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Silver 304 stainless steel compound gauge 2-1/2 inch dial 30 Hg to 15 psi bottom connection

Ashcroft

Ashcroft 251009 Compound Gauge 30 Hg 15 psi 2-1/2In 304 Stainless Steel

SKU CH-ASJ7-D3RK2

Measures vacuum to 30 in Hg and pressure to 15 psi in a 304 stainless steel case with ±1.00% accuracy

  • TypeElectronic
  • Measures vacuum to 30 in Hg and pressure to 15 psi for combined range
  • 304 stainless steel case and wetted parts resist corrosion in harsh environments
  • ±1.00 % accuracy supports reliable calibration checks
  • 1/4 in MNPT bottom connection fits standard panel mounts
  • Dry gauge design eliminates liquid-fill maintenance and leakage risk

Compound gauge for vacuum and pressure

The Ashcroft 251009 measures from 30 inches of mercury vacuum up to 15 psi positive pressure. Its 304 stainless steel case and wetted parts suit general-purpose industrial and automotive testing where both vacuum and low pressure appear in the same circuit. The 2-1/2 inch dial provides clear readings for technicians who need a single instrument covering both ranges.

Dual-scale range with one-percent accuracy

The gauge spans -30 inHg through 0 to 15 psi with a smallest graduation of 1 and an accuracy of +/- 1.00 percent of span. It handles combined vacuum and low-pressure tasks comfortably but runs out of headroom above 15 psi or below full vacuum. The 1/4 inch MNPT bottom connection fits standard ports without adapters.

Dry stainless construction for panel

The case is 304 stainless steel with a silver finish and is not liquid-filled, so there is no fill fluid to leak or freeze. It is not panel-mountable, so installation relies on the bottom connection or a suitable bracket. No calibration certificate is included, and the unit carries no restricted-state limitations.

Highlights

  • Measures vacuum to 30 in Hg and pressure to 15 psi for combined range
  • 304 stainless steel case and wetted parts resist corrosion in harsh environments
  • ±1.00 % accuracy supports reliable calibration checks
  • 1/4 in MNPT bottom connection fits standard panel mounts
  • Dry gauge design eliminates liquid-fill maintenance and leakage risk

Specifications

BrandASHCROFT
TypeElectronic

Questions about this item

Will the 1/4 in MNPT bottom connection thread directly into the 1/4 NPT ports on my existing manifold?

Yes, the gauge has a 1/4 in MNPT bottom connection that mates with standard 1/4 NPT female ports on most manifolds and test rigs.

How do I confirm the +/- 1.00 percent accuracy after installation?

Apply a known reference pressure within the 30 Hg to 15 psi span and verify the needle reads within 1.00 percent of the full-scale value at each test point.

Does the 304 stainless steel case ship with the seal and mounting hardware, or must I order them separately?

The unit includes the general-purpose seal; panel-mount hardware is not supplied because the gauge is not panel mountable.

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