Lochinvar & A.O. Smith 100277954 Valve
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Lochinvar & A.O. Smith 100277954 Valve

Lochinvar & A.O. Smith 100277954 Valve

The Lochinvar & A.O. Smith 100277954 is a 3/4" 150# T&P Valve designed for high-pressure commercial and residential water heating systems. This temperature and pressure relief valve serves as a critical safety component, engineered to discharge water when inner tank temperatures exceed 210°F or pressures surpass 150 PSI. The 100277954 is the official manufacturer-specified 100167353 replacement valve, ensuring seamless mechanical compatibility and maintaining the original equipment manufacturer (OEM) safety certifications. Featuring a corrosion-resistant internal coating and a high-capacity discharge profile, this valve is essential for HVAC system maintenance and code compliance. Contractors should verify the probe length to ensure proper immersion in the domestic hot water (DHW) storage tank shell. This part is frequently used in Lochinvar Knight and A.O. Smith Cyclone series heaters where precise thermal expansion protection is non-negotiable for system longevity and job site safety.

Key Benefits

  • Direct OEM Replacement: Fully replaces legacy part number 100167353 with updated metallurgy.
  • Precise Calibration: Set to trigger at 150 PSI and 210°F to prevent tank rupture or dry-fire scenarios.
  • Standardized Threading: Features a 3/4" NPT inlet and outlet for standard hot water heater plumbing configurations.
  • Certified Construction: Meets ASME Section IV and ANSI Z21.22 requirements for relief valves.
  • High Discharge Capacity: Designed to vent high BTU ratings common in commercial boiler and heater applications.

Common Questions

Is the 100277954 interchangeable with the 100167353?
Yes, the 100277954 is the direct technical successor and updated part number for the 100167353. It maintains identical fitment and pressure ratings.

What causes a T&P valve to drip after installation?
Dripping usually indicates excessive system pressure from thermal expansion, often requiring an expansion tank, or that debris is trapped on the valve seat during the initial flush.

Can this valve be used on steam boilers?
No, this valve is specifically rated for water heating applications. Always verify the BTU/hr rating of the heater does not exceed the relief capacity listed on the valve tag.

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.

$52.45

Original: $149.86

-65%
Lochinvar & A.O. Smith 100277954 Valve

$149.86

$52.45

Lochinvar & A.O. Smith 100277954 Valve

The Lochinvar & A.O. Smith 100277954 is a 3/4" 150# T&P Valve designed for high-pressure commercial and residential water heating systems. This temperature and pressure relief valve serves as a critical safety component, engineered to discharge water when inner tank temperatures exceed 210°F or pressures surpass 150 PSI. The 100277954 is the official manufacturer-specified 100167353 replacement valve, ensuring seamless mechanical compatibility and maintaining the original equipment manufacturer (OEM) safety certifications. Featuring a corrosion-resistant internal coating and a high-capacity discharge profile, this valve is essential for HVAC system maintenance and code compliance. Contractors should verify the probe length to ensure proper immersion in the domestic hot water (DHW) storage tank shell. This part is frequently used in Lochinvar Knight and A.O. Smith Cyclone series heaters where precise thermal expansion protection is non-negotiable for system longevity and job site safety.

Key Benefits

  • Direct OEM Replacement: Fully replaces legacy part number 100167353 with updated metallurgy.
  • Precise Calibration: Set to trigger at 150 PSI and 210°F to prevent tank rupture or dry-fire scenarios.
  • Standardized Threading: Features a 3/4" NPT inlet and outlet for standard hot water heater plumbing configurations.
  • Certified Construction: Meets ASME Section IV and ANSI Z21.22 requirements for relief valves.
  • High Discharge Capacity: Designed to vent high BTU ratings common in commercial boiler and heater applications.

Common Questions

Is the 100277954 interchangeable with the 100167353?
Yes, the 100277954 is the direct technical successor and updated part number for the 100167353. It maintains identical fitment and pressure ratings.

What causes a T&P valve to drip after installation?
Dripping usually indicates excessive system pressure from thermal expansion, often requiring an expansion tank, or that debris is trapped on the valve seat during the initial flush.

Can this valve be used on steam boilers?
No, this valve is specifically rated for water heating applications. Always verify the BTU/hr rating of the heater does not exceed the relief capacity listed on the valve tag.

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 Lochinvar & A.O. Smith 100277954 is a 3/4" 150# T&P Valve designed for high-pressure commercial and residential water heating systems. This temperature and pressure relief valve serves as a critical safety component, engineered to discharge water when inner tank temperatures exceed 210°F or pressures surpass 150 PSI. The 100277954 is the official manufacturer-specified 100167353 replacement valve, ensuring seamless mechanical compatibility and maintaining the original equipment manufacturer (OEM) safety certifications. Featuring a corrosion-resistant internal coating and a high-capacity discharge profile, this valve is essential for HVAC system maintenance and code compliance. Contractors should verify the probe length to ensure proper immersion in the domestic hot water (DHW) storage tank shell. This part is frequently used in Lochinvar Knight and A.O. Smith Cyclone series heaters where precise thermal expansion protection is non-negotiable for system longevity and job site safety.

Key Benefits

  • Direct OEM Replacement: Fully replaces legacy part number 100167353 with updated metallurgy.
  • Precise Calibration: Set to trigger at 150 PSI and 210°F to prevent tank rupture or dry-fire scenarios.
  • Standardized Threading: Features a 3/4" NPT inlet and outlet for standard hot water heater plumbing configurations.
  • Certified Construction: Meets ASME Section IV and ANSI Z21.22 requirements for relief valves.
  • High Discharge Capacity: Designed to vent high BTU ratings common in commercial boiler and heater applications.

Common Questions

Is the 100277954 interchangeable with the 100167353?
Yes, the 100277954 is the direct technical successor and updated part number for the 100167353. It maintains identical fitment and pressure ratings.

What causes a T&P valve to drip after installation?
Dripping usually indicates excessive system pressure from thermal expansion, often requiring an expansion tank, or that debris is trapped on the valve seat during the initial flush.

Can this valve be used on steam boilers?
No, this valve is specifically rated for water heating applications. Always verify the BTU/hr rating of the heater does not exceed the relief capacity listed on the valve tag.

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.