Watts 0559125 Valve
For high-demand commercial and institutional mechanical rooms, the Watts 0559125 (Model LFN170-M3) is the industry standard for reliable hot water master tempering. This 1-inch thermostatic mixing valve features a robust lead free brass body and a precision paraffin-based thermostat designed to maintain consistent outlet temperatures between 90-180F. Engineered for installation at the hot water source, it delivers a high-capacity flow of up to 68 GPM at 45 psi, ensuring stable distribution throughout the building’s piping system. The single-seat design provides a positive shut-off in the event of cold water supply failure, protecting the downstream system. With polysulfone internals that resist corrosion and lime buildup, this valve is built for longevity in harsh water conditions. It meets ASSE 1017 and IAPMO cUPC standards, providing the technical specifications required by veteran contractors for code-compliant domestic potable water applications.
Key Benefits for the Contractor- Precise Thermal Control: The copper paraffin thermostat assembly ensures an accurate +/- 5°F outlet temperature accuracy.
- Lead Free Compliance: Constructed with Lead Free brass to meet all federal and state requirements for potable water systems.
- Vandal-Resistant Security: Features a lockable temperature adjustment screw to prevent unauthorized tampering in institutional settings.
- Ease of Retrofit: Rough-in dimensions are consistent with earlier M2 models, making this LFN170-M3-1" a fast drop-in replacement.
- High Durability: Heat-resistant polysulfone internals significantly reduce the risk of liming and service callbacks.
Is this valve suitable for point-of-use anti-scald protection?
No. As a master tempering valve listed to ASSE 1017, it is designed for source-side distribution. You must use ASSE 1016, 1069, or 1070 listed devices at the fixtures for final point-of-use protection.
What is the minimum flow requirement for this 1-inch model?
To maintain temperature stability and meet ASSE 1017 standards, the LFN170-M3 requires a minimum flow rate of 4.0 GPM.
Can this be used with high-temperature boiler loops?
This valve is rated for a maximum hot water inlet temperature of 200°F. Ensure your mixed water temperature setting is at least 5°F below the hot water supply temperature for optimal performance.
This item is not eligible for free shipping.
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: $1,291.47
-65%$1,291.47
$452.01Watts 0559125 Valve
For high-demand commercial and institutional mechanical rooms, the Watts 0559125 (Model LFN170-M3) is the industry standard for reliable hot water master tempering. This 1-inch thermostatic mixing valve features a robust lead free brass body and a precision paraffin-based thermostat designed to maintain consistent outlet temperatures between 90-180F. Engineered for installation at the hot water source, it delivers a high-capacity flow of up to 68 GPM at 45 psi, ensuring stable distribution throughout the building’s piping system. The single-seat design provides a positive shut-off in the event of cold water supply failure, protecting the downstream system. With polysulfone internals that resist corrosion and lime buildup, this valve is built for longevity in harsh water conditions. It meets ASSE 1017 and IAPMO cUPC standards, providing the technical specifications required by veteran contractors for code-compliant domestic potable water applications.
Key Benefits for the Contractor- Precise Thermal Control: The copper paraffin thermostat assembly ensures an accurate +/- 5°F outlet temperature accuracy.
- Lead Free Compliance: Constructed with Lead Free brass to meet all federal and state requirements for potable water systems.
- Vandal-Resistant Security: Features a lockable temperature adjustment screw to prevent unauthorized tampering in institutional settings.
- Ease of Retrofit: Rough-in dimensions are consistent with earlier M2 models, making this LFN170-M3-1" a fast drop-in replacement.
- High Durability: Heat-resistant polysulfone internals significantly reduce the risk of liming and service callbacks.
Is this valve suitable for point-of-use anti-scald protection?
No. As a master tempering valve listed to ASSE 1017, it is designed for source-side distribution. You must use ASSE 1016, 1069, or 1070 listed devices at the fixtures for final point-of-use protection.
What is the minimum flow requirement for this 1-inch model?
To maintain temperature stability and meet ASSE 1017 standards, the LFN170-M3 requires a minimum flow rate of 4.0 GPM.
Can this be used with high-temperature boiler loops?
This valve is rated for a maximum hot water inlet temperature of 200°F. Ensure your mixed water temperature setting is at least 5°F below the hot water supply temperature for optimal performance.
This item is not eligible for free shipping.
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-demand commercial and institutional mechanical rooms, the Watts 0559125 (Model LFN170-M3) is the industry standard for reliable hot water master tempering. This 1-inch thermostatic mixing valve features a robust lead free brass body and a precision paraffin-based thermostat designed to maintain consistent outlet temperatures between 90-180F. Engineered for installation at the hot water source, it delivers a high-capacity flow of up to 68 GPM at 45 psi, ensuring stable distribution throughout the building’s piping system. The single-seat design provides a positive shut-off in the event of cold water supply failure, protecting the downstream system. With polysulfone internals that resist corrosion and lime buildup, this valve is built for longevity in harsh water conditions. It meets ASSE 1017 and IAPMO cUPC standards, providing the technical specifications required by veteran contractors for code-compliant domestic potable water applications.
Key Benefits for the Contractor- Precise Thermal Control: The copper paraffin thermostat assembly ensures an accurate +/- 5°F outlet temperature accuracy.
- Lead Free Compliance: Constructed with Lead Free brass to meet all federal and state requirements for potable water systems.
- Vandal-Resistant Security: Features a lockable temperature adjustment screw to prevent unauthorized tampering in institutional settings.
- Ease of Retrofit: Rough-in dimensions are consistent with earlier M2 models, making this LFN170-M3-1" a fast drop-in replacement.
- High Durability: Heat-resistant polysulfone internals significantly reduce the risk of liming and service callbacks.
Is this valve suitable for point-of-use anti-scald protection?
No. As a master tempering valve listed to ASSE 1017, it is designed for source-side distribution. You must use ASSE 1016, 1069, or 1070 listed devices at the fixtures for final point-of-use protection.
What is the minimum flow requirement for this 1-inch model?
To maintain temperature stability and meet ASSE 1017 standards, the LFN170-M3 requires a minimum flow rate of 4.0 GPM.
Can this be used with high-temperature boiler loops?
This valve is rated for a maximum hot water inlet temperature of 200°F. Ensure your mixed water temperature setting is at least 5°F below the hot water supply temperature for optimal performance.
This item is not eligible for free shipping.
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.
