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Ashcroft 451379 process pressure gauge black aluminum case white dial glass lens bottom connection 4 1/2 in IP66

Ashcroft

Ashcroft 451379 Process Pressure Gauge 0-1500 psi 4 1/2 in IP66

SKU CH-AKCW-VTBYS

Measures process pressure to 1,500 psi with ±0.5% accuracy in an IP66-rated aluminium case

  • Length6.300
  • Width3.900
  • Color/FinishBlack
  • TypeMicrometers
  • Accurate readings within ±0.5 % full scale
  • IP66 and NEMA 4X rating resists dust and water ingress
  • 4 1/2 in dial gives clear visibility at distance
  • Field-fillable design allows on-site liquid damping
  • 1/2 in NPT male connection fits standard process piping

Ashcroft 451379 Process Gauge

The Ashcroft 451379 is a process pressure gauge built for industrial monitoring. It reads from 0 to 1,500 psi on a 4 1/2 inch dial with +/- 0.5 percent accuracy. The aluminum case carries an IP66 and NEMA 4X rating for harsh environments. It suits plant engineers and maintenance crews who need reliable local indication.

Upgrade from lower-rated gauges

Replace gauges that lack IP66 protection or the stated accuracy class when the process demands tighter tolerance. The jump is worth it when vibration or wash-down conditions damage lesser models. The 1/2 inch NPT male bottom connection fits standard process taps. Liquid-filled dampening is available for severe vibration service.

Verify connection and range before ordering

Confirm the 1/2 inch NPT male thread matches your existing process port. Ensure the 0 to 1,500 psi span covers your normal operating pressure with safe over-range margin. Check that the 4 1/2 inch dial face fits the panel or pipe stand clearance. The glass lens and black aluminum case suit outdoor or wash-down areas.

Highlights

  • Accurate readings within ±0.5 % full scale
  • IP66 and NEMA 4X rating resists dust and water ingress
  • 4 1/2 in dial gives clear visibility at distance
  • Field-fillable design allows on-site liquid damping
  • 1/2 in NPT male connection fits standard process piping

Specifications

BrandASHCROFT
Length6.300
Width3.900
Color/FinishBlack
TypeMicrometers

Questions about this item

What size NPT thread does the 4 1/2 in gauge use for mounting?

The process connection is a 1/2 in male NPT thread located at the bottom of the case.

Which step is often missed when installing this liquid-fillable gauge?

After threading the 1/2 in NPT connection, the fill plug must be vented or opened to allow the dampening fluid to settle correctly.

How often should the glycerine fill be checked or replaced on this IP66 model?

Inspect the liquid level annually; top up with glycerine if the dial shows air bubbles or the pointer becomes erratic.

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