Ashcroft 94342XLL Pressure Gauge 0-400 Psi 3.5in Dial

Product Description

The ASHCROFT 94342XLL is an industrial-grade analog pressure gauge designed for accurate pressure monitoring in demanding service environments. The gauge features a 3.5-inch dial with a 0 to 400 psi range and delivers 1 percent of full-scale accuracy. Its 316 stainless steel Bourdon tube and stainless steel wetted parts make it suitable for corrosive media and harsh process conditions. The 304/316 stainless steel case provides durability where moisture and contaminants are present. A polycarbonate lens and lower-mount MNPT connection complete the assembly. Licensed HVAC technicians, plumbers, and industrial service technicians install this gauge as part of pressure monitoring setups on piping, compressors, and process equipment.

This gauge is suited for residential and commercial applications where a reliable, dry-fill pressure indicator is needed on liquid or gas systems. The lower-mount configuration allows direct in-line installation on piping runs without additional adapters in most setups. Its stainless steel wetted parts make it appropriate for mildly corrosive fluids as well as standard air, water, and gas service. The IP54 and IP65/NEMA 4 ratings allow use in wet or washdown environments. CRN, PED, and RoHS compliance broaden its suitability across North American and European installations.

Key Features

• 0 to 400 psi pressure range with 1 percent of full-scale accuracy
• 3.5-inch analog dial for clear reading at a distance
• 316 stainless steel Bourdon tube and stainless steel wetted parts resist corrosion
• 304/316 stainless steel case rated IP54 and IP65/NEMA 4 for wet and washdown environments
• Lower-mount 1/4-inch MNPT connection for direct in-line piping installation
• Dry (no-fill) design eliminates liquid fill compatibility concerns
• CRN, PED, and RoHS certified for broad installation compliance

Compatibility

Designed as an OEM-style or replacement industrial pressure gauge for piping, compressor, and process equipment installations requiring a 1/4-inch MNPT lower-mount connection and a 0 to 400 psi dry-fill analog gauge.

Installation Notes

A licensed plumber, pipefitter, or qualified HVAC technician should install this gauge in accordance with applicable local codes and the system manufacturer's guidelines. Isolate and depressurize the system completely before removing an existing gauge or installing this unit. Apply thread sealant or PTFE tape to the MNPT threads as appropriate for the service fluid, taking care not to overtape threads. Do not exceed the rated 400 psi maximum pressure, and verify the gauge range is appropriate for the system's normal and transient operating pressures before installation.