diaphragm type absolute air pressure gauges
Features of Diaphragm Absolute Pressure Gauge
Accuracy: 2.5
Ambient temperature: -40 ~ +70 °C; relative humidity less than 90%
Temperature effect: When the temperature deviation from 20 ± 5 °C, the temperature of the additional error of less than 0.04% / °C
Working position: vertical installation.
Housing protection grade: IP64
Application
Outdoor and severe ambient and process conditions
Use where harmful vibration and pulsation are present
Hydraulic equipment, pressure washers,oil field equipment, pumps, compressors and process systems
| Name | Stainless Steel Pressure Gauge |
| Dials Size | 2"(50mm), 2.5“(63mm), 4”(100mm) and 6“ (150mm) |
| Case | SS304 |
| Pressure range | 0 -100Mpa,other scale units bar, psi, kg/cm2 etc.optional |
| Ring | Non, black steel or chrome plated |
| Movement | Brass,SS304 or SS316 |
| Socket | Brass,SS304 or SS316 |
| Bourdon tube | Phosphor Bronze,SS304 or SS316 |
| Dial plate and pointer | Aluminum |
| Window | Glass or Safety glass |
| Connection sizes | 1/8 for 1.5" case; 1/4 for 2",2.5" case, 3/8"&1/2" for 4",6"case |
| Connection threads | Metric Thread, NPT, BSP (G, PF), BSPT (ZG, PT) |
| Mounting | Bottom,back and panel |
| Accuracy | 2"(50mm), 2.5(63mm)-2.5% |
| 4(100mm) and 6 (150mm)-1.6% | |
| Pressure limitation | Steady: 3/4x full scale value |
| Fluctuation:2/3x full sacle value | |
| Short time:full scale value |
Mechanical Pressure Gauge
During insustrial controlling and measuring process. The elastic sensitive element of the mechanical pressure gauge is used widely in all kinds of industrial fields due to its high mechanical strength, low price and convenient production methods. The mechanical pressure gauge is often made of Bourdon tube, diaphragm, capsule or bellow tube. These elements should be elastic deformed by the medium pressure. The signals would be enlarged by the movements, and the pointer should then be able to point to the number on the dial, to indicate the pressure. The effective measuring range on the dial is usually within 270 degree of a circle.
