Watts 0556006 Valve
For high-capacity commercial water heating systems, the Watts 0556006 Temperature and Pressure Relief Valve (Series 40XL) is the industry standard for fail-safe protection. Designed for 1-inch NPT connections, this ASME rated T&P valve features a 1,481,000 BTU/hr discharge capacity and is factory-set for 100 psi relief pressure. The 4-inch extension thermostat is engineered with a specialized thermo-bonded coating that effectively retards mineral accumulation and scale buildup, ensuring the probe remains sensitive to rapid temperature changes regardless of water quality. This automatic reseating relief valve utilizes a non-mechanical seat-to-disc alignment, providing a consistent, bubble-tight seal even after multiple high-temperature discharge cycles. Its bronze body and tamper-resistant bonnet screws are built for the rigors of heavy-duty mechanical rooms, protecting hot water supply tanks from catastrophic over-pressurization and thermal runaway at the critical 210°F (99°C) limit.
Key Benefits for Contractors:- Maximum Throughput: Massive 1,481,000 BTU/hr capacity makes it suitable for large-scale boiler and commercial tank installations.
- Enhanced Durability: Robust bronze construction resists corrosion, while the coated thermostat prevents calcification in high-mineral environments.
- Field Reliability: Fully automatic reseating technology eliminates the need for manual resets following a standard pressure event.
- Standard Compliance: Design certified by CSA to ANSI Z21.22 and meeting the rigorous standards of the ASME Boiler and Pressure Vessel Code.
- Integrated Safety: Features a 1-inch male NPT inlet and a 1-inch female NPT outlet for high-flow drainage during emergency conditions.
What is the difference between the 40XL and standard T&P valves?
The 40XL series features an extended shank and a specialized thermostat probe designed specifically for commercial tanks with thicker insulation. This ensures the sensory probe reaches the hottest water at the top of the tank for accurate thermal response.
Can this valve be used in lead-free applications?
This specific model (0556006) is a standard bronze unit. For jurisdictions requiring compliance with lead-free legislation, please check the equivalent Watts LF40XL models.
Why is the thermostat probe coated?
The thermo-bonded coating acts as a barrier against mineral deposits like calcium and lime. In commercial settings with high water turnover, this coating prevents the probe from becoming "insulated" by scale, which could otherwise delay life-saving thermal relief.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $970.28
-65%$970.28
$339.60Watts 0556006 Valve
For high-capacity commercial water heating systems, the Watts 0556006 Temperature and Pressure Relief Valve (Series 40XL) is the industry standard for fail-safe protection. Designed for 1-inch NPT connections, this ASME rated T&P valve features a 1,481,000 BTU/hr discharge capacity and is factory-set for 100 psi relief pressure. The 4-inch extension thermostat is engineered with a specialized thermo-bonded coating that effectively retards mineral accumulation and scale buildup, ensuring the probe remains sensitive to rapid temperature changes regardless of water quality. This automatic reseating relief valve utilizes a non-mechanical seat-to-disc alignment, providing a consistent, bubble-tight seal even after multiple high-temperature discharge cycles. Its bronze body and tamper-resistant bonnet screws are built for the rigors of heavy-duty mechanical rooms, protecting hot water supply tanks from catastrophic over-pressurization and thermal runaway at the critical 210°F (99°C) limit.
Key Benefits for Contractors:- Maximum Throughput: Massive 1,481,000 BTU/hr capacity makes it suitable for large-scale boiler and commercial tank installations.
- Enhanced Durability: Robust bronze construction resists corrosion, while the coated thermostat prevents calcification in high-mineral environments.
- Field Reliability: Fully automatic reseating technology eliminates the need for manual resets following a standard pressure event.
- Standard Compliance: Design certified by CSA to ANSI Z21.22 and meeting the rigorous standards of the ASME Boiler and Pressure Vessel Code.
- Integrated Safety: Features a 1-inch male NPT inlet and a 1-inch female NPT outlet for high-flow drainage during emergency conditions.
What is the difference between the 40XL and standard T&P valves?
The 40XL series features an extended shank and a specialized thermostat probe designed specifically for commercial tanks with thicker insulation. This ensures the sensory probe reaches the hottest water at the top of the tank for accurate thermal response.
Can this valve be used in lead-free applications?
This specific model (0556006) is a standard bronze unit. For jurisdictions requiring compliance with lead-free legislation, please check the equivalent Watts LF40XL models.
Why is the thermostat probe coated?
The thermo-bonded coating acts as a barrier against mineral deposits like calcium and lime. In commercial settings with high water turnover, this coating prevents the probe from becoming "insulated" by scale, which could otherwise delay life-saving thermal relief.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
For high-capacity commercial water heating systems, the Watts 0556006 Temperature and Pressure Relief Valve (Series 40XL) is the industry standard for fail-safe protection. Designed for 1-inch NPT connections, this ASME rated T&P valve features a 1,481,000 BTU/hr discharge capacity and is factory-set for 100 psi relief pressure. The 4-inch extension thermostat is engineered with a specialized thermo-bonded coating that effectively retards mineral accumulation and scale buildup, ensuring the probe remains sensitive to rapid temperature changes regardless of water quality. This automatic reseating relief valve utilizes a non-mechanical seat-to-disc alignment, providing a consistent, bubble-tight seal even after multiple high-temperature discharge cycles. Its bronze body and tamper-resistant bonnet screws are built for the rigors of heavy-duty mechanical rooms, protecting hot water supply tanks from catastrophic over-pressurization and thermal runaway at the critical 210°F (99°C) limit.
Key Benefits for Contractors:- Maximum Throughput: Massive 1,481,000 BTU/hr capacity makes it suitable for large-scale boiler and commercial tank installations.
- Enhanced Durability: Robust bronze construction resists corrosion, while the coated thermostat prevents calcification in high-mineral environments.
- Field Reliability: Fully automatic reseating technology eliminates the need for manual resets following a standard pressure event.
- Standard Compliance: Design certified by CSA to ANSI Z21.22 and meeting the rigorous standards of the ASME Boiler and Pressure Vessel Code.
- Integrated Safety: Features a 1-inch male NPT inlet and a 1-inch female NPT outlet for high-flow drainage during emergency conditions.
What is the difference between the 40XL and standard T&P valves?
The 40XL series features an extended shank and a specialized thermostat probe designed specifically for commercial tanks with thicker insulation. This ensures the sensory probe reaches the hottest water at the top of the tank for accurate thermal response.
Can this valve be used in lead-free applications?
This specific model (0556006) is a standard bronze unit. For jurisdictions requiring compliance with lead-free legislation, please check the equivalent Watts LF40XL models.
Why is the thermostat probe coated?
The thermo-bonded coating acts as a barrier against mineral deposits like calcium and lime. In commercial settings with high water turnover, this coating prevents the probe from becoming "insulated" by scale, which could otherwise delay life-saving thermal relief.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
