Backflow Prevention
Backflow prevention devices keep contaminated water from flowing back into potable water supplies. They're required by code wherever cross-connections exist, such as boiler feeds, irrigation, fire systems and process water.
Backflow Device Types
- Reduced pressure zone (RPZ) assemblies – high-hazard protection
- Double check valve assemblies – low-hazard protection
- Pressure vacuum breakers – irrigation
- Atmospheric vacuum breakers – simple point-of-use
- Repair kits and test kits – maintenance and annual testing
Choosing a Device
The hazard level and local code determine the device. Size for flow and pressure loss, and plan for annual testing access.
Centro supplies backflow prevention devices and repair kits.
Related categories: Process Equipment | Industrial Desiccant Dehumidifiers | Heat Exchanger Applications | Thermal Fluid Heater Systems | Pumps
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The 4ANLF70CE8 from Apollo is an RP Detector Assembly. It is commonly found in plumbing, oil and gas, and fire protection applications. Backed by Apollo's commitment to quality, the 4ANLF70CE8 is built to perform under real-world conditions. It is designed to comply with applicable UL and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF70CG8 is an RP Detector Assembly. This product serves professionals across plumbing, commercial mechanical systems, and fire protection sectors. Backed by Apollo's commitment to quality, the 4ANLF70CG8 is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF70CC4 is an RP Detector Assembly. Typical applications span fire protection, oil and gas, and plumbing environments. Backed by Apollo's commitment to quality, the 4ANLF70CC4 is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
The 4ANLF70CE4 from Apollo is an RP Detector Assembly. This product serves professionals across plumbing, fire protection, and oil and gas sectors. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. It is designed to comply with applicable ASME and NSF requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF70CG4 from Apollo is an RP Detector Assembly. It is commonly found in plumbing, fire protection, and industrial processing applications. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. It is designed to comply with applicable ASME and UL requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF70CC6 is an RP Detector Assembly. This product serves professionals across commercial mechanical systems, HVAC, and fire protection sectors. Apollo products are trusted by engineers and specifiers worldwide.
Requires Quote
Available for Purchase
Subject to factory lead times
The 4ANLF70CE6 from Apollo is an RP Detector Assembly. It is commonly found in plumbing, industrial processing, and commercial mechanical systems applications. Apollo products are trusted by engineers and specifiers worldwide. It is designed to comply with applicable NSF and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF70CG6 is an RP Detector Assembly. It is commonly found in fire protection, HVAC, and commercial mechanical systems applications. The 4ANLF70CG6 reflects Apollo's long-standing reputation for quality and innovation.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70CC10 is an RP Detector Assembly. Typical applications span HVAC, plumbing, and industrial processing environments. Backed by Apollo's commitment to quality, the 4ANLF70CC10 is built to perform under real-world conditions. This product meets relevant ASME and UL standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF70CE10 is an RP Detector Assembly. Typical applications span HVAC, plumbing, and oil and gas environments. Apollo Valves is recognized globally for engineering products that meet strict performance standards. It is designed to comply with applicable ASME and UL requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70CG10 is an RP Detector Assembly. It is commonly found in commercial mechanical systems, industrial processing, and oil and gas applications. Apollo products are trusted by engineers and specifiers worldwide. It is designed to comply with applicable ASME and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF70EC9 is an RP Detector Assembly. It is commonly found in HVAC, industrial processing, and oil and gas applications. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. This product meets relevant NSF and FM standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70EE9 is an RP Detector Assembly. This product serves professionals across HVAC, oil and gas, and commercial mechanical systems sectors. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. This product meets relevant NSF and UL standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70EG9 is an RP Detector Assembly. Typical applications span marine, industrial processing, and HVAC environments. Backed by Apollo's commitment to quality, the 4ANLF70EG9 is built to perform under real-world conditions. It is designed to comply with applicable UL and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF70EC3 from Apollo is an RP Detector Assembly. Typical applications span HVAC, commercial mechanical systems, and marine environments. Backed by Apollo's commitment to quality, the 4ANLF70EC3 is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF70EE3 is an RP Detector Assembly. This product serves professionals across HVAC, industrial processing, and marine sectors. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. This product meets relevant ASME and NSF standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF70EG3 from Apollo is an RP Detector Assembly. Typical applications span HVAC, fire protection, and commercial mechanical systems environments. As a leader in valves and flow control, Apollo manufactures every component to exacting standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70EC7 is an RP Detector Assembly. It is commonly found in commercial mechanical systems, plumbing, and HVAC applications. Apollo Valves is recognized globally for engineering products that meet strict performance standards. It is designed to comply with applicable UL and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF73EE7 is an RP Detector Assembly. Typical applications span oil and gas, marine, and plumbing environments. Apollo Valves is recognized globally for engineering products that meet strict performance standards. It is designed to comply with applicable NSF and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70EE7 is an RP Detector Assembly. It is commonly found in industrial processing, plumbing, and HVAC applications. Backed by Apollo's commitment to quality, the 4ANLF70EE7 is built to perform under real-world conditions. This product meets relevant UL and FM standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF70EG7 from Apollo is an RP Detector Assembly. This product serves professionals across fire protection, industrial processing, and HVAC sectors. Backed by Apollo's commitment to quality, the 4ANLF70EG7 is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF70EC8 is an RP Detector Assembly. This product serves professionals across oil and gas, HVAC, and fire protection sectors. The 4ANLF70EC8 reflects Apollo's long-standing reputation for quality and innovation.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70EE8 is an RP Detector Assembly. Typical applications span plumbing, industrial processing, and oil and gas environments. The 4ANLF70EE8 reflects Apollo's long-standing reputation for quality and innovation. It is designed to comply with applicable ASME and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70EG8 is an RP Detector Assembly. This product serves professionals across plumbing, commercial mechanical systems, and oil and gas sectors. Apollo Valves is recognized globally for engineering products that meet strict performance standards. This product meets relevant NSF and UL standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The 4ANLF70CE8 from Apollo is an RP Detector Assembly. It is commonly found in plumbing, oil and gas, and fire protection applications. Backed by Apollo's commitment to quality, the 4ANLF70CE8 is built to perform under real-world conditions. It is designed to comply with applicable UL and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF70CG8 is an RP Detector Assembly. This product serves professionals across plumbing, commercial mechanical systems, and fire protection sectors. Backed by Apollo's commitment to quality, the 4ANLF70CG8 is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF70CC4 is an RP Detector Assembly. Typical applications span fire protection, oil and gas, and plumbing environments. Backed by Apollo's commitment to quality, the 4ANLF70CC4 is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
The 4ANLF70CE4 from Apollo is an RP Detector Assembly. This product serves professionals across plumbing, fire protection, and oil and gas sectors. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. It is designed to comply with applicable ASME and NSF requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF70CG4 from Apollo is an RP Detector Assembly. It is commonly found in plumbing, fire protection, and industrial processing applications. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. It is designed to comply with applicable ASME and UL requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF70CC6 is an RP Detector Assembly. This product serves professionals across commercial mechanical systems, HVAC, and fire protection sectors. Apollo products are trusted by engineers and specifiers worldwide.
