Description
The Watts F556013 is a 3/4″ lead-free automatic reseating temperature and pressure (T&P) relief valve engineered for reliable overpressure and overtemperature protection in water heater and hydronic heating applications. Rated at 125 psi and 210°F, this valve provides a critical safety barrier against dangerous pressure and temperature buildup. The lead-free construction ensures compliance with safe drinking water standards, making it suitable for potable water systems.
The LF40L-3 features an automatic reseating design that allows the valve to reseat and seal after a relief event without requiring immediate replacement, minimizing downtime and service calls. The 3″ coated thermostat element provides accurate temperature sensing, while the included discharge line flood sensor adds an extra layer of protection by alerting to any discharge activity at the valve outlet.
Key Features
- Lead-free construction — compliant with safe drinking water regulations
- Automatic reseating design for reliable, repeatable performance
- Rated pressure: 125 psi
- Rated temperature: 210°F
- 3/4″ connection size for standard water heater and hydronic system installations
- 3″ coated thermostat element for accurate temperature sensing
- Discharge line flood sensor included for added leak detection and safety
Application
- Residential and light commercial water heaters
- Hydronic heating systems
- Potable water systems requiring lead-free components
- Any application requiring ASME/ANSI-compliant T&P overpressure protection
Specifications
- Brand: Watts
- Model: LF40L-3
- SKU: F556013
- Connection Size: 3/4″
- Pressure Rating: 125 psi
- Temperature Rating: 210°F
- Thermostat Length: 3″ (coated)
- Lead-Free: Yes
- Discharge Line Flood Sensor: Included
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