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Ashcroft process pressure gauge, 4 1/2 inch white dial, black polybutylene terephthalate case, glass lens

Ashcroft

Ashcroft 451259 Process Pressure Gauge 0-15 psi 4 1/2 in Dial

SKU CH-E2RK-JQMTS

Measures process pressure from 0 to 15 psi with a 4 1/2 inch dial and ±0.5 percent accuracy

  • Product typeElectronic
  • +/- 0.5 % accuracy for precise readings
  • 4 1/2 in dial gives clear visibility
  • 0 to 15 psi range suits low-pressure work
  • 1/2 in NPT male connection fits standard fittings
  • Glass lens with PBT case resists harsh environments

Ashcroft 451259 Process Pressure Gauge

The Ashcroft 451259 is a process pressure gauge built for industrial and commercial measurement tasks. It provides a 0 to 15 psi primary pressure range with an accuracy of +/- 0.5 percent. The 4 1/2 in nominal dial size offers clear readability for operators monitoring system pressure. This instrument suits technicians and engineers who require reliable local indication in process environments.

Polybutylene terephthalate case with glass lens

The gauge case uses polybutylene terephthalate material in black with a white dial and glass lens. A 1/2 in male NPT process connection is located at the bottom for direct piping installation. The unit is not field fillable and carries no IP or NEMA rating. No dry dampening or vibration resistance features are included, so mounting should avoid high-vibration locations.

Replaces lower-accuracy or smaller-dial gauges

This model replaces gauges with wider error bands or smaller dials that are harder to read at a distance. The jump is worth it when a +/- 0.5 percent accuracy class and a 4 1/2 in dial improve operator confidence and recording precision. It does not suit buyers who need a fillable case for vibration damping or a rated enclosure for wash-down or outdoor exposure.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $60.99
Typical for this category: the median of 3,030 items is $54.99.

Specifications

Product
Brand nameASHCROFT
Product typeElectronic

Questions about this item

What accuracy does the Ashcroft 451259 gauge deliver across the 0 to 15 psi range?

The gauge is rated at +/- 0.5 percent of span, so readings stay within that tolerance across the full 0 to 15 psi scale.

What process connection size and thread type must the mounting port provide?

The gauge has a male 1/2 in NPT connection at the bottom, so the mounting port must accept that thread size and type.

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

Thread the male 1/2 in NPT connection into the process port using a wrench on the polybutylene terephthalate case flats, not the glass lens, and do not attempt to fill the case because it is not field fillable.

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