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Ashcroft 4-1/2in dial process pressure gauge black aluminum case glass lens IP66

Ashcroft

Ashcroft 451379 4-1/2in 0-160 psi IP66 process pressure gauge

SKU CH-48MH-8HY41

4-1/2 inch process gauge measures 0-160 psi with ±0.5% accuracy, IP66-rated aluminum case, glass lens and 1/2 NPT bottom connection

  • Size/Dimensions4-1/2"
  • TypeElectronic
  • ±0.5 % accuracy for precise readings
  • IP66 and NEMA 4X rating resists dust and water
  • 0–160 psi range covers common process pressures
  • 4-1/2 in dial gives clear visibility
  • Aluminium case with glass lens withstands harsh environments

Industrial process pressure gauge

The Ashcroft 451379 is a 4-1/2 inch process pressure gauge built for industrial monitoring. It measures from 0 to 160 psi with an accuracy of +/- 0.5 percent. The gauge suits plant engineers and maintenance teams who need reliable local indication on pressurised systems.

Aluminium case with IP66 protection

The black aluminium case carries an IP66 and NEMA 4X rating for dust and water ingress resistance. A 1/2 inch male NPT connection at the bottom mounts directly into process piping. The glass lens protects the white dial, and the case is field-fillable for liquid dampening if vibration resistance is required later.

Replaces smaller or lower-rated gauges

This unit upgrades installations where a smaller dial or lower IP rating left readings hard to see or the case vulnerable to wash-down. The jump is worth it when the application demands the 4-1/2 inch face for visibility and the IP66 enclosure for harsh environments. It does not suit buyers who need a digital output or a different pressure range.

Highlights

  • ±0.5 % accuracy for precise readings
  • IP66 and NEMA 4X rating resists dust and water
  • 0–160 psi range covers common process pressures
  • 4-1/2 in dial gives clear visibility
  • Aluminium case with glass lens withstands harsh environments

Specifications

BrandASHCROFT
Size/Dimensions4-1/2"
TypeElectronic

Questions about this item

What does the IP66 rating mean for this 451379 gauge in practice?

IP66 means the case is dust-tight and protected against powerful water jets, so it survives wash-downs and outdoor exposure without ingress.

What process connection size and thread type does the 4-1/2in dial gauge require?

It uses a 1/2 in male NPT bottom connection, so the mounting port must accept that thread size and orientation.

How is the gauge installed and what step is often missed?

Thread the 1/2 in NPT male connection into the process port, tighten with a wrench on the case flats, then fill the case with damping fluid through the fill plug before sealing it.

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