Frank W. Murphy A20T Series Temperature Swichgages®

• Diaphragm-actuated, temperatureindicating gages, with built-in electrical switches for tripping alarms and/or shutdown devices.
• These vapor actuated gages feature a sealed capillary tube and a sensing bulb. When subjected to heat, the liquid in the sensing bulb changes to vapor creating pressure against the diaphragm mechanism. The diaphragm translates this vapor pressure into a mechanical gage reading.
• Dial: Black with white markings.
• The gage pointer acts as a temperature indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contact(s) are isolated from ground.
• Case: Glass filled/Polycarbonate, corrosion-resistant with polycarbonate, high-impact lens.
• Bezel: Polished stainless steel.
• Temperature: 130-250° F.
• 1/2” N.P.T.
• Fits standard 2-1/16” opening.