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Ashcroft 452074 digital vacuum gauge, thermoplastic case, 4 1/2 in dial, IP65, bottom NPT connection

Ashcroft

Ashcroft 452074 Digital Test Vacuum Gauge -30 to 0 psi

SKU CH-TE55-10ZE9

Digital test vacuum gauge measures -30 to 0 psi with ±0.25 % accuracy, IP65-rated thermoplastic case, 316 stainless steel diaphragm sensor, NPT bottom connection.

  • TypeElectronic
  • Accurate vacuum readings within ±0.25 % of span
  • Rugged IP65-rated thermoplastic case resists dust and water jets
  • 316 stainless steel sensor and socket withstand corrosive media
  • Ten selectable pressure units cover bar, kPa, psi and more
  • Powered by two C batteries for portable field use

Product identity

The Ashcroft 452074 is a digital test vacuum gauge designed for technicians who need to measure negative pressure down to -30 psi. It suits calibration labs, plant maintenance teams and field engineers verifying vacuum systems.

Build and connections

The gauge case uses thermoplastic with a polyester lens rated IP65 for dust and water jets. A 316 stainless steel diaphragm sensor and male NPT bottom connection resist corrosion in harsh process media. Two C batteries power the unit for portable operation.

Deciding specification

Accuracy is specified at +/- 0.25 percent of span across the full -30 to 0 psi range. The display reads out in bar, ft wc, in Hg, in wc, kg/sq cm, kPa, mBar, mm Hg, Mpa and psi. Buyers who need a hazardous-location rating or a different pressure span should look elsewhere.

Highlights

  • Accurate vacuum readings within ±0.25 % of span
  • Rugged IP65-rated thermoplastic case resists dust and water jets
  • 316 stainless steel sensor and socket withstand corrosive media
  • Ten selectable pressure units cover bar, kPa, psi and more
  • Powered by two C batteries for portable field use

Specifications

BrandASHCROFT
TypeElectronic

Questions about this item

What pressure range does the NPT male connection support on this gauge?

The gauge measures vacuum from -30 to 0 psi through its bottom-mounted NPT male process connection.

What size opening and thread type are required to mount the 316 stainless steel socket?

A standard NPT male thread fits directly into a matching female port; no special cut-out or bracket is specified.

How are the two C batteries installed, and what common mistake should be avoided?

Open the thermoplastic case, insert the two C cells observing the marked polarity, then reseal the cover to maintain the IP65 rating.

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