Watts 0121575 Valve
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Watts 0121575 Valve

Watts 0121575 Valve

The Watts 0121575 is a high-capacity ASME Section IV water pressure relief valve engineered for commercial hot water heating and domestic supply boiler systems. Built with a lead-free copper silicon alloy body, the Watts LF174A 2 inch valve is designed to manage thermal expansion and provide overpressure protection in demanding mechanical rooms. This model features a 150 PSI pressure setting and is capable of a massive steam discharge capacity of 14,370,000 BTU/hr. Its robust construction includes a non-metallic disc-to-metal seating and a stainless steel spring, ensuring reliable performance without sticking or freezing even in corrosive water conditions. The raised seat design prevents sediment from fouling the valve, while the 2" NPT female inlet and outlet connections allow for seamless integration into existing heavy-duty hydronic piping.

Key Benefits:
  • ASME Certified Protection: Rated for emergency safety relief in high-output boiler systems.
  • Corrosion Resistance: Lead-free copper silicon alloy body ensures longevity and code compliance.
  • Anti-Foul Design: Seat located above the drain minimizes sediment buildup and prevents water trapping.
  • Consistent Alignment: Non-mechanical seat-to-disc alignment prevents sticking and ensures a tight seal.
  • High BTU Capacity: Manages up to 14,370,000 BTU/hr, making it suitable for large-scale commercial applications.
Common Questions:

Is the Watts LF174A suitable for steam boilers?
No, this specific model is an ASME Water Relief Valve designed for hot water heating systems and pressurized storage tanks, not for steam service.

What is the maximum temperature rating for this valve?
The Watts 0121575 is rated for temperatures up to 250°F (121°C), making it ideal for high-temperature hydronic applications.

Can I use a smaller discharge line than the 2-inch outlet?
The discharge piping must be at least the same size as the valve outlet (2") and should pitch downward to a safe disposal point to ensure full capacity discharge during an event.

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.

$931.31

Original: $2,660.90

-65%
Watts 0121575 Valve

$2,660.90

$931.31

Watts 0121575 Valve

The Watts 0121575 is a high-capacity ASME Section IV water pressure relief valve engineered for commercial hot water heating and domestic supply boiler systems. Built with a lead-free copper silicon alloy body, the Watts LF174A 2 inch valve is designed to manage thermal expansion and provide overpressure protection in demanding mechanical rooms. This model features a 150 PSI pressure setting and is capable of a massive steam discharge capacity of 14,370,000 BTU/hr. Its robust construction includes a non-metallic disc-to-metal seating and a stainless steel spring, ensuring reliable performance without sticking or freezing even in corrosive water conditions. The raised seat design prevents sediment from fouling the valve, while the 2" NPT female inlet and outlet connections allow for seamless integration into existing heavy-duty hydronic piping.

Key Benefits:
  • ASME Certified Protection: Rated for emergency safety relief in high-output boiler systems.
  • Corrosion Resistance: Lead-free copper silicon alloy body ensures longevity and code compliance.
  • Anti-Foul Design: Seat located above the drain minimizes sediment buildup and prevents water trapping.
  • Consistent Alignment: Non-mechanical seat-to-disc alignment prevents sticking and ensures a tight seal.
  • High BTU Capacity: Manages up to 14,370,000 BTU/hr, making it suitable for large-scale commercial applications.
Common Questions:

Is the Watts LF174A suitable for steam boilers?
No, this specific model is an ASME Water Relief Valve designed for hot water heating systems and pressurized storage tanks, not for steam service.

What is the maximum temperature rating for this valve?
The Watts 0121575 is rated for temperatures up to 250°F (121°C), making it ideal for high-temperature hydronic applications.

Can I use a smaller discharge line than the 2-inch outlet?
The discharge piping must be at least the same size as the valve outlet (2") and should pitch downward to a safe disposal point to ensure full capacity discharge during an event.

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

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Description

The Watts 0121575 is a high-capacity ASME Section IV water pressure relief valve engineered for commercial hot water heating and domestic supply boiler systems. Built with a lead-free copper silicon alloy body, the Watts LF174A 2 inch valve is designed to manage thermal expansion and provide overpressure protection in demanding mechanical rooms. This model features a 150 PSI pressure setting and is capable of a massive steam discharge capacity of 14,370,000 BTU/hr. Its robust construction includes a non-metallic disc-to-metal seating and a stainless steel spring, ensuring reliable performance without sticking or freezing even in corrosive water conditions. The raised seat design prevents sediment from fouling the valve, while the 2" NPT female inlet and outlet connections allow for seamless integration into existing heavy-duty hydronic piping.

Key Benefits:
  • ASME Certified Protection: Rated for emergency safety relief in high-output boiler systems.
  • Corrosion Resistance: Lead-free copper silicon alloy body ensures longevity and code compliance.
  • Anti-Foul Design: Seat located above the drain minimizes sediment buildup and prevents water trapping.
  • Consistent Alignment: Non-mechanical seat-to-disc alignment prevents sticking and ensures a tight seal.
  • High BTU Capacity: Manages up to 14,370,000 BTU/hr, making it suitable for large-scale commercial applications.
Common Questions:

Is the Watts LF174A suitable for steam boilers?
No, this specific model is an ASME Water Relief Valve designed for hot water heating systems and pressurized storage tanks, not for steam service.

What is the maximum temperature rating for this valve?
The Watts 0121575 is rated for temperatures up to 250°F (121°C), making it ideal for high-temperature hydronic applications.

Can I use a smaller discharge line than the 2-inch outlet?
The discharge piping must be at least the same size as the valve outlet (2") and should pitch downward to a safe disposal point to ensure full capacity discharge during an event.

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.

Watts 0121575 Valve | GSIstore