Description
The Ashcroft 52212459 — cross-referenced as the WIKA 212.53 — is a heavy-duty, 2.5-inch dry case industrial Bourdon tube pressure gauge engineered for reliable, accurate pressure measurement in demanding commercial and industrial environments. Built with a 304 stainless steel case and an O-ring sealed connection, this gauge delivers exceptional durability and corrosion resistance in harsh service conditions, including high vibration and pulsation applications when liquid-filled.
Key Features
- Dial Size: 2.5" (63mm)
- Pressure Range: 0–400 PSI / 0–400 Bar (dual scale)
- Process Connection: 1/4" NPT
- Connection Location: Lower mount (bottom connection)
- Case Type: Dry case (field liquid fillable via O-ring sealed connection)
- Case Material: 304 Stainless Steel
- Wetted Parts: Copper alloy (Bourdon tube and movement)
- Accuracy: ±2-1-2% of span (ASME B40.100 Grade A)
- Compatible Media: Gases and liquids compatible with copper alloy internals






