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Ashcroft industrial compound gauge, 2 1/2 inch stainless steel case, bottom connection

Ashcroft

Ashcroft 251009SWL02LV/30# Industrial Compound Gauge 30 to 0 to 30 psi 2 1/2 in

SKU CH-GK69-RMXNQ

Measures vacuum and pressure from 30 to 0 to 30 psi with a 2 1/2 in dial and +/- 1.5 percent accuracy

  • TypeElectronic
  • ±1.5 % accuracy ensures reliable pressure readings
  • 304 stainless-steel case resists corrosion in harsh environments
  • IP54 vented and IP65 sealed ratings protect against dust and water ingress
  • 30 to 0 to 30 psi compound range covers both vacuum and positive pressure
  • ¼ in NPT bottom connection simplifies installation in existing piping

Industrial Compound Gauge

The Ashcroft 251009SWL02LV/30# is an industrial compound gauge designed for measuring pressure and vacuum in a single instrument. It suits technicians and engineers who need to monitor both positive and negative pressure ranges in hydraulic or pneumatic systems.

Build Quality and Mounting

The gauge features a 304 stainless steel case with a polycarbonate lens for durability in harsh environments. A 1/4 inch NPT male bottom connection allows direct mounting to process lines, while the field-fillable design and liquid-filled vibration resistance support stable readings in high-vibration settings.

Practical Limits

Accuracy is rated at +/- 1.5 percent across the 30 to 0 to 30 psi range. The unit carries an IP54 rating with the plug vented and IP65 or NEMA 4 with the plug closed, limiting ingress protection based on vent configuration. Buyers needing higher accuracy or different pressure spans should consider other models.

Highlights

  • ±1.5 % accuracy ensures reliable pressure readings
  • 304 stainless-steel case resists corrosion in harsh environments
  • IP54 vented and IP65 sealed ratings protect against dust and water ingress
  • 30 to 0 to 30 psi compound range covers both vacuum and positive pressure
  • ¼ in NPT bottom connection simplifies installation in existing piping

Specifications

BrandASHCROFT
TypeElectronic

Questions about this item

What pressure range does the 251009 compound gauge cover?

The gauge reads from 30 inches of mercury vacuum through zero up to 30 psi, providing both vacuum and pressure measurement on a single dial.

Which thread size fits the 1/4 in NPT male process connection on the 251009?

The connection uses a 1/4 inch NPT male thread, so it mates with any standard 1/4 inch NPT female port or adapter.

How do you fill the 251009 gauge in the field, and what step is often missed?

Remove the fill plug, pour in the specified damping fluid to the recommended level, then reinstall and tighten the plug; the step most often missed is re-seating the vent plug correctly so the IP65 rating is maintained.

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