Description
The Watts F121459 LF140X-8 is a 3/4″ lead-free automatic reseating temperature and pressure relief valve engineered for dependable water heater and hydronic system protection. Designed to comply with lead-free standards, this valve automatically reseats after actuation, eliminating the need for manual reset and reducing service calls. The 8″ coated thermostat element provides accurate temperature sensing, while the included discharge line flood sensor adds an extra layer of protection by detecting leaks at the point of discharge.
Key Features
- Lead-free construction — compliant with lead-free installation requirements
- Automatic reseating design — resets without manual intervention after pressure or temperature event
- 3/4″ connection size for standard water heater and boiler applications
- 150 psi maximum pressure rating
- 210°F maximum temperature rating
- 8″ coated thermostat element for precise temperature sensing
- Discharge line flood sensor included for leak detection at the relief outlet
Specifications
- Brand: Watts
- Model: LF140X-8
- SKU: F121459
- Connection Size: 3/4″
- Maximum Pressure: 150 psi
- Maximum Temperature: 210°F
- Thermostat Length: 8″ (coated)
- Lead-Free: Yes
- Flood Sensor: Included
Applications
- Residential and light commercial water heaters
- Hydronic heating systems and boilers
- Any pressurized hot water system requiring T&P overpressure and overtemperature protection
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