Ultra high purity pressure gauge (EP grade)_P820 series (316L type double melt)

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Ultra high purity pressure gauge (EP grade)_P820 series (316L type double melt)

High-quality products, preferential prices, perfect after-sales service




Detailed Introduction

Service intended

P820 series are specially designed for the ultra-high purity gas distribution system used in a 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

Standard features

Pressure connection Type 316L SS double melt 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 SS
<6 MPa : C-type bourdon tube
≥6 MPa : Helical type bourdon tube
Case Type 304SS, 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 mbar • ℓ/sec
Certificates ATEX Ex II GD c IIC TX


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