Ashcroft 83251 Pressure Gauge 0-1000 Psi 3.5 in Dial Npt

Product Description

The ASHCROFT 83251 is an analog industrial pressure gauge designed for monitoring system pressure across a wide range of commercial and industrial applications. The gauge features a 3.5-inch dial with a 0 to 1000 psi range, a stainless steel case, and a 316 stainless steel Bourdon tube for corrosion resistance in demanding service environments. Accuracy is rated at 1 percent of scale. The polycarbonate lens provides impact and chemical resistance. The 1/4-inch NPT center back mount connection allows for direct panel or pipe installation. This gauge ships dry — it is not liquid filled. Licensed HVAC technicians, plumbers, and industrial maintenance professionals are the typical installers.

The ASHCROFT 83251 is suited for industrial process piping, HVAC systems, compressed air lines, hydraulic circuits, and general-purpose pressure monitoring where a rugged, corrosion-resistant gauge is required. The center back mount configuration is well-matched to panel-mount or manifold installations where a flush-face presentation is needed. The 3.5-inch dial face provides clear readability at working distances typical of mechanical rooms and equipment skids.

Key Features

• 0 to 1000 psi analog pressure range with 1 percent of scale accuracy
• 3.5-inch dial diameter for clear readability at distance
• 316 stainless steel Bourdon tube resists corrosion in wet or chemical-exposed service
• 304/316 stainless steel case for durable, long-term service
• Polycarbonate lens rated for impact and environmental exposure
• 1/4-inch NPT center back mount connection for panel or pipe installation
• Not liquid filled — suitable for dry environments and vibration-low applications

Compatibility

Designed as an OEM-style replacement or new-installation industrial pressure gauge for systems utilizing 1/4-inch NPT center back mount connections in compressed air, hydraulic, HVAC, and general industrial process applications.

Installation Notes

Installation is typically performed by licensed plumbers, pipefitters, or qualified mechanical technicians. Depressurize and isolate the system completely before removing an existing gauge or installing this unit. Apply thread sealant appropriate for the service medium to the NPT threads; do not overtighten, as this can crack the socket or distort the Bourdon tube connection. Verify pressure range compatibility with the system before placing the gauge in service.