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4075/4475 High Temperature Valves

SKU 4075-4475

AMOT Model 4075/4475 High Temperature valve is used to sense gas or liquid high temperature conditions. The field adjustable temperature setting from 54° C (130° F) to 260° C (500° F) provides wide set point flexibility. The standard thermowell provides extended sensor life and simplifies calibration and maintenance. 

Features and Benefits

  • 316 Stainless Steel (Model 4475) or Cast Aluminum (Model 4075) body

  • Field adjustable

  • Reliable protection

  • Few moving parts

  • Easy installation – low maintenance

  • Thermowell included

  • Compatible with complete AMOT shutdown systems

  • Viton seals

4075 Valve body: Anodized aluminum
4475 Valve body: 316 stainless steel    
4075 Installation thread: 3/4" BSP(PL) 3/4" & 1" NPT  
4475 Installation thread: 3/4" BSP(PL), BSP (Tr) 3/4" & 1" NPT  
Port thread: 1/4" NPT    
Typical medium sensed: Gases    
Adjustable temp. trip range: 54 - 260°C 130 - 500°F  
Max. pressure at IN port: 8.62 bar 125 psi
  • Jacket water temperature

  • Compressor discharge temperature

  • Steam temperature

  • Lube oil temperature

  • Process temperature

The 4075/4475 is widely used for sensing high pressure natural gas compressor discharge temperature. When a valve is positioned at each compressor cylinder discharge manifold, an increase in temperature past the valves set point will cause the valve to vent off a control signal.
Removal is quick and easy removal with the stainless steel well which is supplied as part of the standard valve assembly. The valve assembly is held into the well by straight thread connections and a locking nut. Unscrewing the valve body/locknut and disconnecting the tubing fittings is all that is required to remove the valve from the well.

See datasheet for complete operation information.