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Ashcroft 451259 pressure gauge, 4 1/2 inch dial, black case, glass lens, 1/2 inch NPT bottom connection

Ashcroft

Ashcroft 451259 pressure washer part, 0-30 psi, 4 1/2 in dial, 1/2 in NPT

SKU CH-D613-SZ10S

A 4 1/2 inch dial process pressure gauge measuring 0 to 30 psi with a 1/2 inch NPT bottom connection

  • +/- 0.5 % accuracy for precise readings
  • 4 1/2 inch dial for clear visibility
  • 1/2 inch NPT male connection fits standard fittings
  • Glass lens resists scratches and chemicals
  • 0 to 30 psi range suits low-pressure systems

Ashcroft 451259 Process Pressure Gauge

The Ashcroft 451259 is a process pressure gauge built for monitoring hydraulic or pneumatic systems up to 30 psi. It suits plant engineers and maintenance crews who need a panel-ready instrument with a 4 1/2 in dial and 1/2 in NPT male bottom connection.

Accuracy and environmental limits

Accuracy is rated at +/- 0.5 percent of span across the 0 to 30 psi range. The gauge carries no IP or NEMA rating, has no vibration resistance, and is not field fillable, so it must be installed in a protected, low-vibration location.

1/2 in NPT male bottom connection

The single specification that decides fit is the 1/2 in NPT male process connection located at the bottom of the case. Verify that the mating port matches this thread size, gender, and orientation before ordering.

Highlights

  • +/- 0.5 % accuracy for precise readings
  • 4 1/2 inch dial for clear visibility
  • 1/2 inch NPT male connection fits standard fittings
  • Glass lens resists scratches and chemicals
  • 0 to 30 psi range suits low-pressure systems

Specifications

BrandASHCROFT

Questions about this item

Is the 4 1/2 inch dial the right size for my panel?

The 4 1/2 inch dial is a standard panel-mount size; check your cut-out dimensions against the gauge case to confirm fit.

What does the 0 to 30 psi range mean for daily use?

The gauge reads from zero up to 30 psi, so it suits low-pressure water or air lines where the normal operating pressure stays well inside that span.

Does the 1/2 inch NPT male connection thread directly into my pump?

Yes, the 1/2 inch NPT male bottom connection threads into a matching female port; seal with tape or paste rated for the system pressure.

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