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Technical Data | Related Products

Watts Series LF210-5 Lead Free* Automatic Gas Shutoff Valves are used in gas water heater applications to protect against overheating water in the domestic hot water supply heating system.

It is an immersion-type valve that automatically shuts off the gas supply to the heater if the temperature reaches 210°F. It is a self-contained device that consists of Buna-N disc-to-metal seating, manual reset button to reopen the valve after an automatic shutoff, trip latch assembly and stainless steel spring seats to close the valve at a controlled temperature, and thermostat with extension tube which operates trip latch in response to water temperature.

Design certified by CSA. Models LFL210-5 M2 and LFLL210-5 M2 feature extended shanks for use with water heaters containing extra thick insulation, up to 2 1/2 in.

Models

• LF210-5 M2 Suitable for water heaters with up to 3⁄4" of insulation
• LFL210-5 M2 Suitable for water heaters with up to 2" of insulation
• LFLL210-5 M2 Suitable for water heaters with up to 21⁄2" of insulation
• LFLLL210-5 M2 Suitable for water heaters with up to 3" of insulation

Gas Capacity

C.S.A. listed ratings of this valve are:

• For use with natural gas 150,000 BTU/hr.
• For use with liquified petroleum gas 243,000 BTU/hr.

Additional Information