Ashcroft 662876139477 Pressure Gauge 600 Psi 3.5 in Npt

Product Description

The ASHCROFT 662876139477 is an analog pressure gauge designed for monitoring system pressure in HVAC, plumbing, and industrial piping applications. It features a 3.5-inch dial for clear, at-a-glance readings and a pressure range of 0 to 600 psi. The steel case provides durability in typical mechanical room and equipment room environments. Mounting is via a 1/4-inch NPT center back connection, which positions the gauge flush against a panel or pipe assembly. Licensed tradespeople and service techs install this gauge as part of pressure monitoring setups on boilers, compressors, pumps, and pressurized fluid lines.

This gauge is suited for residential and light commercial applications where a reliable, easy-to-read analog pressure indication is required. The center back mount configuration is commonly used in panel-mounted or manifold installations where the gauge face must be visible from the front of the assembly. The 1/4-inch NPT thread is a standard trade connection size compatible with a wide range of pipe fittings and manifold ports used in HVAC, hydronic heating, and plumbing systems.

Key Features

• 0 to 600 psi pressure range suitable for a broad range of system pressures
• 3.5-inch analog dial for clear, easy-to-read pressure indication
• 1/4-inch NPT center back mount for standard panel or manifold installation
• Steel case construction for durability in mechanical environments
• Analog dial type requires no power source or wiring

Compatibility

Designed as an OEM-style replacement or service gauge for systems requiring a 1/4-inch NPT center back mount analog pressure gauge rated to 600 psi.

Installation Notes

Installation is typically performed by a licensed plumber, HVAC technician, or pipefitter. Depressurize and isolate the system before removing any existing gauge or installing this unit. Apply thread sealant tape or compound to the NPT threads per standard trade practice and applicable plumbing or mechanical codes. Do not overtighten the threaded connection; use a wrench on the hex fitting body, not on the gauge dial or case.