4103M, 4103N, 4103T, 4103R - 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

Operation

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 counter-parts (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.