4103M/N/T/R Miniature Temperature Detector0 pages

Model 4103
M, N, T, R
Miniature Temperature Valves

FEATURES
Protects stationary bearings and other parts
from damage due to unsafe high
temperature levels.

■ RELIABLE PROTECTION
■ INSTANT RESPONSE TO EXCESSIVE
BEARING TEMPERATURES
■ COMPACT DESIGN
■ EASE OF INSTALLATION
■ USE WITH OIL, AIR, OR GAS
■ SIZES TO FIT MOST ENGINES

APPLICATIONS
■ HIGH BEARING AND FLUID
TEMPERATURE DETECTION
■ POWER OR COMPRESSOR CYLINDER
OVERLOAD
■ HIGH PACKING GLAND
TEMPERATURE DETECTION

4103M, N, T & R
Miniature Temperature Valves

7280X Replaceable
Fuse Rod Assembly

AMOT Model 4103 Miniature Temperature Valves were
developed to extend the capabilities of the 4103 stationary
bearing Temperature Valve line. Their small size makes
these valves ideal for use on medium and high speed
engines. They provide the same low cost reliability for small
bearings that have been field proven by their larger counterparts (Model 4103D, E, F, J) in larger stationary bearing
applications.
Model 4103 Valves initiate a warning or shutdown upon a
sudden temperature rise in critical machine parts. Such
temperatures may arise from tight, worn or out-of-round
bearings, tight packing glands, cracked or broken shafts,
torsional vibration, power or compressor cylinder overload,
lack of lubricant flow and many other sources. For similar
capabilities in moving bearing applications, refer to AMOT's
Model 4102 Temperature Detectors.
Model 4103 has a stainless steel body containing a normally
closed valve sealed with a Viton ball. The temperature
sensing portion of the 4103 is a thin film of eutectic alloy
located near the tip of the Fuse Rod Assembly. This eutectic
alloy, less than 0.001 cubic inch in volume, secures a spring
loaded fuse rod until the temperature at the sensing end of
the rod melts the alloy. The fuse rod is then instantly
released and allows the spring-loaded rod to unseat the
Viton valve ball. A stainless steel ball is an optional item for
use with lube oil as the control medium if high pressures are
to be encountered. Generally, the standard Viton ball is
recommended for use with air, gas or lower pressure lube
oil control systems because it provides a leak-tight seal.

FORM 693