Watts 0121662 Gauge

For high-performance monitoring in commercial and residential hydronic systems, the Watts 0121662 (Series LFDPTG-3) offers professional-grade precision. As a direct equivalent to the LFDPTG3-3-0-200, this combination pressure and temperature gauge is engineered with a lead-free brass 1/2-inch NPT center back mount connection to ensure compliance with modern potable water standards. Designed for durability in demanding HVACR environments, it features a rugged black enamel steel case and a 3-inch dial, providing clear visibility of its dual-scale 0-200 PSI and 60-320°F ranges. The internal Bourdon tube and bimetal spiral spring components deliver ASME Type B accuracy, essential for balancing boiler pressure temperature and maintaining optimal thermal efficiency. This HVAC tridicator is the standard choice for contractors requiring a reliable, lead-free HVAC gauge that simplifies installation with its back entry configuration and eliminates the need for redundant sensors.

• Dual-Scale Versatility: Direct measurement of both system pressure (0-200 PSI/kPa) and temperature (60-320°F) through a single 1/2-inch NPT point.
• Code Compliance: Lead-free construction meets stringent regulations for institutional and residential potable water applications.
• Rugged Build: Features a corrosion-resistant steel case and a high-impact Kostil polymer window to withstand mechanical vibration and jobsite debris.
• Service Accuracy: ASME Type B rated sensing elements ensure precise readings for critical diagnostic and balancing tasks.

Is the Watts 0121662 compatible with older DPTG3-3-0-200 models?
Yes, the 0121662 is the identical lead-free replacement for the standard LFDPTG3-3-0-200, maintaining the same 3-inch dial face and 1/2-inch back mount fitting for seamless swaps.

Can this gauge be used in steam applications?
This model is rated for a maximum temperature of 320°F. While suitable for many hydronic heating systems, ensure your operating steam pressure and temperature do not exceed these specified technical limits.

Does the gauge require a separate thermowell?
The DPTG series is designed as a direct-insert instrument. For high-pressure environments, verify your localized piping requirements for secondary isolation valves or siphons.

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.