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Watts Valves Relief Valve
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Watts 1 1/2 IN LF340-3 Lead Free Automatic Reseating Temperature and Pressure Relief Valve, 150 psi, 210 degree F, 3 IN SS Thermostat, Discharge Line Flood Sensor Included

SKU: F121602

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Product Details

Watts F121602

This lead free automatic reseating temperature and pressure relief valve has a 1 1/2 inch NPTF female inlet, 1 1/2 inch NPTF female outlet, 3 inch stainless steel thermostat, pressure relief setpoint of 150 psi, and temperature relief setpoint of 210 degrees F. This valve can be installed directly in tank tappings for commercial applications to provide protection for hot water supply tanks and hot water heaters. It features a lead free copper silicon alloy body, tamper resistant bonnet screws, and test lever. Includes a nonrestrictive discharge drain line flood sensor with SentryPlus Alert(R) technology to detect excessive water discharges from the relief valve. Sensor activation requires purchase of an activation kit which can be connected to existing building management systems or the Watts Cellular Gateway.


  • UPC 098268559453
  • Online Product ID 14318999
  • Made In USA

Additional information

  • Features a flood sensor with SentryPlus Alert technology to detect excessive water discharges from the relief valve
  • Requires purchase of activation kit to activate sensor
  • Lead free copper silicon alloy body
  • Tamper resistant bonnet screws
  • 3 Inch thermostat length
  • Non-mechanical seat to disc alignment
  • Set pressure 150 psi

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