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Engineered
Sensors
Tedeco
Products
Lubrication
System Diagnostic Monitors
Electric
Chip Detectors | Quantitative Debris
Monitors
| Cyclonic Debris Monitors

Duplex Debris Monitor
Early
Detection of Lube System Gear and Bearing Failures for High-Value
Power Generation or Non-Interruptible Production
The
Duplex debris monitor is an on-line, full flow debris sensor and
housing for lubrication systems, that captures, retains and
remotely indicates magnetic wear debris, generated by surface
fatigue failures of oil-wetted, components, in real-time.
The sensor-retained debris can be removed and
analyzed for further information about the nature and site of the
impending failure, in many cases, without the need to shut down
the equipment being monitored!
On-line, early warning of potential failures can be provided
well in advance of actual loss of function, permitting repairs to
be performed during scheduled shutdowns, with little or no loss of
precious, expensive, operating time.
The Duplex monitor consists of a scavenge or return line-mounted,
dual chamber housing, with a rated flow up to 30 gpm of
lubricating oil. The chambers, each with its own debris sensor,
are mounted in an alternate-flow arrangement. Typically, only one
chamber is used to monitor the total flow from the system. If the
powerful magnetic sensor captures gear or bearing debris, a remote
signal alerts the operator to switch the flow to the alternate
chamber. The first chamber, now isolated from the oil, may be
depressurized and opened to retrieve the debris particles for
inspection and analysis, without the need to shut down the host
machinery.


This
system is suitable for high-value stationary or mobile equipment,
where cessation of operation for unscheduled maintenance cannot be
tolerated. For further information, contact Tedeco's sales
department with your application.
General
Application Notes
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Part
number:
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3N8517:
1-˝" NPTS Female fittings
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3N8517-1:
37° Flare end fitting, 1-5/16-12Un-2A thread
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3N8517-2:
1-˝" NPTF Female fitting
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Pressure
Drop:
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5.0
psid at 30gpm of Mil-L7808 or 23699 Lube Oil at 250°F
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Materials
of construction:
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Duplex
housing - 304 stainless steel
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Plug
lifting and sensor-select handles - ASTM A48 class 30 Cast
Iron with gray enamel paint finish
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Internal
seals - Viton
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Duplex
Monitor features:
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Two
independent isolated ground chip detectors with 0.065"
radial chip gap.
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Choice
of cast iron or stainless steel housing.
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Contamination-resistant
tapered plug valve for chip detector chamber selection.
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Tapered
plug lifting mechanism permits low friction plug valve
operation for sensor selection.
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"Finger-grip"
release knobs permit tool-free sensor removal.
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Sensor-select
handle points to "on-line" sensor.
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On-line
sensor may be isolated and removed for inspection, with no
loss of oil, even with an operating system.
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