Anodes
as required
Inlet
Flange
Chlorine Contact Tanks (CCT)
A vessel that provides sufficient time
for chlorine to achieve full disinfection
before the water enters the distribution
network. Required chlorine contact
time is usually 30 minutes (CT = 30
mg-min/L).
Perforated
Baffles
Inlet
Flange
Outlet
Flange
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