P830 – Ultra-High Purity Pressure Gauge

Key Features

Available nominal diameters

50 mm (2") or 63 mm (2 ½")

Accuracy

ASME Grade A ±2.0%/±1.0%/±2.0%, EN837-1 Class 1.6 or optional Class 1.0

Bourdon tube

C-type (<6 MPa) or helical type (≥6 MPa)

Leak rate option

tested to ≤ 10⁻⁹ mbar ℓ/sec

Operating temperature

Ambient −40°C to +60°C, Medium up to +100°C

• Designed for ultra-high purity gas distribution in semiconductor and related industries
• Dual scale (bar/psi) white aluminum dial with black/red lettering
• Electropolished 316L stainless steel construction

Models

• P830 – Standard ultra-high purity gauge, 316L stainless steel

Connections

Pressure connection

1/4” NPT male, or VCR male/female face seal

Mounting options

Low mount (LM) or center back mount (CBM)

• Gauge port configurations per order code

Pressure Ranges

Working pressure

75% of full-scale value (steady), 67% (fluctuating)

• Scale ranges from 0.1 MPa vacuum to 25 MPa

Temperature Range

Ambient

−40°C to +60°C

Medium

up to +100°C

Materials

Pressure element

316L stainless steel

Movement

304 stainless steel

Dial

white aluminum with dual scale bar/psi

Pointer

black aluminum

Case

304 stainless steel electropolished with pressure relief

Ring and window

twist-lock polycarbonate

Seal Material Options

• N/A (Gauge does not use internal soft seals)

Flow Capacity

• Not applicable (mechanical gauge)