- SKU:
- 77135442
- Weight:
- 0.91 LBS
- so_moq:
- 1
- so_qi:
- 1
- Estimated Special Order Ship Date:
- Special Order (ships approximately 2-3 Weeks)
- Special Order Available:
- Increments of 1
- QPO:
- 0
- MPN:
- 10703840
The Murphy 130-250F Direct Mount Temperature Swichgage 2 inch 20SD-250-1/2 is a diaphragm-actuated, temperature-indicating gage with a 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 Swichgage features 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. This model has no capillary tube.
FEATURES:
- 2 inch/51 mm Dial
- Polycarbonate, High-Impact Lens
- Polished Stainless Steel Bezel
- Contact Grounds Through Case
- Combination Indicating Gage and Limit Switch
- Switch Can Activate Alarms and/or Shut Down Equipment
- Enclosed in a Steel Case Coated to Resist Corrosion
- Includes 11/32 x 1-1/2 in. (9 x 38 mm) sensing bulb
- Applications: Industrial engines and equipment in Oil Field, Marine, Irrigation Construction and Trucking industries. Monitoring Engine Coolant, Crankcase Oil and Transmission Oil
PRODUCT SPECIFICATIONS:
- Part No.: 20SD-250-1/2
- Range: 130-250°F (60-121°C)
- Dial: White on black; U.S.A. standard scale is dual scale °F/°C
- Case: Plated steel
- Bezel: Polished stainless steel
- Pointer: Tempered nickel silver
- Lens: Polycarbonate, high-impact
- Sensing Element: Beryllium copper diaphragm
- Sensing Bulb: Copper
- Gage Accuracy: Temperature Range 130 to 250°F (54 to 121°C); Lower 1/3 of Scale ± 9°F (± 5°C); Middle 1/3 of Scale ± 5°F (± 2.4°C); Upper 1/3 of Scale ± 4°F (± 2°C)
- Maximum Temperature: 310°F (154°C)
- Standard Setting: 210°F (99°C)
- Adapter Nut: 1/2-14 NPT
- Adjustable Limit Contact: SPST contact; pilot duty only, 2 A @ 30 VAC/ VDC; Ground path through encasement. Normally Closed (NC) when the high limit is met. Normally Open (NO) 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
- Limit Contact Wire Leads: 18 AWG (1.0 mm2) x 12 in. (305 mm)
- Unit Weight: 12.7 oz. (0.39 kg)
- Unit Dimensions: 4-3/4 x 4-3/4 x 2-3/4 in. (121 x 121 x 70 mm)
Product Condition: NEW
Murphy 130-250F Direct Mount Temperature Swichgage 1/2-14 NPT with Sensing Bulb 20SD-250-1/2
