The Model 126/127 Series differential pressure indicator with optional switch is a piston-type gauge. It is low cost and reliable for measuring pressure drop across filters, strainers and separators.
The Model 146 Series differential pressure indicator is a diaphragm-type ∆P gauge that has total separation between the high and low sides. Additionally, switch options are available.
The Model 444 Series Differential Pressure Indicator offers a simple, yet functional design for use with filters, strainers, etc. Indication –Green / Red Sliding Indication with Nylon Lens. This low cost indicator makes the perfect alternative to more costly differential pressure gauges where readability, small size and price are important considerations.
Model 522 OEM – Mid-West Instrument rolling diaphragm type gauge is a very competitively price gauge/switch. The Model 522 Differential Pressure Gauge & Switch is compact and weather resistant for challenging DP Applications and installations. It is suitable for use in outdoor and “Hose Down” applications. Available with our popular DIN Plug connector or Flat Pack Switch. Both are available in a SPDT or SPST configurations . Model 522 is available with a Full scale accuracy of ±5% (0-5 PSID to 0-50 PSID)
The Model 555 Series Differential Pressure Gauge offers a two-sided dial, for use with filters, strainers, etc. 555 Provides easier installation regardless of flow direction. The rolling diaphragm sensing element isolates the high and low side of the indicator assuring filter efficiency (Reverse pressure must be avoided) While this low cost gauge is a “step up” from the Model 444, it still provides another alternative to the more costly differential pressure gauges with equivalent functionality. No switch options available.
| Model No. | Differential Pressure Range | Accuracy | Working Pressure | Electrical Available | Specifications | Installation/ Operation Manual | Electrical IOM | Drawing |
|---|---|---|---|---|---|---|---|---|
| Model 126 | 0-5 PSID to 0-20 PSID | ±5% | 3,000 PSI | Available CE Marked to LVD & RoHS | N/A | N/A | ||
| Model 127 | 0-25 PSID to 0-100 PSID | ±5% | 3,000 PSI | Available CE Marked to LVD & RoHS Directives | N/A | N/A |
| Model No. | Differential Pressure Range | Accuracy | Working Pressure | Electrical Available | Specifications | Installation/ Operation Manual | Electrical IOM | Drawing |
|---|---|---|---|---|---|---|---|---|
| Model 146 | 0-3 PSID (0-50" H2O) to 0-30 PSID | ±5% | 1,000 PSI | Electrical Enclosures Weather-Resistant, NEMA 4X | N/A | N/A | ||
| Model 444 | 0-5 PSID to 0-30 PSID | ±5% | 300 PSI | None available | N/A | N/A | N/A | |
| Model 522 (OEM)OEM | 0-5 PSID to 0-50 PSID | ±5% | 1,000 PSI | Available CE Marked to LVD & RoHS Directives, SPST & SPDT Switches | N/A | N/A | N/A | N/A |
| Model 555 (OEM)Tri-Color | 0-3.5 PSID to 0-43 PSID | ±5% | 300 PSI | Not Available | N/A | N/A |
