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Materials of Construction

15.3 Material classes for centrifugal pumps in general
refinery services

CA UTION: Th# table # intended as a general guide. It should not be used without a
knowledgeable review of the specific services involved
On-Plot
Process Off- Plot Pressure
Reference Transfer & Temperature Range Material See
Service Plant Loading Range (~ (psig) Class Note

Fresh Water, X X <212 All I-1 or 1-2
condensate, cooling
tower water
Boiling Water and X X <250 All I-1 or I-2 5
process water X X 250-350 All S-5 5
X X >350 All C-6 5

Boiler Feed Water
Axially split X X >200 All C-6
Double casing X X >200 All S-6
(barrel)
Boiler Circulator X X >200 All C-6
Foul water, reflux, X X <350 All S-3 or S-66
drum water
water draw, and
hydrocarbons
containing these
waters, X X >350 All C-6
including reflux
streams

Propane, butane, X X <450 All S-1
liquified
petroleum gas
and ammonia
Diesel Oil; gasoline; X X <450 All S-1
naphtha; kerosene;
gas oils; light,
medium and
heavy lube oils; X 450-700 All S-6 6,7
fuled oil;
residuum; crude
oil; asphalt;
synthetic crude
bottoms X > 700 All C-6 6

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