Requires Quote
Available for Purchase
Subject to factory lead times
The 4ANLF70CE6 from Apollo is an RP Detector Assembly. It is commonly found in plumbing, industrial processing, and commercial mechanical systems applications. Apollo products are trusted by engineers and specifiers worldwide. It is designed to comply with applicable NSF and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF70CG6 is an RP Detector Assembly. It is commonly found in fire protection, HVAC, and commercial mechanical systems applications. The 4ANLF70CG6 reflects Apollo's long-standing reputation for quality and innovation.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70CC10 is an RP Detector Assembly. Typical applications span HVAC, plumbing, and industrial processing environments. Backed by Apollo's commitment to quality, the 4ANLF70CC10 is built to perform under real-world conditions. This product meets relevant ASME and UL standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF70CE10 is an RP Detector Assembly. Typical applications span HVAC, plumbing, and oil and gas environments. Apollo Valves is recognized globally for engineering products that meet strict performance standards. It is designed to comply with applicable ASME and UL requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70CG10 is an RP Detector Assembly. It is commonly found in commercial mechanical systems, industrial processing, and oil and gas applications. Apollo products are trusted by engineers and specifiers worldwide. It is designed to comply with applicable ASME and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF70EC9 is an RP Detector Assembly. It is commonly found in HVAC, industrial processing, and oil and gas applications. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. This product meets relevant NSF and FM standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70EE9 is an RP Detector Assembly. This product serves professionals across HVAC, oil and gas, and commercial mechanical systems sectors. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. This product meets relevant NSF and UL standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70EG9 is an RP Detector Assembly. Typical applications span marine, industrial processing, and HVAC environments. Backed by Apollo's commitment to quality, the 4ANLF70EG9 is built to perform under real-world conditions. It is designed to comply with applicable UL and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF70EC3 from Apollo is an RP Detector Assembly. Typical applications span HVAC, commercial mechanical systems, and marine environments. Backed by Apollo's commitment to quality, the 4ANLF70EC3 is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF70EE3 is an RP Detector Assembly. This product serves professionals across HVAC, industrial processing, and marine sectors. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. This product meets relevant ASME and NSF standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF70EG3 from Apollo is an RP Detector Assembly. Typical applications span HVAC, fire protection, and commercial mechanical systems environments. As a leader in valves and flow control, Apollo manufactures every component to exacting standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70EC7 is an RP Detector Assembly. It is commonly found in commercial mechanical systems, plumbing, and HVAC applications. Apollo Valves is recognized globally for engineering products that meet strict performance standards. It is designed to comply with applicable UL and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF73EE7 is an RP Detector Assembly. Typical applications span oil and gas, marine, and plumbing environments. Apollo Valves is recognized globally for engineering products that meet strict performance standards. It is designed to comply with applicable NSF and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70EE7 is an RP Detector Assembly. It is commonly found in industrial processing, plumbing, and HVAC applications. Backed by Apollo's commitment to quality, the 4ANLF70EE7 is built to perform under real-world conditions. This product meets relevant UL and FM standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF70EG7 from Apollo is an RP Detector Assembly. This product serves professionals across fire protection, industrial processing, and HVAC sectors. Backed by Apollo's commitment to quality, the 4ANLF70EG7 is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF70EC8 is an RP Detector Assembly. This product serves professionals across oil and gas, HVAC, and fire protection sectors. The 4ANLF70EC8 reflects Apollo's long-standing reputation for quality and innovation.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70EE8 is an RP Detector Assembly. Typical applications span plumbing, industrial processing, and oil and gas environments. The 4ANLF70EE8 reflects Apollo's long-standing reputation for quality and innovation. It is designed to comply with applicable ASME and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF70EG8 is an RP Detector Assembly. This product serves professionals across plumbing, commercial mechanical systems, and oil and gas sectors. Apollo Valves is recognized globally for engineering products that meet strict performance standards. This product meets relevant NSF and UL standards.
Requires Quote
Available for Purchase
Subject to factory lead times