Immersion
Over-the-Side Immersion Heaters
Application & Selection
Guidelines
Sheath Material — Selection Guidelines1
Applications
Material Being Heated
Typical Sheath Material
Copper
The large variation in heating element material
and shapes of over-the-side immersion heat-
ers offers a wide selection in the application
of these units. Water, oils, solvents, plating
baths, salts and acids are some of the many
liquids and viscous materials commonly
heated with immersion heaters. Over-the-side
types permit portability, easy removal for
cleaning of tanks and heaters and ample work-
ing area within the tank when installed.
Clean Water (pH6 to pH8)
Demineralized or De-ionized Water
Stainless Steel (passivated)
INCOLOY®
Fluoropolymer
Medium Weight Oil, Alkaline Cleaning (low concentration)
Mild Soaking Cleaners
Mild to Medium Corrosive Solutions, Many Oxidizing
Acids, Organic Chemicals, Mild Aqueous Solutions
Chromic Acid (10%), Nitric Acid (to 65%)
Salt Brine, Many Plating Solutions (i.e. Nickel, Silver,
Zinc, Gold)
Steel
Stainless Steel
INCOLOY®
Titanium
Soft Metal Melting
Molten Metal, High Corrosive
Most Acids, Plating Solutions, Pickling Solutions
Cast Iron
Ceramic
Important — When selecting a tank heater
design, the user should make sure the sheath
material is suitable for the solution being
heated at the maximum temperature expected,
with proper safety factor.
Fluoropolymer
Quartz2
1. Consult Corrosion Guide in the Technical section for specific material recommendations.
2. Not for use in hydrofluoric acid and alkaline solutions.
L-Shaped Installation
Side Mount Installation
Deep Tank Installation
Over-the-Side Immersion Heaters — Selection Guidelines
Heater
L-Shaped Metal Sheath
Model
Page
Heater
Drum Heater
Salt Bath Heater
Deep Tank Heater
Portable Tank Heater
Soft Metal Melting Heater
Ceramic Sheath
Model
Page
TLC & KTLC
TLO & KTLO
TLS & KTLS
TLI & KTLI
GS & GT
GS3 & GT3
GSL & GTL
GSL3 & GTL3
GSV3 & GTV3
QM & QM3
PTH & PTHT
PTHF
B-115
B-116
B-117
B-118
B-119
B-120
B-121
B-122
B-123
KBLC & KBLS
TBL & TBL-A
BLCK-MH & BLCS
CH-OTS
B-134
B-135
B-136
B-137
B-138
B-139
B-141
B-143
B-144
Side Mount Metal Tube
L-Shaped Metal Tube
CIT
CS
Side Mount Heat Exchanger
GRT & GRS
US & UT
GHTF
Side Mount Quartz Tube
Side Mount Metal Sheath
B-124
Terminal Enclosure Dimensions
Optional Accessories
B-145
B-147
B-125
B-126
B-127
CT
Side Mount
Fluoropolymer Coated
TPR & TPF
B-128
B-129
B-130
B-132
GTF & GTFL
GXF & GXFL
GTF6 & GTF9
L-Shaped
Fluoropolymer Coated
GTFL3
B-133
B-113
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