Watts Brass Tubular 3/4 LL100XL-DP-150/210 Tp Relief Valve

Product Description

The WATTS BRASS TUBULAR 3/4 LL100XL-DP-150/210 is a temperature and pressure relief valve rated at 105,000 BTU/h, 150 psi, and 210 degrees F. It provides fully automatic temperature and pressure relief protection for hot water storage tanks and heaters with walls up to 2 inches thick. The valve ships with a long-shank extension thermostat that allows installation either directly into the tank tapping or in the hot water outlet line. The temperature sensing element must be immersed in the water within the top 6 inches of the tank. Licensed plumbers install this valve as a code-required safety device on residential and light commercial water heater systems.

This valve is designed for hot water storage tanks and water heaters with tank walls up to 2 inches thick and input ratings up to 105,000 BTU/h. The 3/4-inch male inlet and 3/4-inch female outlet sizing suits standard residential and light commercial water heater configurations. The included extension thermostat provides installation flexibility for either direct tank tapping or hot water outlet line service. The low-lead wetted surface construction contains less than 0.25 percent lead by weight, supporting compliance with lead-free plumbing requirements in potable water systems.

Key Features

• Rated for water heaters up to 105,000 BTU/h and tank walls up to 2 inches thick
• Temperature relief set point: 210 degrees F; pressure relief set point: 150 psi
• Includes long-shank extension thermostat for outlet line or direct tank tapping installation
• Temperature sensing element requires immersion within the top 6 inches of the tank
• Low-lead wetted surfaces with less than 0.25 percent lead by weight for potable water use
• ASME rated and CSA listed

Compatibility

Designed as an OEM-style replacement or new-installation T and P relief valve for residential and light commercial hot water storage tanks and water heaters with 3/4-inch tapping, walls up to 2 inches thick, and input ratings up to 105,000 BTU/h.

Installation Notes

Installation must be performed by a licensed plumber in accordance with local plumbing codes and the applicable requirements of the International Plumbing Code. Shut off the cold water supply and relieve system pressure before removing or installing a relief valve. The discharge line must be routed to a safe drain location and must not be capped, plugged, or reduced in diameter. Verify that the sensing element is fully immersed within the top 6 inches of the tank water volume after installation.