A minimum order of $20 is required before checking out.

Murphy 140-300F Temperature Swichgage 2.5 in. with 20 Ft Capillary and Polycarbonate Case - A25T-300-20-1/2

Availability:
Request Quote
MPN:
10703706
SKU:
77112257
Customer Reviews
SKU:
77112257
Weight:
0.91 LBS
so_moq:
1
so_qi:
1
Estimated Special Order Ship Date:
Special Order (ships approximately 6-8 Weeks)
Special Order Available:
Increments of 1
QPO:
0
MPN:
10703706

The Murphy 140-300F Temperature Swichgage 2.5 inch with 20 Ft Capillary A25T-300-20-1/2 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.


PRODUCT FEATURES:

  • 2-1/2 inch/64 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:

  • Murphy Part No.: A25T-300-20-1/2
  • Range: 140-300°F (60-149°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; 20 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 6 screw terminals
  • Unit Weight: 13.3 oz. (0.413 kg)
  • Unit Dimensions: 4-3/4 x 4-3/4 x 2-3/4 in. (121 x 121 x 70 mm)


Product Condition: NEW
NOT ACTUAL IMAGE SHOWN - SAME STYLE


Shop Products

“More than just a parts website. The account manager helped us plan ahead with inventory so we could avoid disruptions with our production schedule. Their engineering resources were available to assist with our application requirements. Highly recommend this team!”
— Satisified Customer

CAN'T FIND THE PART YOU NEED?

Shoot us an email or call (503) 802-1370

Contact Us