Differential Pressure Gauge
Our range of differential pressure gauge has earned a high reputation in industries such as offshore oil engineering, chemical, power generation, mechanical and metallurgy.
Used to measure the pressure difference between two measuring points, this mechanical pressure gauge supports direct indication of the pressure difference on its dial plate.
Model Selection Guides
Static pressure refers to the designed pressure of pipeline on measuring points, and it is one of the necessary data that needed for pressure gauge selection. Measuring range is another important data.
To select a proper type f pressure gauge, it is important to know the proportional relationship between measuring range and static pressure.
Classifications
1. Micro Differential Pressure Gauge
The pressure measuring instrument is compatible with dry and non-corrosive gases. It is often used on ventilation installation of boilers, gas pipelines, burning devices, and so on.
| Model | |
| Measuring range | 0~1~1.6~2.5…25~40 KPa |
| Max. static pressure | 400 KPa |
| Dial diameter | 63mm , 100mm, 150mm |
| Accuracy | /-2.5 |
| Working temperature | Maximally 80 ℃ |
| Housing material | 304SS, 316SS |
| Measuring element material | Copper alloy, 304SS, 316SS, 316LSS |
| Connection | ( ) for high pressure end, ( - ) for low pressure end M14*1.5, M20*1.5, 1/2" NPT, 1/4" NPT, G 1/2", G 1/4", or customized |
| Protection grade | IP56 |
| Installation method | Radial direction installation with flanged brim Axial direction installation |
| Special designs | With electrical contact and stainless steel 3- or 5-valve manifolds |
2. Differential Pressure Gauges with Double Bourdon Tubes
Designed for measuring the pressure of liquids and gases which are non-crystallizing, non-solidifying, and not corrosive to stainless steel.
| Model | |
| Measuring range | 0~0.1~0.16…4~6~10~16~25 MPa |
| Max. static pressure | Two-pressure level higher than corresponding measuring range For instance, if the measuring range is 0-0.16MPa, and the following two pressure ratings are 2.5Mpa and 4Mpa, then the max. static pressure is 4Mpa |
| Dial diameter | 100mm 150mm |
| Accuracy | /-1.6%, /-2.5% |
| Working temperature | Maximally 160 ℃ (when heat sink is adopted, the maximum temperature can be 350 ℃ ) |
| Housing material | 304SS, 316SS |
| Measuring element material | 316LSS |
| Connection | ( ) for high pressure end, ( - ) for low pressure end M20*1.5, 1/2" NPT, G 1/2", or customized |
| Protection grade | IP56, IP67 |
| Installation method | Radial direction installation with flanged brim Axial direction installation with flanged brim |
| Special designs | With electrical contact and stainless steel 3- or 5-valve manifolds |
| Filling liquid for counter assembly | Threaded or flanged capillary tube connection |
3. Double Bellows Differential Pressure Gauge
This style of differential pressure gage is ideal for liquid and gas pressure measurement. It is only applicable for liquids and gases which are non-crystallizing, non-solidifying, and not corrosive to stainless steel.
| Model | |
| Measuring range | 0~25~40 KPa |
| Max. static pressure | 0.6MPa |
| Measuring range | 0~60~100~160~250~400~600 KPa |
| Max. static pressure | 1.6MPa |
| Dial diameter | 100mm 150mm |
| Accuracy | /-1.6%, /-2.5% |
| Working temperature | Maximally 160 ℃ (when heat sink is adopted, the maximum temperature can be 350 ℃ ) |
| Housing material | 304SS, 316SS |
| Measuring element material | 304SS, 316SS, 316LSS |
| Connection | ( ) for high pressure end, ( - ) for low pressure end M20*1.5, 1/2" NPT, G 1/2", or customized |
| Protection grade | IP56, IP67 |
| Installation method | Radial direction installation with flanged brim Axial direction installation with flanged brim |
| Special designs | With electrical contact and stainless steel 3- or 5-valve manifolds |
| Filling liquid for counter assembly | Threaded or flanged capillary tube connection; In radial direction installation, the connector can be classified into two styles: paralleled and 90° angle types |
