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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
±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
●SAmbient : -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
Upper flange (gauge side)
Stainless steel (304SS, 316SS)
316L SS
Under flange (Process side)
●Stainless Steel (304SS, 304L SS, 316SS, 316L SS)
●Monel, Hastelloy-C
Process connection
●Model P428 : PT and NPT, others feasible
●Model P429 : Flanges to ANSI, JIS or other standard
●Diaphragm and lower flange are available in PTFE
●Under flange : PTFE lining PTFE coating
●Zero adjustment : Internal (Only 100 mm)

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