Catalogs >
AMOT >
4103M/N/T/R Miniature Temperature Detector

4103M/N/T/R Miniature Temperature Detector
4Pages

Catalog excerpts

4103M/N/T/R Miniature Temperature Detector - 1

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.

Open the catalog to page 1

4103M/N/T/R Miniature Temperature Detector - 2

INSTALLATION AMOT Model 4103 Miniature Temperature Valves are the basic sensing units in a safety system and must be tied into the system through connecting tubing. Control pressure may be clean, dry air, gas, or a non-corrosive liquid such as lubricating oil at up to 60 psi. Air or gas can be used on many applications, however, the use of gas may not be desired in a hazardous location. Air/ gas systems are more versatile and will give faster response than an oil system. Oil is used in many systems on an engine as shown in Figure 2. Connecting tubing should be 5/16" O.D. Close-tee each...

Open the catalog to page 2

4103M/N/T/R Miniature Temperature Detector - 3

HOW TO ORDER REPLACEMENT FUSE RODS When ordering please specify the following: 1. 2. 3. 4. Indicate Model 4103. Installed Depth, see Table B. Fuse Rod Length, see Table B. Trip Temperature in deg. F: 174, 197, 217, 228, 253, 291, or 343. 5. The following special feature if required: a. Stainless Steel Valve Ball (instead of Viton.) b. M10 x 1.5 metric Mounting Threads (instead of 5/ 16-24 NF.) c. 1/8 BSP(Tr) Valve Port Threads (instead of NPT.) Available from UK factory only. When ordering please specify the following: 1. Fuse Rod Assembly Model 7280X. 2. Fuse Rod length; see Table C. 3....

Open the catalog to page 3

4103M/N/T/R Miniature Temperature Detector - 4

MAINTENANCE It is recommended that the overall safety system be checked monthly for proper functioning by simulating an unsafe condition. AMOT recommends maintenance including visual inspection at the major overhaul of the engine or yearly if lacquering of the lube oil is observed. Excessive lacquering can cause sticking which impairs operation. Unscrew the Detector from the mounting hole and remove Fuse Rod Assembly (4) with a twisting motion. Hold it by the ends and visually examine the eutectic alloy area for exposed alloy. Visible alloy should be a clean fillet around the two brass...

Open the catalog to page 4

4103M/N/T/R Miniature Temperature Detector 4Pages

Catalog excerpts

All AMOT catalogs and technical brochures

4103M/N/T/R Miniature Temperature Detector
4Pages