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Black phenolic process pressure gauge with 4 1/2 inch white dial and glass lens, bottom 1/2 inch male NPT connection

Ashcroft

Ashcroft 451279AS04L1000# Process Pressure Gauge 0 to 1000 psi 4 1/2 in

SKU CH-DXWB-80HT3

Measures process pressure from 0 to 1000 psi with ±0.5% accuracy on a 4 1/2 in phenolic case

  • Color and finishBlack
  • Product typeElectronic
  • ±0.5 % accuracy for reliable readings
  • 0 to 1000 psi range covers high-pressure tasks
  • Phenolic case resists corrosion and chemicals
  • Glass lens protects dial from damage
  • 1/2 in NPT male connection fits standard fittings

Precision Process Gauge

The Ashcroft 451279AS04L1000# is a process pressure gauge built for industrial measurement tasks. It covers a primary range of 0 to 1000 psi with an accuracy of +/- 0.5 percent. The nominal dial size is 4 1/2 in and features a white dial behind a glass lens for clear reading in plant environments.

Phenolic Case Construction

The gauge case uses black phenolic material chosen for chemical resistance and durability in harsh process settings. This material choice replaces metal housings where corrosion is a concern. The case carries no IP or NEMA rating and includes no dry dampening or vibration resistance features, so it suits steady, non-pulsating media.

Fixed Bottom Mount

A male 1/2 in NPT process connection is located at the bottom of the case for direct in-line installation. The connection is not field fillable, meaning the unit arrives ready for service without liquid filling steps. This fixed mounting style suits permanent pipeline or vessel taps where a bottom entry is required.

How it compares

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

Price $91.99
Pricier than about 62% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameASHCROFT
Color and finishBlack
Product typeElectronic

Questions about this item

Does the 4 1/2 in phenolic case require any periodic seal replacement?

The phenolic case is not field fillable and has no user-serviceable seals; it is designed to operate without internal fluid maintenance.

At sustained 1000 psi will the +/- 0.5 percent accuracy drift first?

The gauge maintains its rated +/- 0.5 percent accuracy across the full 0 to 1000 psi range with no internal dampening or vibration resistance to degrade.

Does the glass lens and bottom NPT connection run hot during continuous duty?

As a purely mechanical instrument it generates no heat; the glass lens and 1/2 in male NPT connection remain at ambient temperature all day.

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