20T-220-6-1/2 Temperature Swichgage (10702496)

20T-220-6-1/2: 2" Temperature Swichgage®; 130-220° F. temp range; 6 ft. capillary length  (10702496) 

The Murphy 130-220F Mechanical Temperature Swichgage 2" with 6 Ft Capillary 20T-220-6-1/2 is a diaphragm-actuated, temperature-indicating gage with built-in electrical switch for tripping alarms and/or shutdown devices. The gage mechanism is enclosed in a steel case coated to resist corrosion. A polycarbonate, break-resistant lens and a polished, stainless steel bezel help protect this rugged, built-to-last instrument. 

This vapor actuated gage features 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.

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 grounded through the Swichgage case. This gage has a self-cleaning motion to enhance electrical continuity. Applications: Industrial engines and equipment in Oil Field, Marine, Irrigation Construction and Trucking industries. Monitoring Engine Coolant, Crankcase Oil and Transmission Oil.


FEATURES:

• 2 inch/51 mm Dial
• Steel Case Coated to Resist Corrosion
• Polycarbonate, High-Impact Lens
• Polished Stainless Steel Bezel
• Combination Indicating Gage and Limit Switch
• Switch Can Activate Alarms and/or Shut Down Equipment
• Contact Grounds Through Case