P428,P429_Diaphragm type low pressure gauge
Service intended
P428 and P429 series are consisted of diaphragms which are designed to protect device and designed to isolate pressure gauge from corrosive, contaminative and viscous pressure media.
| Nominal diameter | 100 and 150 mm |
| Accuracy | ±1.5 % of full scale |
| Scale range (kPa, mbar) | -1 ~ 0 to -35 ~ 0 kPa 0.5 to ±15 kPa 0 ~1 to 0 ~ 35 kPa |
| Working temperature | Ambient : -20 ~ 65 °C Fluid : Max. 100 °C |
| Temperature effect | Accuracy at temperature above and below the reference temperature (20 ℃) will be effected by approximately ±0.8 % per 10 ℃ of full scale |
Standard features
| Process connection | Model P428 : PT and NPT, others feasible Model P429 : Flanges to ANSI, JIS or other standard |
| Upper flange (Gauge side) | Stainless steel (304SS, 316SS) |
| Under flange (Process side) | Stainless Steel (304SS, 304L SS, 316SS, 316L SS) Monel, Hastelloy-C |
| Diaphragm | 316L SS |
| Certificates | ATEX II 2G Ex h IIC T6…T1 Gb ATEX II 2D Ex h IIIC T85°C….T450°C Db |
| Option | Diaphragm : PTFE lining Under flange : PTFE lining PTFE coating |
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