Watts 0257564 Valve
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Watts 0257564 Valve

Watts 0257564 Valve

The Watts 0257564 Valve (Model 140X-5) is a heavy-duty, automatic reseating temperature and pressure relief valve designed for high-capacity commercial water heating systems. Engineered with a durable bronze body and 3/4-inch FNPT inlet/outlet connections, this valve provides critical protection for domestic hot water supply tanks. It features an ASME rating of 1,438,000 BTU/hr and a CSA rating of 205,000 BTU/hr, ensuring it handles massive thermal loads in industrial environments. The 5-inch extension thermostat is specifically designed for installation in the hot water outlet, featuring a specialized thermo-bonded coating to prevent mineral buildup and ensure accurate sensing at the 210°F temperature setpoint. Operating with a standard 150 psi pressure relief setting, the Watts 140X-5-150 utilizes a non-mechanical seat-to-disc alignment for consistent reseating after discharge. For contractors, this 3/4 inch T&P relief valve offers reliable, code-compliant performance with tamper-resistant bonnet screws and a reinforced test lever for manual diagnostic checks during routine maintenance.

Key Benefits:
  • High BTU Capacity: Industrial-grade 1,438,000 BTU/hr ASME rating for large-scale commercial water heaters and supply tanks.
  • Automatic Reseating: Advanced non-mechanical seat-to-disc alignment ensures the valve closes securely after a pressure or temperature event.
  • Corrosion Resistance: Lead-free-style bronze body construction and thermo-bonded thermostat coating provide longevity in aggressive water conditions.
  • Precision Sensing: The 5-inch probe reaches deep into the hot water outlet to accurately detect 210°F thermal spikes before they reach critical levels.
Common Questions:

What is the difference between the 140S and 140X models?
The Model 140S features a short thermostat for direct tank tapping installation, while the 140X (like this unit) uses an extension thermostat designed for installation within the hot water outlet piping.

Can this valve be used in potable water systems?
This specific model is designed for commercial water heating applications; however, verify local codes as non-lead-free bronze versions are restricted for certain potable water uses depending on the jurisdiction and installation date.

Why is the 150 psi setting standard for commercial tanks?
A 150 psi setting aligns with the maximum working pressure of most commercial water heater tanks (typically 150-160 psi), providing a safety buffer while preventing premature discharge during normal high-pressure cycles.

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.

$215.17

Original: $614.77

-65%
Watts 0257564 Valve

$614.77

$215.17

Watts 0257564 Valve

The Watts 0257564 Valve (Model 140X-5) is a heavy-duty, automatic reseating temperature and pressure relief valve designed for high-capacity commercial water heating systems. Engineered with a durable bronze body and 3/4-inch FNPT inlet/outlet connections, this valve provides critical protection for domestic hot water supply tanks. It features an ASME rating of 1,438,000 BTU/hr and a CSA rating of 205,000 BTU/hr, ensuring it handles massive thermal loads in industrial environments. The 5-inch extension thermostat is specifically designed for installation in the hot water outlet, featuring a specialized thermo-bonded coating to prevent mineral buildup and ensure accurate sensing at the 210°F temperature setpoint. Operating with a standard 150 psi pressure relief setting, the Watts 140X-5-150 utilizes a non-mechanical seat-to-disc alignment for consistent reseating after discharge. For contractors, this 3/4 inch T&P relief valve offers reliable, code-compliant performance with tamper-resistant bonnet screws and a reinforced test lever for manual diagnostic checks during routine maintenance.

Key Benefits:
  • High BTU Capacity: Industrial-grade 1,438,000 BTU/hr ASME rating for large-scale commercial water heaters and supply tanks.
  • Automatic Reseating: Advanced non-mechanical seat-to-disc alignment ensures the valve closes securely after a pressure or temperature event.
  • Corrosion Resistance: Lead-free-style bronze body construction and thermo-bonded thermostat coating provide longevity in aggressive water conditions.
  • Precision Sensing: The 5-inch probe reaches deep into the hot water outlet to accurately detect 210°F thermal spikes before they reach critical levels.
Common Questions:

What is the difference between the 140S and 140X models?
The Model 140S features a short thermostat for direct tank tapping installation, while the 140X (like this unit) uses an extension thermostat designed for installation within the hot water outlet piping.

Can this valve be used in potable water systems?
This specific model is designed for commercial water heating applications; however, verify local codes as non-lead-free bronze versions are restricted for certain potable water uses depending on the jurisdiction and installation date.

Why is the 150 psi setting standard for commercial tanks?
A 150 psi setting aligns with the maximum working pressure of most commercial water heater tanks (typically 150-160 psi), providing a safety buffer while preventing premature discharge during normal high-pressure cycles.

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

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Description

The Watts 0257564 Valve (Model 140X-5) is a heavy-duty, automatic reseating temperature and pressure relief valve designed for high-capacity commercial water heating systems. Engineered with a durable bronze body and 3/4-inch FNPT inlet/outlet connections, this valve provides critical protection for domestic hot water supply tanks. It features an ASME rating of 1,438,000 BTU/hr and a CSA rating of 205,000 BTU/hr, ensuring it handles massive thermal loads in industrial environments. The 5-inch extension thermostat is specifically designed for installation in the hot water outlet, featuring a specialized thermo-bonded coating to prevent mineral buildup and ensure accurate sensing at the 210°F temperature setpoint. Operating with a standard 150 psi pressure relief setting, the Watts 140X-5-150 utilizes a non-mechanical seat-to-disc alignment for consistent reseating after discharge. For contractors, this 3/4 inch T&P relief valve offers reliable, code-compliant performance with tamper-resistant bonnet screws and a reinforced test lever for manual diagnostic checks during routine maintenance.

Key Benefits:
  • High BTU Capacity: Industrial-grade 1,438,000 BTU/hr ASME rating for large-scale commercial water heaters and supply tanks.
  • Automatic Reseating: Advanced non-mechanical seat-to-disc alignment ensures the valve closes securely after a pressure or temperature event.
  • Corrosion Resistance: Lead-free-style bronze body construction and thermo-bonded thermostat coating provide longevity in aggressive water conditions.
  • Precision Sensing: The 5-inch probe reaches deep into the hot water outlet to accurately detect 210°F thermal spikes before they reach critical levels.
Common Questions:

What is the difference between the 140S and 140X models?
The Model 140S features a short thermostat for direct tank tapping installation, while the 140X (like this unit) uses an extension thermostat designed for installation within the hot water outlet piping.

Can this valve be used in potable water systems?
This specific model is designed for commercial water heating applications; however, verify local codes as non-lead-free bronze versions are restricted for certain potable water uses depending on the jurisdiction and installation date.

Why is the 150 psi setting standard for commercial tanks?
A 150 psi setting aligns with the maximum working pressure of most commercial water heater tanks (typically 150-160 psi), providing a safety buffer while preventing premature discharge during normal high-pressure cycles.

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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