20T-250-16-1/2 Murphy Temperature Swichgage 16ft

Description

20T-250-16-1/2
Murphy Temperature
Swichgage
16ft.
The Murphy 130-250F Mechanical Temperature Swichgage with 16 Ft Capillary 20T-250-16-1/2 is a diaphragm-actuated, temperature-indicating gage with built-in electrical switch for tripping alarms and/or shutdown devices. This rugged, built-to-last instrument is fully sealed from the environment by the unique combination of a polycarbonate case and lens, a polished stainless steel bezel, and O-ring seals. This vapor/pressure actuated gauge 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 a 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 isolated from ground. They have self-cleaning motion to enhance electrical continuity. Applications for A20 series temperature swichgage instruments include: engines and equipment in oil field, marine, irrigation, construction and trucking industries. Monitoring engine coolant temperature, crankcase oil and transmission oil.
FEATURES:
2 inch/51 mm dial
O-ring Seals
Polished Stainless Steel Bezel
Corrosion Resistant Polycarbonate Case
Indicating Gage and Limit Switch
Switch Can Activate Alarms and/or Shut Down Equipment
Contact(s) Isolated From Ground
PRODUCT SPECIFICATIONS:
Part No.: 20T-250-16-1/2
Range: 130-250°F (60-121°C)
Adapter Nut: 1/2-14 NPT
Dial: White on black
Case: Glass filled/Polycarbonate, corrosion-resistant; steel mounting clamp included
Bezel: Polished stainless steel
Pointer: Tempered nickel silver; red tip
Lens: Polycarbonate, high-impact.
Sensing Element: Beryllium copper diaphragm
Sensing Bulb: Copper
Capillary: PVC armored copper; 16 ft.
Sensing Bulb: Copper
Adjustable Limit Contact: SPST contact; pilot-duty only, 2 A @ 30 VAC/VDC; isolated from case ground. Normally Closed when the high limit is met. Normally Open when pointer is in normal operating range. Contacts are gold flashed silver
Limit Contact Adjustment: by a 1/16 in. hex wrench thru 100% of the scale
Wiring: Number 4 screw terminals
Unit Weight: 11.9 oz. (0.370 kg)
Unit Dimensions: 4-3/4 x 4-3/4 x 3 in. (121 x 121 x 76 mm)
All our products are original, brand-new, unused, unopened, undamaged item in its original packaging
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