Ashcroft
Ashcroft 251009 Pressure Gauge 0 to 5000 psi 1/4 in MNPT 304 Stainless Steel IP54 IP65 NEMA 4
Measures pressure up to 5000 psi with ±1.0% accuracy in a 304 stainless steel case rated IP54, IP65 and NEMA 4
- Color/FinishSilver
- TypeMicrometers
- +/- 1.0 % accuracy ensures reliable readings
- 304 stainless steel case resists corrosion
- IP54 vented and IP65 sealed ratings protect internals
- NEMA 4 enclosure rating suits harsh environments
- 0 to 5000 psi range covers high-pressure applications
Industrial Pressure Gauge
The Ashcroft 251009 is a 2 1/2 inch dial gauge built for industrial pressure monitoring up to 5000 psi. It suits plant engineers and maintenance teams who need a durable, stainless-steel instrument for hydraulic or pneumatic systems. Buyers needing digital output or integrated transducers should look elsewhere.
Thermals and Environmental Protection
The 304 stainless-steel case carries IP54 rating with the vent plug open and IP65 plus NEMA 4 when the plug is closed. The polycarbonate lens and dry PLUS! Performance dampening handle vibration without liquid fill. No operating temperature range or power consumption figures are provided by the supplier.
Connection and Accuracy Benefits
A 1/4 inch male NPT lower-back connection allows direct panel or pipe mounting in tight spaces. The gauge delivers +/- 1.0 percent full-scale accuracy across the 0 to 5000 psi range. The field-fillable design is not supported, so the dry dampening stays as shipped.
Highlights
- +/- 1.0 % accuracy ensures reliable readings
- 304 stainless steel case resists corrosion
- IP54 vented and IP65 sealed ratings protect internals
- NEMA 4 enclosure rating suits harsh environments
- 0 to 5000 psi range covers high-pressure applications
Specifications
| Brand | ASHCROFT |
|---|---|
| Color/Finish | Silver |
| Type | Micrometers |
Questions about this item
How do I install the 251009 gauge with its 1/4 in MNPT lower back connection, and what step is often missed?
Thread the 1/4 in MNPT fitting into the matching female port using PTFE tape or thread sealant; the step often missed is leaving the vent plug closed for IP65 or NEMA 4 sealing, or opening it only when IP54 venting is required.
What maintenance or replacement will the 251009 gauge need over time?
The polycarbonate lens and 304 stainless case are not field fillable; if the lens clouds, the seal fails, or the +/- 1.0 percent accuracy drifts beyond tolerance, the entire gauge must be replaced.
At what pressure limit does the 251009 gauge reach its maximum reading during sustained use?
The primary pressure range ends at 5000 psi; sustained operation at or near this upper limit provides no additional headroom and may accelerate calibration drift.
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