Weil McLain 380-000-000 Gauge

As a technician, you know that accurate system monitoring is non-negotiable for hydronic health. The Weil McLain 380-000-000 is an OEM-spec temperature and pressure gauge designed specifically for boiler applications where precision and reliability are paramount. This combination gauge features a dual-scale analog interface, providing real-time readouts for scales ranging from 0-75 PSI and 60-360°F. Built with a short shank for direct tapping into system manifolds or panels, it utilizes a standard 1/4" NPT back mount connection. To ensure field adaptability, this factory kit includes a 1/4" to 1/2" NPT reducing bushing, allowing for seamless integration into various Weil McLain Evergreen and commercial boiler models. When you are troubleshooting erratic pressure spikes or confirming high-limit cutouts, this 3-1/8 inch T&P gauge offers the high-contrast visibility required in dark mechanical rooms. This is the industrial-grade standard for maintaining hydronic heating system balance and safety.

• Dual-Function Monitoring: Streamlines your setup by measuring both system pressure and temperature through a single tapping.
• OEM Precision: Guaranteed compatibility with Weil McLain boiler parts, ensuring the sensor depth and thread pitch match factory specifications.
• Enhanced Versatility: The included 1/4 x 1/2 reducing bushing makes this unit adaptable to multiple pipe diameters and manifold types.
• High-Visibility Dial: The 3-1/8" diameter face features clear, distinct markings for professional-grade diagnostic accuracy.
• Robust Construction: Engineered to withstand the thermal cycling and vibration typical of high-demand hydronic loops.

Is this a direct replacement for my older Weil McLain boiler?
Yes, this 380-000-000 part is the current OEM replacement for many commercial and residential models, including the Evergreen series. Always verify your specific model's tapping size before installation.

What is the purpose of the 1/4" to 1/2" bushing?
It allows the gauge to be installed in a 1/2" NPT port, which is common on larger manifolds, while the gauge itself maintains a compact 1/4" NPT stem.

Can this gauge be used in potable water systems?
This gauge is specifically engineered for closed-loop hydronic heating systems. Using it in open potable water systems may lead to premature scale buildup or internal corrosion.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.