Page 58 - ParkerMULTITUBE

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Parker Hannifn Corporation
Parfex Division
Ravenna, OH
Process Control & Analyzer Systems Catalog Number 4200-M-2
Design Selection
Heated CEMS products normally consist of two sections
within the umbilical. The heated core and the unheated
probe support section.
In some cases customers will choose to have these two
sections broken down into separate umbilicals, however
to reduce installation cost and time, many times all
components are included in one control umbilical.
Heated Core: In many cases the heated core consists of
two or three tubes, sample tubes, calibration tubes and
possibly a spare. These tubes can be color coded for
ease of identifcation.
Within the heated core a heating element will be
positioned to ensure the most consistent and uniform
heat transfer between all lines. The product can also
be designed to include a temperature sensor device.
The most common device used are 100 Ohm RTD’s or
Thermocouples.
Temperature sensors are placed at points along the
heated core that allow for uniform heat control under
various ambient and process conditions.
Unheated Core Probe Support Section
The unheated section of the umbilical is at a temperature
interface outside the heated core that allows for
placement of probe support wires and unheated air lines
and calibration lines.
Electrical probe support wires and even fber-optic
cables can be included within the area to offer a
completed assembly.
Products are designed to your application specifcations
and can include any number and combination of tubing
materials and electrical wire control.
We have outlined a special design questionnaire
specifcally tailored to assist you with designing a
product that will meet your needs. (See Page 55)
General Heated Bundle Design :
General Probe Support Bundle Design
Parfex is also a leading manufacturer of probe
support umbilicals. These Multitube ® bundles
are made to the customers design requirements,
with unheated tubes, electrical wires and probe
temperature sensor wires, such as thermocouple
extension cables.
Probe support umbilicals can consist of any
combination of tubes and sizes. The tubes will
be uniquely identifed for quick and accurate feld
connection. In many cases, probe support bundles
will not see extreme heat, therefore more economical
electrical wire material can be used, such as THHN
cables or conductors.
Any of Parfex umbilicals can be jacketed with the
customer’s specifed material, including FR-TPE, FR-
PVC and Urethane materials. (See the technical data
section for jacket selection)
Unheated air purge,
calibration tubes
Probe support
cables/wires
Heated
process tubes
Temperature Sensor
Customer specified
jacket material
Heating element
Process
tubes
cables
Customer Specified
jacket material
Probe wires
Analyzer Bundles for Process Monitoring and Probe Control