| BRAND | Murphy |
| Product | A20T 0525055-1/2 |
| Internal code | ONR4835567 |
| Technical specification | emperature Swichgage®; Polycarbonate Case; 130-250°F Temp Range; 25 Ft Capillary Length (10703168) The A20T-250-25-1/2 Temperature Swichgage® is a diaphragm-actuated, 2" temperature-indicating gage with a built-in electrical switch for tripping alarms and/or shutdown devices. This model has a polished stainless steel bezel, a temperature range of 130-250°F, a 25 foot capillary and standard 1/2-14 NPT threading. This rugged, built-to-last instrument is fully sealed from the environment by the unique combination of a polycarbonate case and lens and O-ring seals. 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. Contacts are isolated through ground. This gage has a self-cleaning motion to enhance electrical continuity. |
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