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Ashcroft 3-1/2 inch stainless steel vacuum gauge white dial 30in Hg

Ashcroft

Ashcroft 351009AW02LVAC Vacuum Gauge 30in Hg 3-1/2in

SKU CH-168J-3ZSW9

Measures vacuum from 30 in Hg to zero on a 3-1/2 in dial with ±1.0 % accuracy in a 304 stainless steel IP54-rated case

  • TypeElectronic
  • Accurate readings with ±1.0 % precision
  • Durable 304 stainless-steel case resists corrosion
  • IP54 vented and IP65 sealed protection
  • 30 in Hg vacuum range suits industrial use
  • 3 1/2 in dial with white face for clear visibility

Ashcroft 3-1/2in Vacuum Gauge

This industrial vacuum gauge measures from 30in Hg to 0 with a 3-1/2in nominal dial size. It features a 304 stainless steel case and a polycarbonate lens for durability. The 1/4in NPT male bottom connection suits standard process fittings. Accuracy is rated at +/- 1.0 percent of span.

IP54 and IP65 rated protection

The plug-vented configuration meets IP54 while the plug-closed version reaches IP65 and NEMA 4 ratings. This upgrade matters when the installation faces wash-down or dust ingress. The gauge is not field fillable and has no dry dampening or vibration resistance features. Choose the closed-plug option for harsher environments.

30in Hg vacuum range headroom

The primary range covers full vacuum to atmospheric pressure for evacuation and leak-down tasks. The white dial with black markings provides clear reading at the 3-1/2in size. It lacks dampening, so rapid pressure pulses may exceed the movement's response. Not suited for applications requiring liquid-filled damping or vibration isolation.

Highlights

  • Accurate readings with ±1.0 % precision
  • Durable 304 stainless-steel case resists corrosion
  • IP54 vented and IP65 sealed protection
  • 30 in Hg vacuum range suits industrial use
  • 3 1/2 in dial with white face for clear visibility

Specifications

BrandASHCROFT
TypeElectronic

Questions about this item

What size NPT thread does the 351009AW02LVAC use for its bottom process connection?

The gauge has a 1/4 in male NPT connection at the bottom for direct mounting into a matching port.

Which way should the IP54 vent plug be oriented during installation so the gauge keeps its rating?

Install the gauge with the vent plug facing downward and leave it open; closing the plug raises the rating to IP65 and NEMA 4.

Can the 304 stainless steel case be field-filled with damping fluid later if vibration becomes an issue?

No, the manufacturer specifies the case as not field-fillable, so liquid damping cannot be added after installation.

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