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Polished stainless steel pressure gauge with mini diaphragm seal, 2-1/2 inch dial, 0-600 psi range, glycerin filled, brass connection

Ashcroft

Ashcroft 251009AW 2-1/2" Pressure Gauge 0-600 psi Mini Diaphragm Seal

SKU CH-V9B8-XHRK7

Measures 0 to 600 psi with a 2-1/2 inch dial, glycerin-filled mini diaphragm seal, 316 stainless steel tube, and +/-1% accuracy

  • TypeElectronic
  • +/-1% accuracy for reliable readings
  • 0 to 600 psi range covers demanding applications
  • 2-1/2" dial with 10 psi graduations for clear visibility
  • 316 stainless steel tube and brass socket resist corrosion
  • Glycerin-filled mini diaphragm seal handles -40 to 150 degrees F

Pressure Gauge with Mini Diaphragm Seal

This Ashcroft 251009AW gauge measures 0 to 600 psi on a 2-1/2 inch dial. The mini diaphragm seal isolates the 316 stainless steel tube from process media. It suits technicians who need a corrosion-resistant instrument for hydraulic or pneumatic testing. Accuracy is rated at +/-1 percent of span.

Thermals Noise and Power Draw

The glycerin-filled seal dampens pointer vibration and lubricates internals across an operating range of -40 to 150 degrees Fahrenheit. No external power is required because the movement is purely mechanical. The polycarbonate lens and polished stainless steel case resist condensation and ambient corrosion during normal use.

Build Integration

A 1/4 inch NPT lower connection threads directly into existing ports without adapters. Brass socket material mates with common steel or stainless fittings. The compact seal assembly frees up space in crowded panels compared with full-size diaphragm units. Buyers who need a flush-mount or panel-mount case should verify compatibility separately.

Highlights

  • +/-1% accuracy for reliable readings
  • 0 to 600 psi range covers demanding applications
  • 2-1/2" dial with 10 psi graduations for clear visibility
  • 316 stainless steel tube and brass socket resist corrosion
  • Glycerin-filled mini diaphragm seal handles -40 to 150 degrees F

Specifications

BrandASHCROFT
TypeElectronic

Questions about this item

How do I install the 1/4" NPT lower connection without damaging the 316 stainless steel tube?

Thread the 1/4" NPT lower connection into the process port using a wrench on the brass socket flats only; do not turn the gauge by the polished stainless steel case or the polycarbonate lens, which can crack the 316 stainless tube.

What part of the Ashcroft 251009AW will need replacement first during normal service?

The glycerin fill inside the mini diaphragm seal can degrade or leak over time; when the dial motion becomes erratic or the fluid discolours, the seal assembly must be replaced.

At what point does the +/-1% accuracy spec stop being reliable under continuous 600 psi cycling?

The gauge maintains +/-1% accuracy up to its 150 °F upper operating limit; sustained exposure above 150 °F or below -40 °F causes the glycerin-filled diaphragm to expand or contract, shifting the zero point beyond the stated tolerance.

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