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Ashcroft 2 1/2 in stainless steel compound gauge 30 to 0 to 15 psi bottom connection

Ashcroft

Ashcroft 251009 Industrial Compound Gauge 30 to 0 to 15 psi 2 1/2 in

SKU CH-5X2X-7B3WP

Industrial compound gauge measuring vacuum to 15 psi with 2 1/2 in dial, ±1.0 % accuracy, 304 stainless-steel case and IP54/IP65 protection

  • TypeElectronic
  • Compound pressure range 30 to 0 to 15 psi covers vacuum and positive pressure
  • ±1.0 % accuracy class for reliable industrial readings
  • 304 stainless-steel case resists corrosion in harsh environments
  • IP54 vented and IP65 sealed ratings protect against dust and water ingress
  • 2 1/2 in dial with polycarbonate lens for clear, durable visibility

Industrial Compound Gauge 2 1/2 in

The Ashcroft 251009 compound gauge measures vacuum and pressure in a single instrument with a nominal dial size of 2 1/2 in. It covers a primary range of 30 to 0 to 15 psi with an accuracy of +/- 1.0 percent. The 304 stainless steel case and polycarbonate lens suit industrial environments where durability and readability are required. A 1/4 in male NPT bottom connection allows direct mounting on process piping.

IP54 and IP65 ratings thermals noise

The gauge operates without active cooling or powered components so thermal output and acoustic noise are negligible in normal use. With the plug vented the enclosure meets IP54; with the plug closed it meets IP65 and NEMA 4 for dust and water ingress protection. No dry dampening feature or vibration resistance is specified so the movement relies on the inherent stability of the bourdon tube design. Power draw is zero because the device is purely mechanical.

Field fillable no accessories

The unit is not field fillable so the case remains sealed after installation and no liquid fill kit is included or required. The polycarbonate lens and stainless case arrive ready for service without additional mounting hardware or calibration software. Users needing a filled gauge or panel mounting adapters must source those separately. The absence of bundled accessories keeps the package simple for direct process connection.

Highlights

  • Compound pressure range 30 to 0 to 15 psi covers vacuum and positive pressure
  • ±1.0 % accuracy class for reliable industrial readings
  • 304 stainless-steel case resists corrosion in harsh environments
  • IP54 vented and IP65 sealed ratings protect against dust and water ingress
  • 2 1/2 in dial with polycarbonate lens for clear, durable visibility

Specifications

BrandASHCROFT
TypeElectronic

Questions about this item

How do I install the 1/4 in NPT male connection on the Ashcroft 251009 gauge, and what step is often missed?

Apply thread sealant to the 1/4 in NPT male threads, thread into the port, and tighten with a wrench on the 304 stainless steel case flats — not the polycarbonate lens — to avoid cracking the lens.

What maintenance will the Ashcroft 251009 compound gauge need over time?

The gauge is not field fillable and has no dry dampening feature, so no fluid top-ups are required; periodically verify the +/- 1.0 percent accuracy against a known reference and inspect the polycarbonate lens for cracks or haze.

What is the first limit reached on the Ashcroft 251009 during sustained pressure cycling between 30 inHg vacuum and 15 psi?

The +/- 1.0 percent accuracy spec is the first limit; with no vibration resistance or dampening, repeated cycling can cause pointer drift beyond that tolerance before the 304 stainless case or IP54/IP65 seals degrade.

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