Watts 0121587 Regulator
The Watts 0121587 (Series LFN240X-9) is a heavy-duty 1-inch T&P relief valve designed for high-capacity commercial hot water supply tanks and heaters. Engineered with lead-free copper silicon alloy, this automatic reseating valve provides essential protection against catastrophic pressure and temperature spikes. It features a specific 9-inch stainless steel thermostat probe to ensure accurate thermal sensing deep within the tank tapping. The unit is factory-set for 125 PSI pressure relief and 210°F temperature relief, complying with ANSI Z21.22 and ASME Section IV standards. Its non-mechanical seat-to-disc alignment and thermo-bonded coated thermostat minimize mineral buildup and ensure a reliable seal even after repeated cycles. For contractors managing potable water systems, the LFN240 series offers a rugged solution that meets rigorous lead-free installation requirements while featuring tamper-resistant bonnet screws to prevent unauthorized field adjustments.
- Lead-Free Construction: Built with a lead-free copper silicon alloy body to satisfy all potable water safety standards and commercial compliance codes.
- Precise Thermal Sensing: Includes a 9-inch SS thermostat tube that provides superior reach into the hot water tank for accurate 210°F relief monitoring.
- High Pressure Rating: Calibrated for 125 PSI discharge, making it ideal for large-scale commercial water heater protection.
- Automatic Reseating: Features a self-closing design that restores the system seal once temperatures or pressures return to safe operating levels.
- Contractor-Grade Reliability: Equipped with a test lever for manual safety checks and NPT female threaded connections for streamlined installation.
Common Questions
What is the steam discharge capacity for the 1-inch LFN240 series?
The Watts LFN240X-9 is designed for high-capacity applications; however, the exact BTU/hr rating depends on the specific pressure setting. At 125 PSI, these valves typically handle significantly higher loads than standard residential 3/4-inch units to prevent thermal expansion risks in commercial tanks.
Can the thermostat probe be trimmed if it is too long for the tapping?
No, the 9-inch stainless steel extension thermostat must never be cut or altered. Modifying the probe will destroy the thermo-bonded coating and void the safety calibration, potentially preventing the valve from opening at the 210°F setpoint.
Why is the valve dripping after reaching the pressure setpoint?
Occasional dripping often indicates thermal expansion in a closed system or debris trapped on the seat. If the valve fails to reseat fully, use the test lever to flush the seat. If dripping persists, ensure a thermal expansion tank is installed to manage pressure fluctuations.
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: $2,544.08
-65%$2,544.08
$890.43Watts 0121587 Regulator
The Watts 0121587 (Series LFN240X-9) is a heavy-duty 1-inch T&P relief valve designed for high-capacity commercial hot water supply tanks and heaters. Engineered with lead-free copper silicon alloy, this automatic reseating valve provides essential protection against catastrophic pressure and temperature spikes. It features a specific 9-inch stainless steel thermostat probe to ensure accurate thermal sensing deep within the tank tapping. The unit is factory-set for 125 PSI pressure relief and 210°F temperature relief, complying with ANSI Z21.22 and ASME Section IV standards. Its non-mechanical seat-to-disc alignment and thermo-bonded coated thermostat minimize mineral buildup and ensure a reliable seal even after repeated cycles. For contractors managing potable water systems, the LFN240 series offers a rugged solution that meets rigorous lead-free installation requirements while featuring tamper-resistant bonnet screws to prevent unauthorized field adjustments.
- Lead-Free Construction: Built with a lead-free copper silicon alloy body to satisfy all potable water safety standards and commercial compliance codes.
- Precise Thermal Sensing: Includes a 9-inch SS thermostat tube that provides superior reach into the hot water tank for accurate 210°F relief monitoring.
- High Pressure Rating: Calibrated for 125 PSI discharge, making it ideal for large-scale commercial water heater protection.
- Automatic Reseating: Features a self-closing design that restores the system seal once temperatures or pressures return to safe operating levels.
- Contractor-Grade Reliability: Equipped with a test lever for manual safety checks and NPT female threaded connections for streamlined installation.
Common Questions
What is the steam discharge capacity for the 1-inch LFN240 series?
The Watts LFN240X-9 is designed for high-capacity applications; however, the exact BTU/hr rating depends on the specific pressure setting. At 125 PSI, these valves typically handle significantly higher loads than standard residential 3/4-inch units to prevent thermal expansion risks in commercial tanks.
Can the thermostat probe be trimmed if it is too long for the tapping?
No, the 9-inch stainless steel extension thermostat must never be cut or altered. Modifying the probe will destroy the thermo-bonded coating and void the safety calibration, potentially preventing the valve from opening at the 210°F setpoint.
Why is the valve dripping after reaching the pressure setpoint?
Occasional dripping often indicates thermal expansion in a closed system or debris trapped on the seat. If the valve fails to reseat fully, use the test lever to flush the seat. If dripping persists, ensure a thermal expansion tank is installed to manage pressure fluctuations.
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.
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Description
The Watts 0121587 (Series LFN240X-9) is a heavy-duty 1-inch T&P relief valve designed for high-capacity commercial hot water supply tanks and heaters. Engineered with lead-free copper silicon alloy, this automatic reseating valve provides essential protection against catastrophic pressure and temperature spikes. It features a specific 9-inch stainless steel thermostat probe to ensure accurate thermal sensing deep within the tank tapping. The unit is factory-set for 125 PSI pressure relief and 210°F temperature relief, complying with ANSI Z21.22 and ASME Section IV standards. Its non-mechanical seat-to-disc alignment and thermo-bonded coated thermostat minimize mineral buildup and ensure a reliable seal even after repeated cycles. For contractors managing potable water systems, the LFN240 series offers a rugged solution that meets rigorous lead-free installation requirements while featuring tamper-resistant bonnet screws to prevent unauthorized field adjustments.
- Lead-Free Construction: Built with a lead-free copper silicon alloy body to satisfy all potable water safety standards and commercial compliance codes.
- Precise Thermal Sensing: Includes a 9-inch SS thermostat tube that provides superior reach into the hot water tank for accurate 210°F relief monitoring.
- High Pressure Rating: Calibrated for 125 PSI discharge, making it ideal for large-scale commercial water heater protection.
- Automatic Reseating: Features a self-closing design that restores the system seal once temperatures or pressures return to safe operating levels.
- Contractor-Grade Reliability: Equipped with a test lever for manual safety checks and NPT female threaded connections for streamlined installation.
Common Questions
What is the steam discharge capacity for the 1-inch LFN240 series?
The Watts LFN240X-9 is designed for high-capacity applications; however, the exact BTU/hr rating depends on the specific pressure setting. At 125 PSI, these valves typically handle significantly higher loads than standard residential 3/4-inch units to prevent thermal expansion risks in commercial tanks.
Can the thermostat probe be trimmed if it is too long for the tapping?
No, the 9-inch stainless steel extension thermostat must never be cut or altered. Modifying the probe will destroy the thermo-bonded coating and void the safety calibration, potentially preventing the valve from opening at the 210°F setpoint.
Why is the valve dripping after reaching the pressure setpoint?
Occasional dripping often indicates thermal expansion in a closed system or debris trapped on the seat. If the valve fails to reseat fully, use the test lever to flush the seat. If dripping persists, ensure a thermal expansion tank is installed to manage pressure fluctuations.
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.
