Watts 0121602 Valve

As a veteran HVACR technician, you know that safeguarding high-capacity commercial water systems requires a reliable 2-in-1 solution. The Watts 0121602 (Series LF340-3) is a heavy-duty lead-free temperature and pressure relief valve designed specifically for large-scale domestic hot water heaters and storage tanks. This valve features a robust 1.5 inch NPT female inlet and outlet, ensuring it can handle the significant discharge capacities required in industrial environments. Precision-engineered with a lead-free copper silicon alloy body and a 3-inch stainless steel thermostat, it provides a critical thermal and pressure safety margin, preset to relieve at 150 psi and 210°F. The automatic reseating design ensures the system returns to normal operation independently after an event, while the non-mechanical seat-to-disc alignment prevents common failures found in inferior safety valves. This model also includes an integrated flood sensor with SentryPlus Alert technology, allowing for remote monitoring of discharge events when paired with a compatible connection kit.

• High RELIEVING Capacity: Specifically rated for large commercial boilers and water heaters, meeting ANSI Z21.22 and ASME Section IV standards.
• Lead-Free Construction: Fabricated from lead-free copper silicon alloy to ensure compliance with strict potable water safety regulations.
• Advanced Monitoring: Includes a factory-installed flood sensor to detect excessive water discharge, protecting facilities from potential flood damage.
• Field Reliability: Features tamper-resistant bonnet screws and a built-in test lever to facilitate routine maintenance inspections.
• Durable Internal Components: Equipped with a stainless steel spring and thermostat tube to resist corrosion in harsh water conditions.

Is the Watts LF340-3 compatible with my building’s automation system?
Yes, the included flood sensor can be integrated with BMS (Building Management Systems) via RS-485 Modbus or Wi-Fi when used with the appropriate connector kit, allowing for real-time maintenance alerts.

What is the difference between the 340 and the LF340 models?
The "LF" designation indicates Lead Free construction, utilizing a copper silicon alloy that meets the wetted surface requirements for potable water, whereas older bronze models may not.

Where should the 1.5 inch T&P valve be installed?
It should be installed directly into the tank tapping or in the hot water outlet line as close to the tank as possible, ensuring the 3-inch thermostat is fully submerged in the top 6 inches of water.

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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.