
Watts 0315130 Valve
The Watts 0315130 (Model N240X-6) is a heavy-duty, 1-inch automatic reseating temperature and pressure relief valve designed specifically for commercial water heating applications. Engineered with a rugged bronze body and a 6-inch stainless steel extension thermostat, this T&P relief valve is built to handle high-capacity demands, boasting an ASME steam relief capacity of 730,000 BTU/hr at a 150 PSI pressure setting. Its primary function is to provide critical protection for hot water supply tanks by discharging water when temperatures hit 210°F or internal pressure exceeds safe thresholds.
For contractors, the N240X-6 excels in reliability due to its non-mechanical seat-to-disc alignment and tamper-resistant bonnet screws, which prevent unauthorized field adjustments. This model features 1-inch FNPT inlet and outlet connections, ensuring a seamless fit into high-flow commercial systems. The Watts N240X series is widely recognized for its accurate thermostat performance and automatic reseating capability, which minimizes water waste after an over-pressure event. To ensure code compliance and system safety, always verify the BTU rating of the heater matches the valve’s discharge capacity before installation.
Key Benefits
- High-Capacity Discharge: Rated for up to 730,000 BTU/hr to protect large-scale commercial water heaters.
- Durable Construction: Features a corrosion-resistant bronze body and stainless steel internal springs for long-term service in harsh water conditions.
- Precision Safety: Includes a 6-inch stainless steel thermostat tube for accurate temperature sensing within the hot water outlet.
- Maintenance-Friendly: Equipped with a manual test lever and tamper-resistant bonnet screws to streamline inspections while maintaining safety settings.
- Automatic Reseating: The valve is designed to close automatically after pressure or temperature returns to safe levels, preventing continuous drainage.
Common Questions
What is the difference between N240X and N241X?
The N240X features a female NPT inlet, while the N241X typically utilizes a male NPT inlet. Both offer the same ASME rated protection levels and 730,000 BTU capacity.
Why is my T&P valve dripping after installation?
Dripping is often caused by thermal expansion in a closed system or debris trapped on the valve seat. If the system pressure exceeds 150 PSI, the valve is performing its intended safety function.
Can this valve be installed in any orientation?
While the valve can be installed in several positions, the thermostat probe must be submerged in the top 6 inches of the water tank to accurately sense temperature spikes. Local codes usually dictate specific discharge pipe routing.
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: $870.80
-65%$870.80
$304.78Watts 0315130 Valve
The Watts 0315130 (Model N240X-6) is a heavy-duty, 1-inch automatic reseating temperature and pressure relief valve designed specifically for commercial water heating applications. Engineered with a rugged bronze body and a 6-inch stainless steel extension thermostat, this T&P relief valve is built to handle high-capacity demands, boasting an ASME steam relief capacity of 730,000 BTU/hr at a 150 PSI pressure setting. Its primary function is to provide critical protection for hot water supply tanks by discharging water when temperatures hit 210°F or internal pressure exceeds safe thresholds.
For contractors, the N240X-6 excels in reliability due to its non-mechanical seat-to-disc alignment and tamper-resistant bonnet screws, which prevent unauthorized field adjustments. This model features 1-inch FNPT inlet and outlet connections, ensuring a seamless fit into high-flow commercial systems. The Watts N240X series is widely recognized for its accurate thermostat performance and automatic reseating capability, which minimizes water waste after an over-pressure event. To ensure code compliance and system safety, always verify the BTU rating of the heater matches the valve’s discharge capacity before installation.
Key Benefits
- High-Capacity Discharge: Rated for up to 730,000 BTU/hr to protect large-scale commercial water heaters.
- Durable Construction: Features a corrosion-resistant bronze body and stainless steel internal springs for long-term service in harsh water conditions.
- Precision Safety: Includes a 6-inch stainless steel thermostat tube for accurate temperature sensing within the hot water outlet.
- Maintenance-Friendly: Equipped with a manual test lever and tamper-resistant bonnet screws to streamline inspections while maintaining safety settings.
- Automatic Reseating: The valve is designed to close automatically after pressure or temperature returns to safe levels, preventing continuous drainage.
Common Questions
What is the difference between N240X and N241X?
The N240X features a female NPT inlet, while the N241X typically utilizes a male NPT inlet. Both offer the same ASME rated protection levels and 730,000 BTU capacity.
Why is my T&P valve dripping after installation?
Dripping is often caused by thermal expansion in a closed system or debris trapped on the valve seat. If the system pressure exceeds 150 PSI, the valve is performing its intended safety function.
Can this valve be installed in any orientation?
While the valve can be installed in several positions, the thermostat probe must be submerged in the top 6 inches of the water tank to accurately sense temperature spikes. Local codes usually dictate specific discharge pipe routing.
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.
Product Information
Product Information
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Description
The Watts 0315130 (Model N240X-6) is a heavy-duty, 1-inch automatic reseating temperature and pressure relief valve designed specifically for commercial water heating applications. Engineered with a rugged bronze body and a 6-inch stainless steel extension thermostat, this T&P relief valve is built to handle high-capacity demands, boasting an ASME steam relief capacity of 730,000 BTU/hr at a 150 PSI pressure setting. Its primary function is to provide critical protection for hot water supply tanks by discharging water when temperatures hit 210°F or internal pressure exceeds safe thresholds.
For contractors, the N240X-6 excels in reliability due to its non-mechanical seat-to-disc alignment and tamper-resistant bonnet screws, which prevent unauthorized field adjustments. This model features 1-inch FNPT inlet and outlet connections, ensuring a seamless fit into high-flow commercial systems. The Watts N240X series is widely recognized for its accurate thermostat performance and automatic reseating capability, which minimizes water waste after an over-pressure event. To ensure code compliance and system safety, always verify the BTU rating of the heater matches the valve’s discharge capacity before installation.
Key Benefits
- High-Capacity Discharge: Rated for up to 730,000 BTU/hr to protect large-scale commercial water heaters.
- Durable Construction: Features a corrosion-resistant bronze body and stainless steel internal springs for long-term service in harsh water conditions.
- Precision Safety: Includes a 6-inch stainless steel thermostat tube for accurate temperature sensing within the hot water outlet.
- Maintenance-Friendly: Equipped with a manual test lever and tamper-resistant bonnet screws to streamline inspections while maintaining safety settings.
- Automatic Reseating: The valve is designed to close automatically after pressure or temperature returns to safe levels, preventing continuous drainage.
Common Questions
What is the difference between N240X and N241X?
The N240X features a female NPT inlet, while the N241X typically utilizes a male NPT inlet. Both offer the same ASME rated protection levels and 730,000 BTU capacity.
Why is my T&P valve dripping after installation?
Dripping is often caused by thermal expansion in a closed system or debris trapped on the valve seat. If the system pressure exceeds 150 PSI, the valve is performing its intended safety function.
Can this valve be installed in any orientation?
While the valve can be installed in several positions, the thermostat probe must be submerged in the top 6 inches of the water tank to accurately sense temperature spikes. Local codes usually dictate specific discharge pipe routing.
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.












