WISE(P820)

The P820 Series specifically designed for ultra high purity gas distribution system used in semiconductor industry and electronic, medical, biotechnology, pharmaceutical industry.

Service intended
P820 series are specifically designed for the uitra purity gas distribution system used in semiconductor electronic, medical, biotechnology and pharmaceutical industry.
Nominal diameter
50 (2") and 63 mm (2½")
Accuracy
  • Grade A (ASME B40.1) : 50 (2") and 63 mm (2½")
  • Grade B (ASME B40.1) : 50 (2") and 63 mm (2½")
Scale range
-0.1 ~ 0 to 0 ~ 28 MPa
Working pressure
  • Steady pressure : 75% of full scale value
  • Fluctuating pressure : 67% of full scale value
Working temperature
  • Ambient : -40 ~ 65 °C
  • Fluid : Max. 100°C
Temperature effect
Accuracy at temperature above and below the reference temperature (20℃) will be effected by approximately ±0.4% per 10℃ of full scale
Pressure connection
Type 316L SS electropolished
low mount or center back mount
surface finish Ra≤0.25㎛
¼" NPT male thread
VCRⓡ male or female face seal fitting
Element
Type 316L stainless steel
<6 MPa : C-type bourdon tube
≥6 MPa : Helical type bourdon tube
Case
Type 304 SS
Electropolished with pressure relief
Cover and Window
Twist-lock polycarbonate
Movement
Stainless steel
Dial
White aluminium with pointer stop pin
With black/red lettering, dual pressure scale (bar/psi)
Pointer
Black painted aluminium alloy
Helium leak rate
Tested to confirm leakage rates of less than 10-9 mbar • ℓ/sec
Certificates
ATEX Ex II GD c IIC TX

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