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Specification Value
Marley
/
NC Class Stainless Cooling Tower
/
Specifications: Base
10
10.0 Access:
10.1 A large stainless steel, rectangular
access door shall be located on both
end panels for entry into the cold
water basin. Doors shall provide
access to the fan plenum area to facili-
tate inspection and allow maintenance
to the fan drive system.
11.0 Cold Water Collection Basin:
11.1 The collection basin shall be heavy-
gauge S300 stainless steel, and shall
include the number and type of suction
connections required to accommodate
the outflow piping system shown on
the plans. Suction connections shall be
equipped with stainless steel debris
screens. A factory-installed, float-oper-
ated, mechanical make-up valve shall
be included. An overflow and drain
connection shall be provided in each
cell of the cooling tower. The basin
floor shall slope toward the drain to
allow complete flush out of debris and
silt which may accumulate. Towers of
more than one cell shall include stain-
less steel flumes for flow and equal-
ization between cells. The basin shall
be accessible and maintainable while
water is circulating.
■ The access doors on NC8301 and
NC8302 towers are 76cm wide by
84cm high. On NC8303 thru NC8312
the access doors are 122cm high.
Small access doors are prohibitive
and discourage maintenance, which
in turn can impact your operation.
Specifying the size of the door will
cause some bidders to take excep-
tion, alerting you to a potential
maintenance headache. Two doors
are standard on all NC Class tow-
ers—one in each endwall.
■ The NC tower design offers side-
suctions, side-outlet sumps, and
bottom outlets to accommodate
a significant variety of piping schemes. Unless so specified, the tower
you may be asked to approve may only be available with one type of
suction connection, requiring you to redesign your piping layout.