Description
The Watts 100XL-8-150 (SKU 0556001) is a 3/4-inch temperature and pressure relief valve engineered to provide dependable safety protection for residential and light commercial water heaters and hydronic heating systems. Designed to automatically discharge when system temperature or pressure exceeds safe operating limits, this valve helps prevent catastrophic equipment failure and ensures code-compliant installations.
Key Features
- 3/4″ NPT inlet connection for straightforward installation on standard water heaters and boilers
- 150 PSI pressure relief setting for reliable overpressure protection
- 100,000 BTU/hr rated capacity to match a wide range of residential and light commercial water heating equipment
- Automatic discharge action — opens immediately when temperature or pressure limits are exceeded
- Durable brass construction for corrosion resistance and long service life
- Watts 100XL series — a trusted industry-standard T&P relief valve line
Specifications
- SKU: 0556001
- Model: 100XL-8-150
- Connection Size: 3/4″ NPT
- Pressure Setting: 150 PSI
- BTU Rating: 100,000 BTU/hr
- Application: Water heaters, hydronic heating systems
Applications
- Residential and light commercial water heaters
- Hydronic boilers and heating systems
- Replacement T&P valve installations requiring 3/4″ NPT connection
- New construction and retrofit plumbing and HVAC projects
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