We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black aluminum case process pressure gauge with white dial and glass lens, 1/2 inch NPT bottom connection

Ashcroft

Ashcroft 451379 Pressure Gauge 0-15 psi 4 1/2 in 1/2 in NPT IP66

SKU CH-037W-4YVRT

A 4½-inch process pressure gauge measuring 0 to 15 psi with ±0.5% accuracy, IP66-rated aluminium case and ½-inch NPT bottom connection

  • TypeElectronic
  • ±0.5% accuracy for reliable process readings
  • IP66 and NEMA 4X rating protects against dust and water ingress
  • 4 1/2 inch dial with white face and glass lens for clear visibility
  • 1/2 inch NPT male bottom connection fits standard piping
  • Aluminum case with black phenolic/thermoplastic finish resists corrosion

Industrial Process Gauge

The Ashcroft 451379 is a process pressure gauge built for industrial monitoring where reliable readings are essential. It suits plant engineers and maintenance teams tracking low-pressure media in piping or vessel systems. The 4 1/2 in dial provides clear visibility in control panels or field installations. Its IP66 and NEMA 4X ratings confirm suitability for wash-down and outdoor environments.

0-15 psi Range and Accuracy

The gauge covers a primary range of 0 to 15 psi with an accuracy of +/- 0.5 percent of span. This span handles low-pressure air, water or compatible process fluids where tight tolerance matters. Liquid-filled vibration resistance steadies the pointer on pulsating lines without a separate dampening feature. The white dial and glass lens maintain legibility under bright or dim lighting conditions.

1/2 in NPT Bottom Mount

A 1/2 in male NPT connection at the bottom allows direct threading into standard process taps. The aluminum case and black phenolic or thermoplastic internals resist corrosion in harsh atmospheres. Field-fillable design lets technicians add compatible fill fluid on site for vibration damping. The gauge needs no external power, freeing up electrical circuits and simplifying intrinsically safe installations.

Highlights

  • ±0.5% accuracy for reliable process readings
  • IP66 and NEMA 4X rating protects against dust and water ingress
  • 4 1/2 inch dial with white face and glass lens for clear visibility
  • 1/2 inch NPT male bottom connection fits standard piping
  • Aluminum case with black phenolic/thermoplastic finish resists corrosion

Specifications

BrandASHCROFT
TypeElectronic

Questions about this item

Will the 1/2 in NPT connection on the Ashcroft 451379 fit the existing port on my older pump?

The gauge has a 1/2 in male NPT process connection at the bottom, so it will thread directly into a matching female NPT port of the same size.

How can I verify the Ashcroft 451379 is reading within its stated +/- 0.5 percent accuracy after installation?

Apply a known reference pressure between 0 and 15 psi and compare the white dial reading against the reference; the needle should stay within half a percent of full scale.

Does the Ashcroft 451379 ship filled and ready to mount, or do I need to buy fill fluid separately?

The case is field-fillable and designed for liquid-filled vibration resistance, so you will need to purchase a compatible fill fluid and add it before use.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.