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Product details

The combined 2-in-1 temperature and pressure relief valve provides the least expensive and proven means for protection against both excessive temperature and pressure emergency conditions. Fully automatic temperature and pressure relief protection for domestic hot water supply tanks and heaters based on the latest ANSI Z21.22 Listing requirements for temperature discharge capacity.

  • Non-mechanical seat-to-disc alignment
  • Thermostat is accurate and proven, exclusively designed and manufactured by Watts
  • Tamper-resistant bonnet screws
  • Feature a unique thermostat with a special thermo-bonded coating
  • Documentation

    Technical Specs

    SKU: 59215NL
    Model: 0121457
    pressure rating: 75 - 150 psi temperature rating: 210 deg F
    product type: Temperature & Pressure Relief Valves type: Automatic Reseating, No-Lead
    product upc code: 098268585384 nominal size: 1 x 1"
    material: Bronze prop65 warning: California Proposition 65 Warning, This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
    series: 140X Series reference number: 1 LF140X6 150-210
    country of origin: US connection type: Female x Female
    btu rating: 670000 BTUH dimensions: 3 Inch Width x 5-3/4 Inch Height

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