Watts 0121344 Valve
The Watts 0121344 (Series LF100XL-4-175) is a heavy-duty 3/4 inch T&P relief valve designed specifically for hot water storage tanks and commercial water heater applications. Engineered with a lead-free copper silicon alloy body, this valve provides critical automatic temperature and pressure protection for systems rated up to 105,000 BTU/hr. The 100XL-4 model features an extended 4-inch thermostat with a specialized thermo-bonded coating, ensuring precise thermal response and resisting mineral buildup in aggressive water conditions. Set at a 175 psi relief pressure and a 210°F temperature relief threshold, this valve utilizes a stainless steel spring and a dedicated test lever for manual diagnostic checks. With a standard MNPT inlet and FNPT outlet, it integrates seamlessly into existing piping to prevent catastrophic tank failure during emergency over-pressurization or runaway heating cycles. This component is ASME rated and CSA listed, meeting strict institutional safety standards for plumbing and HVAC contractors.
Key Benefits
- High-Pressure Threshold: Factory set at 175 psi to accommodate high-head systems and specific commercial storage tank requirements.
- Extended Probe Design: The 4-inch extension thermostat ensures the sensing element is accurately submerged in the hottest water at the top of the tank.
- Corrosion Resistance: Features a lead-free bronze body and a stainless steel internal spring for long-term durability in potable water systems.
- Industry Compliance: Fully ASME Section IV rated and CSA certified to ANSI Z21.22, ensuring code compliance for professional installations.
- Thermo-Bonded Coating: The unique thermostat coating prevents adhesion of scale and lime, maintaining sensitivity over the life of the valve.
Common Questions
What is the BTU discharge capacity for this valve?
The Watts LF100XL-4 is CSA rated for steam discharge up to 105,000 BTU/hr and is suitable for heaters within that thermal input range.
Can this valve be installed in any orientation?
For proper temperature and pressure relief, the valve must be installed so the thermostat element is immersed in the water within the top 6 inches of the tank, typically in a vertical or horizontal position as specified by local plumbing codes.
Why choose the 4-inch probe over the standard length?
The 4-inch extension is required for tanks with thick insulation or those with specific tapping depths where a standard probe cannot reach the core temperature region of the water.
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: $55.40
-65%$55.40
$19.39Watts 0121344 Valve
The Watts 0121344 (Series LF100XL-4-175) is a heavy-duty 3/4 inch T&P relief valve designed specifically for hot water storage tanks and commercial water heater applications. Engineered with a lead-free copper silicon alloy body, this valve provides critical automatic temperature and pressure protection for systems rated up to 105,000 BTU/hr. The 100XL-4 model features an extended 4-inch thermostat with a specialized thermo-bonded coating, ensuring precise thermal response and resisting mineral buildup in aggressive water conditions. Set at a 175 psi relief pressure and a 210°F temperature relief threshold, this valve utilizes a stainless steel spring and a dedicated test lever for manual diagnostic checks. With a standard MNPT inlet and FNPT outlet, it integrates seamlessly into existing piping to prevent catastrophic tank failure during emergency over-pressurization or runaway heating cycles. This component is ASME rated and CSA listed, meeting strict institutional safety standards for plumbing and HVAC contractors.
Key Benefits
- High-Pressure Threshold: Factory set at 175 psi to accommodate high-head systems and specific commercial storage tank requirements.
- Extended Probe Design: The 4-inch extension thermostat ensures the sensing element is accurately submerged in the hottest water at the top of the tank.
- Corrosion Resistance: Features a lead-free bronze body and a stainless steel internal spring for long-term durability in potable water systems.
- Industry Compliance: Fully ASME Section IV rated and CSA certified to ANSI Z21.22, ensuring code compliance for professional installations.
- Thermo-Bonded Coating: The unique thermostat coating prevents adhesion of scale and lime, maintaining sensitivity over the life of the valve.
Common Questions
What is the BTU discharge capacity for this valve?
The Watts LF100XL-4 is CSA rated for steam discharge up to 105,000 BTU/hr and is suitable for heaters within that thermal input range.
Can this valve be installed in any orientation?
For proper temperature and pressure relief, the valve must be installed so the thermostat element is immersed in the water within the top 6 inches of the tank, typically in a vertical or horizontal position as specified by local plumbing codes.
Why choose the 4-inch probe over the standard length?
The 4-inch extension is required for tanks with thick insulation or those with specific tapping depths where a standard probe cannot reach the core temperature region of the water.
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 0121344 (Series LF100XL-4-175) is a heavy-duty 3/4 inch T&P relief valve designed specifically for hot water storage tanks and commercial water heater applications. Engineered with a lead-free copper silicon alloy body, this valve provides critical automatic temperature and pressure protection for systems rated up to 105,000 BTU/hr. The 100XL-4 model features an extended 4-inch thermostat with a specialized thermo-bonded coating, ensuring precise thermal response and resisting mineral buildup in aggressive water conditions. Set at a 175 psi relief pressure and a 210°F temperature relief threshold, this valve utilizes a stainless steel spring and a dedicated test lever for manual diagnostic checks. With a standard MNPT inlet and FNPT outlet, it integrates seamlessly into existing piping to prevent catastrophic tank failure during emergency over-pressurization or runaway heating cycles. This component is ASME rated and CSA listed, meeting strict institutional safety standards for plumbing and HVAC contractors.
Key Benefits
- High-Pressure Threshold: Factory set at 175 psi to accommodate high-head systems and specific commercial storage tank requirements.
- Extended Probe Design: The 4-inch extension thermostat ensures the sensing element is accurately submerged in the hottest water at the top of the tank.
- Corrosion Resistance: Features a lead-free bronze body and a stainless steel internal spring for long-term durability in potable water systems.
- Industry Compliance: Fully ASME Section IV rated and CSA certified to ANSI Z21.22, ensuring code compliance for professional installations.
- Thermo-Bonded Coating: The unique thermostat coating prevents adhesion of scale and lime, maintaining sensitivity over the life of the valve.
Common Questions
What is the BTU discharge capacity for this valve?
The Watts LF100XL-4 is CSA rated for steam discharge up to 105,000 BTU/hr and is suitable for heaters within that thermal input range.
Can this valve be installed in any orientation?
For proper temperature and pressure relief, the valve must be installed so the thermostat element is immersed in the water within the top 6 inches of the tank, typically in a vertical or horizontal position as specified by local plumbing codes.
Why choose the 4-inch probe over the standard length?
The 4-inch extension is required for tanks with thick insulation or those with specific tapping depths where a standard probe cannot reach the core temperature region of the water.
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.
