0 - Hanford Site

RPP-24544 REV ]d
CS & STC Series installation & maintenance
g) Flan the installation to meet the requirements Indicated on the piping
Ins'allation diagram as i llustrated above. If Is recommended to put the
tot uld b be cooled through the she lf side and the c old uld through the
tube side. The Indicated port assembly sequence In the diagram max&
mizes the performance. and moirrdzes the possib ility of thermal shock
In instances where the uids we required to be reversed, trot ndd In the
Mesandeold uldIn Oesheathe heat exchangerwll work with reduced
pe rformance. Insta ll
ation may be ver tical or ho rizontal or a combina tion
thereat. However, the Installation must allow forcomplete draining of the
heat exchanger regar dl
ess at single pass. two pass, orIO rpass constru c.
km Complete drainage Is Important to p re vent the heat exchanger from
keezing, overheating at a old. or mineral deposit buildup.
For fixed burde heat exchangers, provide sutaclentdearance atone end
to allow or the removal or replacement of tu bes. On the opposite end,
provide anaghapace to removal of the compote bo nn et to provide
sufficient clearance to perm it
bibs ro il
ing and cleaning. Aloes accessible
room for scheduled cleaning as needed. In cl
ude thermometer wells and
pressure gauge pipe pods in pip in g 10 and from the heat exchanger lo.
catedas dose o the heat exchanger as possible. For more lnfonnaaon
please contact American Industrial.
• h) h is recommended to use exible hose whe rever poss ib
le to reduce
vbm0on and aloes slight movemen t. However, hoses are not re quired.
Hydrau lic ca r rying Ines should be sized to handle the approp ri ate ow
and o meetsyslem p ressu re drop requiremen ts based upon the systems
paramete rs, and not based upon the units supply and return connec ti
on
size. We recommend th
at a low cracking pressure direct a cting relief
vain be Installed at the heat exchanger Wet to prote ct I kom pressure
spikes by bypassing of In the event the system expe ri ences a high ow
surge. It preventat iv e Duration Is used I should be located ahead of the
cooler.on both then and tube side to catch any scale or sludge Imm the
system before it
the coder. Falum to inrstan l it
ers ahead of the
heat exchanger could lead to possible heat exchanger fa il u re due to high
pressure I the system filters plug.
g Standard shag b tube coolers are built wi th a mned tube-sheet corn
struc tion However, the differential operating temperature between the
en leringshelslde uldandtheenteringlubeslda uldshoutdnotexcoed
1504F. It this condition exists, a seve re thermal shock could occ ur leading
to product failure and mixng of the uids. For appl ic a tions with a differential
temperatures of 150'F or more, we recoavnend using a sedes w ith
a calling tube-sheet, u-tube, or expansion Joint to reduce the poten ti al
for the e ffec ts of thermal shock
0 Water requiremen ts vary from loca ti on to location. 0 the source of coalfrig
waters from otter than a municipal water supply, It Is recomnended
that a water "nor be insta ll ed ahead of the heal exchang er to p revent
dirt and debds from entering and dogging the ow passages. I a water
modtdallrg valve Is used it recommended to be Insta lled at the Inlet to
the tooter to reg ulate the water ow.
k) For steam ser vice, or other related applications, please consul our
enginee ri
ng depa rtment for additional Information
Maintenance
a) ktspedthe heats changerforloosenedbans, connections, rust spots,
corradmandfor klemd orederrel uldleakage.A4ryconodedeu rtaces
sho ul d be cleaned and recoated w it h palnL
the panicutarmate rial of construction. With straight tube heat exchangers
you can use a rod to ca refully push any deb ris out of the tubes.
d) Zinc erodes am normally used to reduce the dsk of tallure due to
electrolysis. Zinc anodes are a sac rificial component designed to we ar
and dissohre through normal use. Nannaly, zinc anodes are applied to the
water supply side of the heat exchanger. Depe nrIng upon the amount of
corrosive action, one, two. three, or more anodes can be appled to
fur th
er re duce the risk of fa llure. American Industrial Heal Transfer, Inc.
offers zinc anodes as an option, to specified and Installed at the request
ourdrsromers. his the responsibil yof the cusloner to pedodlcaay deck
and verify the condition of the zinc anode and replace It as needed.
Applications va ry due to water chem ic al makeup and quality, material
diffe rences. temperature. ow ra te, piping a rr angements, and machine
grounding. For Rose reasons, zinc anodes do not billow arty scheduled
tacbry predetermined maintenance plan moreover Ineymust be checked
rou ti nely by the customer, and a maintenance plan deve loped based
upon the actual wear rate.
It substantial wear occurs or zinc dissolves without replacement, premature
tailum or permane nt damage may o ccur to the heat exchanger.
Ame ri can Indust ri al does riot warranty tustomerapp li
cations. h is the responsib
iliyof the customer to verify and apply the proper system mate rials
of construction and overa ll system requiromens. Failures resulting from
property app li
ed or misapplied use of zinc anodes) Into non•specitied or
specified app lic
ations wi ll be the sole responsib il ity of the cusomer.
e) A routine maintenance schedule sho ul d be developed and ad)usted to
meet your systems requirements based upon water quality, etc .... Fail.
ure to regula rly maintain end clean your heat exchanger can result In a —
reduc ti on In operational pedomianee and lie expectancy.
Note: Since applications can va ry subs tantially, the Installa tion and
maintenance InlonnaOon contained In Mats catalog should be used as
a basic guideline. The sate Insta ll
ation, maintenan ce, and use of any
American IndusMat Heat Transfer. Inc. beat exchanger are soley Me
responslbdiry of the user.
O.aG'
•—'•^ 0.75'
II +,_
A9-a00 dxo AB-1000
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