Model 130

Diaphragm Type

Model 130 – Mid-West Instrument convoluted diaphragm type gauge is our most versatile and customizable differential pressure gauge to fit your most demanding requirements. Available with multiple switch options including Hazardous location options. With a Full scale accuracies of ±5% (0-5” to 0-9.9” H2O) and ±3/2/3% (0-10” to 0-15 PSID /400” H2O) this rugged design is ready to do the job.

Order Online Now

Product Features/Benefits

  • Rugged Convoluted Diaphragm Design
  • Glass Reinforced Thermoplastic Dial Case (Panel Mountable) (Anodized Aluminum Dial Case Option Available. Contact sales for more information)
  • Weather Resistant & Corrosion Resistant Over-Range Protection, High Over Low and Low Over High
  • 5 Year Warranty
  • For complete model details See Bulletin_130.pdf
  • Installation and Operation Manual See Bulletin: IOM_130.pdf

Specifications / Configuration

  • Dial Sizes Available: 3-1/2” and 4-1/2”Diameters
  • Dial Scale Ranges: 0-5” H2O to 0-400” H2O /15 PSID (0-12.4 mbar to 0-1 bar)
  • Differential Full Scale Ascending Accuracy 0-5” H2O to 0-9.9” H2O ±5% (ASME B40.1 Grade D)
  • Differential Full Scale Ascending Accuracy 0-10” H2O to 0-15 PSID ±3/2/3% (ASME B40.1 Grade B)
  • Available in a Variety of Dial Scales: Bar, Mbar, kPa, Kg/Cm2, Dual Scale, etc.
  • Working Pressures up to 500 PSIG (34 bar)
  • Operating Temp -40°F to +200°F (-40°C to +93°C)
  • Weather Protection NEMA 4X/IP65 (Specific Options)
  • Material of Construction of Body – Polysulfone Engineered Plastic, Brass, Aluminum and 316/316L Stainless Steel (Wetted Part)
  • Internal Wetted Parts-316 Stainless Steel, Ceramic Magnet
  • Elastomers (O-ring and Diaphragm Materials): Buna-N (No range limitations)
    Viton (0-20” H2O to 0-400” H2O)
    Silicone (0-5” H2O to 0-100” H2O)
    Neoprene (0-5” H2O to 0-100” H2O)
    Ethylene Propylene (0-20” H2O to 0-400” H2O)
  • For complete specifications see: Specificationsheet_130.pdf

Common Applications

  • Selective Catalytic Reduction (SCR)
  • Flow Indication & Balancing
  • Filter Monitoring for Gases
  • Anhydrous Ammonia Applications
  • Water Treatment Applications
  • Vacuum Applications

Switch Electrical Specifications:

See Bulletin ELECIOM_130

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. All Switches are CE marked per EU Low Voltage and RoHS Directive except for Explosion Proof Hazardous location switches which are CSA & UL Listed

  • No Power required to operate switches
  • 1-2 Independent adjustable Switches
  • Available Switch  Output Options
    • SPDT 3W, 0.25 Amp, 125 VAC/VDC (CE Marked to Low Voltage and RoHS Directives
  • Electrical Enclosures Weather-Resistant, NEMA 4X
  • Hazardous Locations(NEMA7)
    • Class I Division I Groups C & D, Class II, Division I, Groups E,F & G
    • Complete assembly 3rd Party Certified

Additional Options:

  • Pipe Mounting Kit - 2" U-Bolt
  • Wall Mounting Kit
  • Oxygen Cleaning
  • Maximum Follower Pointer
  • NACE Compliance
  • CRN – Canadian Registration Number (Polysulfone and Stainless Steel bodies only)

The Mid-West Advantage

“Diaphragm Type” Gauges with Electrical Optional

Model No. Differential Pressure Range Accuracy Working Pressure Electrical Available Specifications Installation/ Operation Manual Electrical IOM Drawing
Model 114 0-0.72 PSID (0-20" H20) to 0-20 PSID (0-600" H2O)
Tank Level Applications
±2% 1000 PSI CE / LVD, RoHS Compliant, NEMA 4X, 4-20mA Transmitter
Model 130 0-5" H2O to 0-15 PSID (0-400" H2O) 0-5" H2O to 0-9.9" H2O
±5%
0-10" H2O to 0-15 PSID
±3/2/3%
Up to 500 PSI CE / LVD, RoHS Compliant, NEMA 4X, Class 1-Div. 1
Model 140 0-50" H2O to 0-100 PSID 0-50" H2O to 0-399" H2O
±5%
0-15 PSID to 0-100 PSID
±3/2/3%
Up to 3,000 PSI CE / LVD, RoHS Compliant, NEMA 4X, Terminal Strip, Class 1-Div. 1, Class 1-Div. 2, 4-20mA Transmitter N/A
Model 142 0-20" H2O to 0-25 PSID ±3/2/3% Up to 3,000 PSI CE / LVD, RoHS Compliant, NEMA 4X, Terminal Strip, Class 1-Div. 2, 4-20mA Transmitter
Model 522 0-5 PSID to 0-50 PSID ±5% 1,000 PSI CE / LVD, RoHS Compliant N/A

Electrical “Diaphragm Type” Gauges

Model No. Differential Pressure Range Accuracy Working Pressure Electrical Available Specifications Installation/ Operation Manual Electrical IOM Drawing
Model 240 0-20" H2O to 0-100 PSID ±3/2/3% Up to 1500 PSI CE / ATEX / RoHS Compliant CSA, UL & KOSHA CERTIFIED, NEMA 4X, Terminal Strip, Class 1-Div. 1, Class 1-Div. 2, 4-20mA Transmitter N/A
Model 700 / 710 / 715 0-5 PSID to 0-300 PSID ±0.50% 2,900 PSI 2-Wire
4-20 mA Transmitter 15-28 VDC, LCD = 4-20 mA Transmitter 18-28 VDC, LED = 4-20 mA Transmitter 20-28 VDC
3 Wire
15-28 VDC/1-5 VDC, 15-28 VDC/0-5 VDC, 15-28 VDC/0-10 mADC, 15-28 VDC/0-20 mADC, 15-28 VDC/0-10 VDC
N/A

“Indicator”  Style Diaphragm Type Gauges

Model No. Differential Pressure Range Accuracy Working Pressure Electrical Available Specifications Installation/ Operation Manual Electrical IOM Drawing
Model 522C3-Color Dial 0-5 PSID to 0-50 PSID ±5% 1,000 PSI CE / LVD, RoHS Compliant N/AN/A
Model 555A3-Color Dial 0-3.5 PSID to 0-43 PSID ±5% 300 PSI Not Available N/AN/A