5
Temperature limit for SIP cleaning is primar-
ily limited by the temperature rating on the
magnetic pickup. If the pickup temperature
rating will be exceeded during SIP cleaning,
remove it during the cleaning process or
a higher temperature rated pickup should
be specied. Internal components of the G
Series Sanitary Turbine must be limited to
less than 285°F (140°C). The temperature
and pressure rating of gaskets and clamps
used in the installation must also be taken
into consideration when determining clean-
ing parameters.
Minimum requirements for effective ster-
ilization with SIP cleaning are to maintain
250°F (121°C) at the coldest point in the
system for a minimum of 30 minutes. This
requires a minimum of 15.3 psig (106 kPa)
saturated steam pressure. Normal recom-
mended maximums for SIP cleaning on G
Series meters is 285°F (140°C) and 39 psig
(269 kPa) saturated steam pressure.
Disassembling the Turbine
1. Disconnect the turbine owmeter cable
from the magnetic pickup. Refer to
Figure 1.
2. Remove the magnetic pickup.
3. Ensurethatthe process line is depressur-
ized and empty prior to removal of the
turbine owmeter. Remove the turbine
owmeter from the process line.
4. Using a small screwdriver or similar
tool, insert it into the radius notch of the
retainingring,pull awayfromthegroove
and up, removing the retaining ring
from one end of the turbine owmeter.
This will allow the support to slide out
of the turbine owmeter body. Remove
the rotor before proceeding to the other
support.
NOTE: To remove the other support, simply
repeat this operation.
5. Once the turbine flowmeter is taken
apart, inspect the turbine flowmeter
body for signs of wear or defects. The
body bore should be smooth and show
no evidence of wear.
NOTE: Do not install a new replacement kit
into a turbine owmeter body that shows
signicant signs of wear.
6. Examine therotorfor brokenand/or bent
blades. Remove any foreign matter.
7. Examine the supports for signs of de-
terioration, such as wear marks and/or
burrs along the outer edge of the support
vanes.
8. When the rotor or the supports show any
sign of deterioration, a new replacement
kit should be installed. Do not install
a new replacement kit into a defective
turbine owmeter body.
Replacement Kits
A replacement kit is comprised of all the
internal component parts within the turbine
owmeter. A replacement kit consists of the
following:
GPI supports are identical in design, thus
eliminating assembly error. Each support
incorporates a thrust bearing, which allows
for bidirectional ow and prevents damage
to the rotor and/or supports in the event the
turbine owmeter is installed backwards with
respect to the direction of ow.
Notice that the direction of ow is displayed
on the body of the turbine owmeter. This is
important when installing the rotor and also
denotes the direction in which the turbine
owmeter was calibrated.
NOTE: GPI rotors are tapered on one end
(except 1/2" and 3/4"). The tapered end
should be installed on the inlet side.
See Figure 1. The 1/2" and 3/4" rotors
are marked with a point on the hub and
should be installed with the marked side
of the rotor hub on the inlet side.
Parts
Description Quantity
Rotor Assembly 1
Support Assembly*2
Retaining Ring 2
*The support assemblies come complete with
bushings and thrust balls, which are factory
installed.Properselection of bearing material is
critical when ordering a new replacement kit.
