Watts LFUSG-B M3 Under Sink Guardian Thermostatic Mixing Valve, 3/8 in.

The Watts LFUSG-B M3 Under Sink Guardian (204152) is a 3/8 in. lead free thermostatic mixing valve that limits hot water temperature at sinks and lavatories to reduce scalding risk. It fits residential and commercial kitchen and bath fixtures used for washing or bathing.

A double throttling design meters both the hot and cold supplies into the mixed outlet, giving accurate temperature control with little pressure drop across a flow range of 0.25 to 2.5 GPM. Outlet temperature can be set in the field from 80 to 120 F (27 to 49 C), with 110 F (43 C) the recommended maximum, and a tamper resistant locking cap holds the setting.

The lead free brass body has 3/8 in. male compression fittings, a copper thermostat, built-in check valves that stop hot and cold crossflow, and an integral strainer with 40 mesh stainless screens. It is rated for working pressure up to 150 psi (1034 kPa). The valve carries ASSE 1070 and CSA certifications and meets the reduced Q statistic of 0.5 ppb lead under Section 9.5.1.1 of NSF/ANSI/CAN 61.

Highlights

• Adjustable outlet temperature from 80 to 120 F

• Flow range of 0.25 to 2.5 GPM with low pressure drop

• Built-in check valves stop hot and cold crossflow

• Integral 40 mesh stainless steel strainer screens

• Tamper resistant locking cap

• ASSE 1070 and CSA certified

Specifications

Available options

• Pack size: 1, 2, 5, 10