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Mid-West 109 Aluminum Differential Pressure Gauge, 4.5" Dial, 0 to 1500 psig (0 to 15 psid), 1/4 NPTF SS Back Mount
Mid-West® Instrument Model 109 Bourdon Tube ΔP Gauge – ± 1/2% or ± 1% Full Scale Accuracy. System pressure is applied to the inside of a slightly flattened arc- shaped tube. As pressure increases, the tube tends to restore to its original round cross-section. This change in cross-section causes the tube to straighten. Since the tube is permanently fastened at one end, the tip of the tube traces a curve that is the result of the change in angular position with respect to the center. Model 109 is powered by a test quality Bourdon Tube Assembly. The assembly is encapsulated in a high pressure chamber that is fitted with a pressure connection to the inside of the Bourdon Tube and a second connection to the pressure chamber. The Model 109 indicates the difference between the pressure applied inside the Bourdon Tube and the pressure inside the chamber.
The Model 109 Bourdon Tube Assembly is protected against over-range in either direction to the rated working pressure by a bi-directional relief valve. The output shaft of the gauge assembly is magnetically coupled through the solid wall of the pressure chamber to a sensitive jeweled pointer shaft in the dial housing outside the chamber. The magnetic coupling transmits the exact motion of the assembly to the pointer to give an accurate dial reading of the differential pressure.
NOTE: The use of diaphragm seals is not recommended for Model 109 series gauge. Attempts to install such seals on these gauges will void the warranty
Features
- Weather-resistant case of "engineered plastic" with shatter-resistant acrylic lens and panel mounting kit.
- Black letters on white dial.
- Includes Calibration Certificate
- 4-1/2" Round dial case
- 0 to 1500 PSIG
- 0 to 15 PSID
- Aluminum body
- SS internals
- 1/4" FNPT back connections (316 stainless steel)
- ± 1% Full Scale Accuracy, Uni-Directional
- Buna N (aka NBR or Nitrile) Seals
Mid-West® Instrument Model 109 Bourdon Tube ΔP Gauge – ± 1/2% or ± 1% Full Scale Accuracy. System pressure is applied to the inside of a slightly flattened arc- shaped tube. As pressure increases, the tube tends to restore to its original round cross-section. This change in cross-section causes the tube to straighten. Since the tube is permanently fastened at one end, the tip of the tube traces a curve that is the result of the change in angular position with respect to the center. Model 109 is powered by a test quality Bourdon Tube Assembly. The assembly is encapsulated in a high pressure chamber that is fitted with a pressure connection to the inside of the Bourdon Tube and a second connection to the pressure chamber. The Model 109 indicates the difference between the pressure applied inside the Bourdon Tube and the pressure inside the chamber.
The Model 109 Bourdon Tube Assembly is protected against over-range in either direction to the rated working pressure by a bi-directional relief valve. The output shaft of the gauge assembly is magnetically coupled through the solid wall of the pressure chamber to a sensitive jeweled pointer shaft in the dial housing outside the chamber. The magnetic coupling transmits the exact motion of the assembly to the pointer to give an accurate dial reading of the differential pressure.
NOTE: The use of diaphragm seals is not recommended for Model 109 series gauge. Attempts to install such seals on these gauges will void the warranty
Features
- Weather-resistant case of "engineered plastic" with shatter-resistant acrylic lens and panel mounting kit.
- Black letters on white dial.
- Includes Calibration Certificate
- 4-1/2" Round dial case
- 0 to 1500 PSIG
- 0 to 15 PSID
- Aluminum body
- SS internals
- 1/4" FNPT back connections (316 stainless steel)
- ± 1% Full Scale Accuracy, Uni-Directional
- Buna N (aka NBR or Nitrile) Seals
Specifications
| Gauge: Brand | Mid-West |
| Gauge: Product Unit of Measure | psid, psig |
| Gauge: Process Connection Location | Back Mount |
| Gauge: Case Material | Aluminum |
| Gauge: Wetted Material | Stainless Steel |
| Gauge: Dial Size | 4-1/2 in (110 & 115 mm) |
| Gauge: Process Connection Size | 1/4 NPT Female |
| Gauge: Accuracy | ±1% |
| Gauge: Measuring Principle | Bourdon Tube |
| Gauge: Pressure Type | Differential Pressure |
| Gauge: Model | 109 |
| Gauge: Scale Range | ≥ 10 psi (0.6 bar) to ≤ 15,000 psi (1,000 bar) |
| Gauge: Type | Differential Gauge |