Ashcroft 83189XLL Pressure Gauge 0-15 Psi 3.5 in Dial

Product Description

The ASHCROFT 83189XLL is an industrial-grade analog pressure gauge built for demanding service environments. It features a 3.5-inch dial calibrated from 0 to 15 psi, with a center back mount and a 1/4-inch MNPT threaded connection. The case and wetted parts are stainless steel, and the Bourdon tube is 316 stainless steel, making it suitable for applications where corrosion resistance and measurement accuracy are critical. Accuracy is rated at 1 percent of scale full span. The gauge is dry (no liquid fill) and is designed for straightforward installation and reliable long-term performance in industrial, commercial, and mechanical system applications.

This gauge is appropriate for use in low-pressure industrial process lines, HVAC systems, plumbing test setups, and mechanical equipment monitoring where pressures do not exceed 15 psi. The center back mount configuration allows for panel or pipe installation in tight spaces. Licensed tradespeople including HVAC technicians, plumbers, and industrial mechanics routinely use this gauge for pressure monitoring on water, air, and compatible fluid systems. The polycarbonate lens provides impact resistance and clear dial visibility in the field.

Key Features

• 3.5-inch analog dial with 0 to 15 psi range for low-pressure measurement
• 316 stainless steel Bourdon tube and stainless steel wetted parts for corrosion resistance
• 304/316 stainless steel case rated for harsh environments
• 1 percent of scale accuracy for reliable readings
• Center back mount with 1/4-inch MNPT connection for panel and pipe installations
• Polycarbonate lens rated IP54 and IP65/NEMA 4 for dust and moisture protection
• Dry gauge construction — no liquid filler

Compatibility

Designed as an OEM-style replacement or new-installation pressure gauge for industrial and commercial low-pressure systems requiring a 1/4-inch MNPT center back mount connection.

Installation Notes

Installation should be performed by a qualified HVAC technician, plumber, or industrial mechanic familiar with pressure instrumentation. Depressurize and isolate the system completely before removing or installing any pressure gauge. Apply appropriate thread sealant to the MNPT connection per IPC or applicable local code. Do not exceed the rated maximum pressure of 15 psi on this gauge.