Model 123
Piston Type Gauges
Model 123 – Used on systems with high differential pressure requirements, the Model 123 offers a differential pressure ranges from 0-150 PSID to 0-400 PSID. The Model 123 offers safe working pressures up to 4,000 PSI, With a Full scale accuracy of ±3/2/3%. Model 123 is a versatile, accurate differential pressure gauge for your high differential pressure range most demanding DP requirements.
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Product Features/Benefits
- Rugged Piston Type design Sensing Element
- Glass Reinforced Thermoplastic Dial Case (Panel mountable)(Anodized Aluminum Dial Case Option available contact sales for more information)
- Weather Resistant & Corrosion Resistant
- Shatter Resistant Lens
- Over-Range Protection, High over Low and Low over High
- 5 Year Warranty
- For complete model details See Bulletin_123a.pdf
- Installation and Operation Manual See Bulletin: im123.pdf
Specifications / Configuration
- Dial Sizes available: 2-1/2”, 4-1/2” and 6” Diameters
- Differential Full Scale Ascending Accuracy ±3/2/3% (ASME B40.1 Grade B)
- Dial Scale Ranges: 0-150 PSID to 0-400 PSID (0-10 bar to 0-27.0 bar)
- Available in a Variety of Dial Scales: Bar, Mbar, kPa, Kg/Cm2, Dual Scale etc.
- Working Pressures up to 5000 PSIG (340 Bar)
- Operating Temp -40°F to +200°F (-40°C to +93°C)
- Weather Protection NEMA 4X
- Material of Construction of Body –Aluminum, 316/316L Stainless Steel (Wetted Part)
- Internal wetted parts-316 Stainless Steel Piston & Ceramic Magnet
- Available with End connections only
- O-ring Materials: Buna-N, Viton, Neoprene, and Ethylene Propylene
- For complete specifications see: Specificationsheet_123.pdf
Common Applications
- Filter and Strainer Monitoring
- Compressed Air
- Hydraulic
- Refrigerant
- Pump Performance testing
- Heat Exchanger Pressure Drop Monitoring
Switch Electrical Specifications:
See Bulletin ELECIOM_123
Mid-West Instrument switches are mechanically adjustable allowing customer to set the switch within a defined adjustment span of range of the instrument. Mid-West can also pre-set switch set point(s) upon customer request.
- No Power required to operate switches
- 1-2 Independent adjustable Switches
- Available switch output options
- SPDT 3W, 0.25 Amp, 125 VAC/VDC
- SPST 60W, 3.0 Amp, 240 VAC/VDC (Normally Open)
- SPDT 60W, 3.0 Amp, 240 VAC/VDC (Normally Closed)
- SPST 60W, 3.0 Amp, 240 VAC/VDC (1) Normally Open, (1) Normally Closed
- SPDT 60W, 1.0 Amp, 240 VAC/VDC
- Electrical Enclosures Weather-Resistant, NEMA 4X
- Switch Options (Non Hazardous Locations) CE Marked to Low Voltage and RoHS Directives
- DIN Connector Option
- Hazardous Locations Options
- Class I Division II, Groups A, B, C & D; Class II Division II, Groups F & G
Additional Options:
- Pipe Mounting Kit - 2" U-Bolt
- Wall Mounting - Rear Mount
- Rear Mounting Holes
- Liquid Fill
- Oxygen Cleaning
- Maximum Follower Pointer
- NACE Certification
The Mid-West Advantage
- 5 year warranty
- 30 + Years Hazardous Location product manufacturer.
- OEM and Private Label Capabilities
- Fast on-time Deliveries
- Friendly Customer Support
- Certified Quality System CSA B51-09 SAI GLOBAL
“Piston Type” Gauges with Electrical Optional
| Model No. | Differential Pressure Range | Accuracy | Working Pressure | Electrical Available | Specifications | Installation/ Operation Manual | Electrical IOM | Drawing |
|---|---|---|---|---|---|---|---|---|
| Model 120 | 0-5 PSID to 0-110 PSID | ±3/2/3% | Up to 6,000 PSI | CE / LVD, RoHS Compliant, NEMA 4X, Flying Leads / DIN Connector, Class 1-Div. 1, Class 1-Div. 2 | ||||
| Model 122 | 0-5 PSID to 0-110 PSID | ±5% | 3,000 PSI | CE / LVD, RoHS Compliant | ||||
| Model 123 | 0-150 PSID to 0-400 PSID | ±3/2/3% | Up to 4,000 PSI | CE / LVD, RoHS Compliant, NEMA 4X, Flying Leads / DIN Connector, Class 1-Div. 2 | ||||
| Model 124 | 0-5 PSID to 0-110 PSID and 0-150 PSID to 0-400 PSID |
±3/2/3% | 10,000 PSI | CE / LVD, RoHS Compliant, NEMA 4X, 4-20mA Transmitter |
Electrical “Piston Type” Gauges
| Model No. | Differential Pressure Range | Accuracy | Working Pressure | Electrical Available | Specifications | Installation/ Operation Manual | Electrical IOM | Drawing |
|---|---|---|---|---|---|---|---|---|
| Model 121 | 0-5 PSID to 0-100 PSID | ±3/2/3% | Up to 6,000 PSI | CE / LVD, RoHS Compliant, NEMA 4X,Terminal Strip, Class 1-Div. 2, 4-20mA Transmitter | N/A | |||
| Model 220 | 0-5 PSID to 0-100 PSID | ±3/2/3% | Up to 4,000 PSI | CE / ATEX / RoHS Compliant, KOSHA CERTIFIED, NEMA 4X, Terminal Strip, Class 1-Div. 1, Class 1-Div. 2, 4-20mA Transmitter | N/A |
