Ashcroft 251009S02BXLL4K Pressure Gauge 0-4000 Psi

Product Description

The ASHCROFT 251009S02BXLL4K is an industrial pressure gauge designed for accurate pressure measurement in demanding service environments. It features a 2.5-inch analog dial with a range of 0 to 4000 psi and delivers 1% of scale accuracy. The Bourdon tube is constructed from 316 stainless steel, and all wetted parts are stainless steel, making this gauge suitable for corrosive media and high-pressure applications. The case is 304/316 stainless steel with a polycarbonate lens. This is a dry gauge with no liquid fill. Licensed HVAC technicians, plumbers, pipefitters, and industrial mechanics typically install and service this type of instrument.

This gauge is suited for industrial, commercial, and mechanical systems where high-pressure monitoring up to 4000 psi is required. The center back mount configuration with a 0.25-inch MNPT connection allows it to be installed directly into panel-mounted or pipe-mounted applications. Its stainless steel construction makes it a practical choice for hydraulic systems, compressed gas lines, process piping, and water treatment installations where corrosion resistance and pressure integrity are critical.

Key Features

• Pressure range of 0 to 4000 psi with 1% of scale accuracy
• 2.5-inch analog dial for clear on-site readability
• 316 stainless steel Bourdon tube and stainless steel wetted parts for corrosion resistance
• 304/316 stainless steel case with polycarbonate lens
• Center back mount with 0.25-inch MNPT thread connection
• Dry gauge, no liquid fill
• Certified to CRN, IP54, IP65/NEMA 4, PED, and RoHS standards

Compatibility

Designed as an OEM-style or replacement industrial pressure gauge for systems requiring a center back mount, 0.25-inch MNPT connection, and a 0 to 4000 psi measurement range with stainless steel wetted parts.

Installation Notes

Installation should be performed by a qualified pipefitter, plumber, or instrumentation technician following applicable codes including ASME B31.3 for process piping. De-pressurize and isolate the system completely before removing an existing gauge or installing this unit. Apply appropriate thread sealant to the MNPT connection and do not overtighten, as excessive torque can damage the socket or Bourdon tube. Verify the system pressure does not exceed the gauge maximum rating of 4000 psi during operation.