Teikoku USA | Chempump
Instruction Manual G-Series
16
2.4.5 Water and Steam Jackets
When handling fluids at controlled temperatures, additional mo-
tor cooling or heating must be provided. For temperature control,
jackets are provided for water, steam, or other heat transfer me-
dia. In addition, the pump can be submerged into the pumped
fluid, thus providing an additional means of temperature control.
All G-Series pumps can be provided with removable type wa-
ter jackets (See
Figure 2-8
). This type jacket is easily removable
from the stator band to allow for inspection and replacement.
Removable-type water jacket kits are available from the factory
for provision or already installed in the field when additional sta-
tor cooling is required. These jackets are suitable only for heating
mediums compatible with the gasket and jacket material, with
maximum inlet pressure of 50 psi and with maximum tempera-
ture of 150° F. They should not be used as steam jackets. Jackets
welded to the stator band are available for use as steam jackets
and for liquid mediums which exceed the temperatures and pres-
sures noted above. Normally welded type jackets are suitable for
steam pressures to 50 psi and liquid medium pressures to 100 psi.
However, welded type jackets specially fabricated are also avail-
able for higher pressures.
2.4.6 Heat Exchanger
Similar to the water jacket in every respect except for the pro-
vision of corrosion-resistant tubing, heat exchangers, whether
removable, or welded-on, are provided on Teikoku applications
that require heating or cooling the fluid before it enters the rotor
chamber. Heat exchangers are especially recommended for liquids
with low specific heat characteristics.
All G-Series pumps can be provided with removable wrap around
heat exchangers when specified. This type jacket is easily removed
from the stator band to allow for inspection and replacement.
These heat exchangers are suitable for maximum inlet pressure
of 50 psi and maximum temperature of 150° F. See
Figure 2-9
.
Welded on heat exchangers are available on all G-Series pumps.
These heat exchangers are suitable for steam pressure of 50 psi
and liquid medium pressures to 100 psi, where maximum temper-
atures vary depending upon existing motor insulation and TCO
setting as indicated on the pump nameplate.
2.4.7 Jacketed Circulation Tube
The jacketed circulation tube acts as a heat exchanger in that it
permits a heat transfer medium to circulate around the tubing
and heat or cool the fluid before it enters the rotor chamber. The
jacketed circulation tube is suitable for maximum inlet pressures
of 50 psi liquid, or 15 psi steam. Higher pressures are available on
special models. See
Figure 2-7
.
Figure 2-7. Jacketed Circulation Tube
