
Conbraco 18C-402-27 Valve
The Conbraco 18C-402-27 is a professional-grade Temperature and Pressure Relief Valve (T&P valve) specifically engineered for the protection of high-capacity water heaters and storage tanks. This safety-critical component features a 3/4" MNPT inlet and a 3/4" FNPT outlet, built with a heavy-duty ASTM B584 bronze body to handle the rigors of commercial and industrial hydronic systems. With a fixed pressure setting of 125 PSI and a maximum temperature rating of 210°F, it ensures consistent system safety by discharging excess pressure or thermal expansion before residential or commercial vessels reach critical limits.
Designed for reliability in the field, this valve utilizes a 1.5-inch element coated with a unique non-metallic material to prevent galvanic corrosion and mineral buildup, which are common failure points in hard water applications. The 95,000 BTU/hr CSA rating makes it a standard choice for contractors performing maintenance or new installations on code-compliant domestic hot water systems. This ASME Section IV rated valve also incorporates a stainless steel spring and a silicone seat for positive shut-off and leakage prevention after emergency activation.
Key Benefits:- Corrosion Protection: The non-metallic thermo-bonded coating on the 1.5" element isolates the probe from aggressive water chemistry, preventing electromechanical failure.
- Code Compliance: Meets ASME Section IV and ANSI Z21.22 standards, ensuring the installation satisfies HUD/FHA and local mechanical code requirements.
- Durable Construction: Features a high-strength cast bronze body and stainless steel spring for long-term survival in high-heat environments.
- Standard Fitting: The 3/4" Male x 3/4" Female configuration allows for straightforward integration into existing tank tapings and discharge piping.
- Can this valve be used on steam boilers? This specific model is a T&P valve designed for hot water heaters and storage tanks; consult the ASME Section IV rating for specific hydronic heating applications.
- Does the 1.5" element length impact compatibility? Yes, the 1.5" element must be fully immersed in the top 6 inches of the tank to accurately sense temperature spikes.
- What is the relief capacity? This valve is CSA rated at 95,000 BTU/hr, meaning the water heater's input must not exceed this value for safe operation.
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: $50.75
-65%$50.75
$17.76Conbraco 18C-402-27 Valve
The Conbraco 18C-402-27 is a professional-grade Temperature and Pressure Relief Valve (T&P valve) specifically engineered for the protection of high-capacity water heaters and storage tanks. This safety-critical component features a 3/4" MNPT inlet and a 3/4" FNPT outlet, built with a heavy-duty ASTM B584 bronze body to handle the rigors of commercial and industrial hydronic systems. With a fixed pressure setting of 125 PSI and a maximum temperature rating of 210°F, it ensures consistent system safety by discharging excess pressure or thermal expansion before residential or commercial vessels reach critical limits.
Designed for reliability in the field, this valve utilizes a 1.5-inch element coated with a unique non-metallic material to prevent galvanic corrosion and mineral buildup, which are common failure points in hard water applications. The 95,000 BTU/hr CSA rating makes it a standard choice for contractors performing maintenance or new installations on code-compliant domestic hot water systems. This ASME Section IV rated valve also incorporates a stainless steel spring and a silicone seat for positive shut-off and leakage prevention after emergency activation.
Key Benefits:- Corrosion Protection: The non-metallic thermo-bonded coating on the 1.5" element isolates the probe from aggressive water chemistry, preventing electromechanical failure.
- Code Compliance: Meets ASME Section IV and ANSI Z21.22 standards, ensuring the installation satisfies HUD/FHA and local mechanical code requirements.
- Durable Construction: Features a high-strength cast bronze body and stainless steel spring for long-term survival in high-heat environments.
- Standard Fitting: The 3/4" Male x 3/4" Female configuration allows for straightforward integration into existing tank tapings and discharge piping.
- Can this valve be used on steam boilers? This specific model is a T&P valve designed for hot water heaters and storage tanks; consult the ASME Section IV rating for specific hydronic heating applications.
- Does the 1.5" element length impact compatibility? Yes, the 1.5" element must be fully immersed in the top 6 inches of the tank to accurately sense temperature spikes.
- What is the relief capacity? This valve is CSA rated at 95,000 BTU/hr, meaning the water heater's input must not exceed this value for safe operation.
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 Conbraco 18C-402-27 is a professional-grade Temperature and Pressure Relief Valve (T&P valve) specifically engineered for the protection of high-capacity water heaters and storage tanks. This safety-critical component features a 3/4" MNPT inlet and a 3/4" FNPT outlet, built with a heavy-duty ASTM B584 bronze body to handle the rigors of commercial and industrial hydronic systems. With a fixed pressure setting of 125 PSI and a maximum temperature rating of 210°F, it ensures consistent system safety by discharging excess pressure or thermal expansion before residential or commercial vessels reach critical limits.
Designed for reliability in the field, this valve utilizes a 1.5-inch element coated with a unique non-metallic material to prevent galvanic corrosion and mineral buildup, which are common failure points in hard water applications. The 95,000 BTU/hr CSA rating makes it a standard choice for contractors performing maintenance or new installations on code-compliant domestic hot water systems. This ASME Section IV rated valve also incorporates a stainless steel spring and a silicone seat for positive shut-off and leakage prevention after emergency activation.
Key Benefits:- Corrosion Protection: The non-metallic thermo-bonded coating on the 1.5" element isolates the probe from aggressive water chemistry, preventing electromechanical failure.
- Code Compliance: Meets ASME Section IV and ANSI Z21.22 standards, ensuring the installation satisfies HUD/FHA and local mechanical code requirements.
- Durable Construction: Features a high-strength cast bronze body and stainless steel spring for long-term survival in high-heat environments.
- Standard Fitting: The 3/4" Male x 3/4" Female configuration allows for straightforward integration into existing tank tapings and discharge piping.
- Can this valve be used on steam boilers? This specific model is a T&P valve designed for hot water heaters and storage tanks; consult the ASME Section IV rating for specific hydronic heating applications.
- Does the 1.5" element length impact compatibility? Yes, the 1.5" element must be fully immersed in the top 6 inches of the tank to accurately sense temperature spikes.
- What is the relief capacity? This valve is CSA rated at 95,000 BTU/hr, meaning the water heater's input must not exceed this value for safe operation.
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.












