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The VALUE COLLECTION 115AL20100 is a liquid-filled analog pressure gauge designed for monitoring system pressure in plumbing, HVAC, and industrial service applications. The gauge features a 2-inch diameter dial with a 0 to 100 psi range and a 3-2-3 percent of scale accuracy rating. A glycerine and water fill dampens pointer vibration and protects the internal Bourdon tube mechanism, extending service life in pulsating or high-vibration environments. The stainless steel case resists corrosion, while brass wetted parts provide reliable performance in common fluid media. Connection is via a 1/4-inch NPT lower-mount fitting, making it straightforward to install in standard gauge ports. Licensed plumbers, HVAC technicians, and mechanical contractors are the typical installers.
This gauge suits residential and light commercial applications where a compact, accurate pressure reading is needed at a system tap point. Typical uses include monitoring water pressure, hydronic heating loop pressure, compressed air lines, and similar low-to-medium pressure systems. The lower-mount NPT configuration fits standard gauge tees, snubbers, and isolation valves commonly found in these installations. The liquid fill makes it well suited for service environments where pump cycling or pressure surges would otherwise cause excessive pointer flutter on a dry gauge.
Designed as an OEM-style replacement or new-installation gauge for residential and light commercial plumbing, HVAC hydronic, and compressed air systems equipped with a 1/4-inch NPT lower-mount gauge port.
Installation is typically performed by a licensed plumber or HVAC technician. Isolate and depressurize the system completely before removing or installing any pressure gauge. Apply thread sealant tape or paste rated for the service media to the NPT threads before installation — do not overtighten, as brass fittings can crack under excess torque. Verify that system operating pressure does not exceed the 100 psi maximum range of this gauge during normal or transient conditions.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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