Ashcroft 82129 Pressure Gauge 2.5in Dial 0-100 Psi Npt

Product Description

The ASHCROFT 82129 is a liquid-filled industrial pressure gauge designed for accurate pressure measurement in demanding trade and industrial applications. It features a 2.5-inch analog dial with a range of 0 to 100 psi and a compound vacuum range down to -30 inches Hg, allowing it to read both pressure and vacuum. The stainless steel case with 304 and 316 grade materials and a 316 stainless steel Bourdon tube make it well-suited for corrosive or wet environments. Accuracy is rated at 1 percent of scale. The liquid fill dampens pointer vibration and reduces wear on internal components, extending service life in pulsating systems. Licensed HVAC technicians, plumbers, and industrial service pros regularly use this gauge for system commissioning, diagnostics, and pressure testing.

The 82129 is appropriate for residential and commercial installations where reliable pressure indication is needed. Its center back mount configuration suits panel-mounted or pipe-mounted installations where the gauge face must be visible straight-on. The 1/4-inch NPT connection is a common thread size across water, gas, refrigerant, and compressed-air systems, making this gauge a versatile fit in HVAC, plumbing, and general industrial piping setups. The polycarbonate lens resists impact and condensation in field conditions.

Key Features

• 2.5-inch analog dial with 0 to 100 psi pressure range and -30 inches Hg vacuum range
• Liquid-filled case dampens vibration and protects internal Bourdon tube from pulsation damage
• 316 stainless steel Bourdon tube resists corrosion in wet or chemically aggressive media
• Stainless steel case in 304 and 316 grade construction for durability in harsh environments
• 1 percent of scale accuracy for reliable diagnostic and commissioning readings
• Polycarbonate lens provides impact resistance and clear readability
• Meets CRN, IP54, IP65/NEMA 4, PED, and RoHS standards

Compatibility

Designed as an OEM-style and field replacement industrial pressure gauge for systems using a 1/4-inch NPT center back mount connection, including HVAC, plumbing, compressed air, and general industrial piping applications. This gauge is part of the ASHCROFT 1009 Series.

Installation Notes

Installation should be performed by a licensed technician or qualified trade professional. Shut off and depressurize the system fully before removing an existing gauge or installing this unit. Apply appropriate thread sealant to the NPT connection per local code requirements, and do not overtighten, as this can damage the gauge socket. For gas systems, verify compatibility with the gas type and pressure range before placing in service.