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4103D Temperature Detector and 4103 M, N, T, R Miniature Temperature Detector

SKU 4103DMNTR

AMOT Model 4103D Temperature Valves and Model 4103M Miniature Temperature Valves are ideal for use on medium and high speed engines. The valves initiate a warning or shutdown upon a sudden temperature rise in critical machine parts caused by 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. The 4103M valves provide the same low cost reliability for small bearings that have been field proven by their larger counterparts (Model 4103D) in larger stationary bearing applications.

Note: Fuse rod 6710 is a component of the 4103 family of temperature detectors. 

Features and Benefits

  • High bearing and fluid temperature detection
  • Power or compressor cylinder overload
  • High packing gland temperature detection
  • High discharge temperature dectection
Specifications
Materials: Valve Body:
Standard seals:
Rod body:
Sensing:

Stainless steel
Viton
Brass
Eutectic alloy

 
Available trip temp. range: 79 to 173˚C 174 to 343˚F  
Max. allowable temp: 173˚C 343˚F  
Max. control pressure:

Miniature range:
Standard range:

4.14 bar
6.21 bar

60 psi
90 psi

Tripped movement: 8mm 5/16"
Applications
  • High bearing and fluid temperature detection

  • Power or compressor cylinder overload

  • High packing gland temperature detection

  • High discharge temperature detection

Operation
The range of 4103 temperature valves provides a reliable sensor, which will trip upon temperature rise.
The valves have a stainless steel body containing a normally closed valve sealed with a Viton ball. The temperature sensing portion is a thin film of eutectic alloy located near the tip of the fuse rod assembly. This 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 is recommended for use with air, gas or lube oil control systems because it provides a leak-tight seal.
 

Warning

Do not heat unrestrained fuse rod assemblies. They fire with sufficient force to cause injury.