
Conbraco 4A-4A4-4AM Valve
The Apollo 4A-4A4-4AM, also known as the Model DCAP4A, is a high-performance dual check valve with atmospheric port designed for reliable containment in commercial and residential water systems. Engineered with a durable forged brass body, this assembly utilizes a 3/4" female pipe thread (FPT) inlet and outlet alongside a 1/2" FPT vent to ensure effective protection against back-siphonage and backpressure. This specific model is a standard-type backflow preventer (Series 4A-400), featuring independently acting check valves with captured springs and reversible silicone seat discs to minimize head loss. With a maximum pressure rating of 175 psi and a temperature range of 33°F to 210°F, it is a technician-favorite for non-potable water applications. Please note that this non-lead free version is intended for use in systems where water is not intended for human consumption. Its low-profile design allows for versatile horizontal installation, making it ideal for tight mechanical rooms and process piping interfaces.
- Enhanced System Safety: The intermediate atmospheric vent provides a physical air gap to relief pressure if supply drops below downstream levels.
- Field Serviceable Design: Modular check cartridges are top-accessible, allowing for rapid cleaning or component replacement without removing the valve from the line.
- Industrial Durability: Forged brass construction and stainless steel internal springs offer superior corrosion resistance and long-term mechanical integrity.
- Optimized Flow Performance: Specifically designed for low head loss, ensuring system pressure remains consistent during high-demand cycles.
What is the purpose of the 1/2" FPT vent port?
The atmospheric port serves as a fail-safe. In a backflow condition or if the supply pressure fails, the vent opens to discharge water, preventing contaminated fluid from entering the main supply line. Proper drainage must be installed at this port to manage potential spillage.
Is the 4A-4A4-4AM suitable for potable water?
No, this specific model (4A400 series) is non-lead free and is restricted by the Safe Drinking Water Act for use in non-potable applications only. For drinking water systems, specify the 4ALF series.
Can this valve be installed in a vertical orientation?
Standard DCAP models are designed for horizontal installation to ensure the atmospheric vent functions correctly. Always verify local plumbing codes and manufacturer orientation arrows before final piping.
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.
Conbraco 4A-4A4-4AM Valve
The Apollo 4A-4A4-4AM, also known as the Model DCAP4A, is a high-performance dual check valve with atmospheric port designed for reliable containment in commercial and residential water systems. Engineered with a durable forged brass body, this assembly utilizes a 3/4" female pipe thread (FPT) inlet and outlet alongside a 1/2" FPT vent to ensure effective protection against back-siphonage and backpressure. This specific model is a standard-type backflow preventer (Series 4A-400), featuring independently acting check valves with captured springs and reversible silicone seat discs to minimize head loss. With a maximum pressure rating of 175 psi and a temperature range of 33°F to 210°F, it is a technician-favorite for non-potable water applications. Please note that this non-lead free version is intended for use in systems where water is not intended for human consumption. Its low-profile design allows for versatile horizontal installation, making it ideal for tight mechanical rooms and process piping interfaces.
- Enhanced System Safety: The intermediate atmospheric vent provides a physical air gap to relief pressure if supply drops below downstream levels.
- Field Serviceable Design: Modular check cartridges are top-accessible, allowing for rapid cleaning or component replacement without removing the valve from the line.
- Industrial Durability: Forged brass construction and stainless steel internal springs offer superior corrosion resistance and long-term mechanical integrity.
- Optimized Flow Performance: Specifically designed for low head loss, ensuring system pressure remains consistent during high-demand cycles.
What is the purpose of the 1/2" FPT vent port?
The atmospheric port serves as a fail-safe. In a backflow condition or if the supply pressure fails, the vent opens to discharge water, preventing contaminated fluid from entering the main supply line. Proper drainage must be installed at this port to manage potential spillage.
Is the 4A-4A4-4AM suitable for potable water?
No, this specific model (4A400 series) is non-lead free and is restricted by the Safe Drinking Water Act for use in non-potable applications only. For drinking water systems, specify the 4ALF series.
Can this valve be installed in a vertical orientation?
Standard DCAP models are designed for horizontal installation to ensure the atmospheric vent functions correctly. Always verify local plumbing codes and manufacturer orientation arrows before final piping.
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 Apollo 4A-4A4-4AM, also known as the Model DCAP4A, is a high-performance dual check valve with atmospheric port designed for reliable containment in commercial and residential water systems. Engineered with a durable forged brass body, this assembly utilizes a 3/4" female pipe thread (FPT) inlet and outlet alongside a 1/2" FPT vent to ensure effective protection against back-siphonage and backpressure. This specific model is a standard-type backflow preventer (Series 4A-400), featuring independently acting check valves with captured springs and reversible silicone seat discs to minimize head loss. With a maximum pressure rating of 175 psi and a temperature range of 33°F to 210°F, it is a technician-favorite for non-potable water applications. Please note that this non-lead free version is intended for use in systems where water is not intended for human consumption. Its low-profile design allows for versatile horizontal installation, making it ideal for tight mechanical rooms and process piping interfaces.
- Enhanced System Safety: The intermediate atmospheric vent provides a physical air gap to relief pressure if supply drops below downstream levels.
- Field Serviceable Design: Modular check cartridges are top-accessible, allowing for rapid cleaning or component replacement without removing the valve from the line.
- Industrial Durability: Forged brass construction and stainless steel internal springs offer superior corrosion resistance and long-term mechanical integrity.
- Optimized Flow Performance: Specifically designed for low head loss, ensuring system pressure remains consistent during high-demand cycles.
What is the purpose of the 1/2" FPT vent port?
The atmospheric port serves as a fail-safe. In a backflow condition or if the supply pressure fails, the vent opens to discharge water, preventing contaminated fluid from entering the main supply line. Proper drainage must be installed at this port to manage potential spillage.
Is the 4A-4A4-4AM suitable for potable water?
No, this specific model (4A400 series) is non-lead free and is restricted by the Safe Drinking Water Act for use in non-potable applications only. For drinking water systems, specify the 4ALF series.
Can this valve be installed in a vertical orientation?
Standard DCAP models are designed for horizontal installation to ensure the atmospheric vent functions correctly. Always verify local plumbing codes and manufacturer orientation arrows before final piping.
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.












