Clark-Reliance Hy-Sight Installation, Operation And Maintenance Manual - Page 6
Browse online or download pdf Installation, Operation And Maintenance Manual for Measuring Instruments Clark-Reliance Hy-Sight. Clark-Reliance Hy-Sight 7 pages. Hygienic sight flow indicators
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3. Maintenance
Periodic maintenance and inspection should be carried out on the Hy-Sight unit, the frequency of which will
vary with application. The end user should determine the appropriate maintenance schedule based on their
experience with the given application.
Maintenance & inspection procedures should focus on the following areas:
a) The screwed head connections remain tight and butted up against the body.
b) The glass cylinder for signs of wear or damage.
c) The sealing O-rings for signs of degradation, protrusion or intrusion.
d) The centralizing O-rings for signs of degradation, resulting in a loose fittings glass cylinder.
e) Corrosion to the stainless steel body or head connections.
Elastomer based O-rings degrade over a period of time, this reduction in volume greatly affects the
compressibility of an O-ring and in turn the sealing capability, resulting in a unit that may leak.
We advise that both the sealing & centralizing O-rings are replaced to fall in line with the end users current
gasket change out schedule.
Do not attempt to carry out maintenance on the Hy-Sight unit whilst installed in
pipework, ensure the pressure has been removed from the process line prior to
3.1. Disassembly
Disassembly should only be carried out by trained personnel who are familiar with this IOM manual.
The following steps should be taken:
a) Release the tri-clamps from both ends of the Hy-Sight unit, remove the unit as a whole.
b) Unscrew the head connections from the body, one at a time.
c) Carefully remove the glass from the body.
d) Remove the O-rings from both the glass cylinder and/or the head connections.
Used O-rings should be disposed of immediately, never try to re-assemble the Hy-Sight unit with O-rings that
have already been used in service.
Adequate PPE should be warn when assembling or disassembling the Hy-
Sight unit, this includes but not limited to eye protection and cut proof gloves.
3.2. Assembly
Assembly should only be carried out by trained personnel who are familiar with this IOM manual.
The following steps should be taken:
a) Install one of the new centralizing O-rings over the glass cylinder, so that it sits approximately 1" away
from the one end of the cylinder.
b) Place the new sealing O-rings into the head connections (one in each), ensuring they sit snuggly into
the precision machined groove.
WARNING
unit removal
DANGER
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+1 440-572-1500
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