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
Filter
Filter
295 items
content loaded
The 4ANLF729C8 from Apollo is an RP Detector Assembly 2nd Check. It is commonly found in fire protection, marine, and plumbing applications. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. It is designed to comply with applicable NSF and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF729E8 is an RP Detector Assembly 2nd Check. It is commonly found in plumbing, HVAC, and fire protection applications. 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
The 4ANLF729G8 from Apollo is an RP Detector Assembly 2nd Check. It is commonly found in plumbing, industrial processing, and fire protection applications. Backed by Apollo's commitment to quality, the 4ANLF729G8 is built to perform under real-world conditions. It is designed to comply with applicable ASME and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF729G4 is an RP Detector Assembly 2nd Check. This product serves professionals across oil and gas, commercial mechanical systems, and industrial processing sectors. Backed by Apollo's commitment to quality, the 4ANLF729G4 is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF729E4 from Apollo is an RP Detector Assembly 2nd Check. Typical applications span commercial mechanical systems, fire protection, and marine environments. Apollo Valves is recognized globally for engineering products that meet strict performance standards. This product meets relevant NSF and FM standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF729C4 is an RP Detector Assembly 2nd Check. This product serves professionals across commercial mechanical systems, marine, and oil and gas sectors. The 4ANLF729C4 reflects Apollo's long-standing reputation for quality and innovation.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4AN729G6 is an RP Detector Assembly 2nd Check. This product serves professionals across plumbing, oil and gas, and fire protection sectors. The 4AN729G6 reflects Apollo's long-standing reputation for quality and innovation.
Requires Quote
Available for Purchase
Subject to factory lead times
The 4AN729E6 from Apollo is an RP Detector Assembly 2nd Check. It is commonly found in plumbing, oil and gas, and fire protection applications. The 4AN729E6 reflects Apollo's long-standing reputation for quality and innovation. It is designed to comply with applicable NSF and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4AN729C6 is an RP Detector Assembly 2nd Check. It is commonly found in fire protection, oil and gas, and plumbing applications. Apollo products are trusted by engineers and specifiers worldwide.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4AN729C10 is an RP Detector Assembly 2nd Check. Typical applications span HVAC, oil and gas, and marine environments. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. It is designed to comply with applicable ASME and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4AN729E10 is an RP Detector Assembly 2nd Check. Typical applications span HVAC, oil and gas, and industrial processing environments. Backed by Apollo's commitment to quality, the 4AN729E10 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
The 4AN729G10 from Apollo is an RP Detector Assembly 2nd Check. This product serves professionals across oil and gas, industrial processing, and marine sectors. Apollo Valves is recognized globally for engineering products that meet strict performance standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF720C9 is an RP Detector Assembly 2nd Check. Typical applications span plumbing, oil and gas, and fire protection environments. The 4ANLF720C9 reflects Apollo's long-standing reputation for quality and innovation.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF720E9 is an RP Detector Assembly 2nd Check. It is commonly found in oil and gas, commercial mechanical systems, and fire protection applications. The 4ANLF720E9 reflects Apollo's long-standing reputation for quality and innovation.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF720G9 from Apollo is an RP Detector Assembly 2nd Check. It is commonly found in plumbing, industrial processing, and fire protection applications. Apollo Valves is recognized globally for engineering products that meet strict performance standards. This product meets relevant ASME and NSF standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF720C3 is an RP Detector Assembly 2nd Check. This product serves professionals across plumbing, oil and gas, and marine 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
Engineered by Apollo, the 4ANLF720E3 is an RP Detector Assembly 2nd Check. Typical applications span oil and gas, marine, and plumbing environments. Backed by Apollo's commitment to quality, the 4ANLF720E3 is built to perform under real-world conditions. It is designed to comply with applicable NSF and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF720G3 is an RP Detector Assembly 2nd Check. This product serves professionals across fire protection, HVAC, and oil and gas sectors. Backed by Apollo's commitment to quality, the 4ANLF720G3 is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF720C7 from Apollo is an RP Detector Assembly 2nd Check. This product serves professionals across plumbing, HVAC, and fire protection sectors. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. This product meets relevant UL and NSF standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF720E7 is an RP Detector Assembly 2nd Check. Typical applications span fire protection, marine, 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 4ANLF720G7 is an RP Detector Assembly 2nd Check. It is commonly found in oil and gas, HVAC, and plumbing 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
Part number 4ANLF720C8 from Apollo is an RP Detector Assembly 2nd Check. Typical applications span fire protection, commercial mechanical systems, and HVAC environments. Apollo Valves is recognized globally for engineering products that meet strict performance standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF720E8 is an RP Detector Assembly 2nd Check. This product serves professionals across fire protection, industrial processing, and HVAC sectors. Backed by Apollo's commitment to quality, the 4ANLF720E8 is built to perform under real-world conditions. This product meets relevant FM and ASME standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF720C4 is an RP Detector Assembly 2nd Check. It is commonly found in HVAC, plumbing, and commercial mechanical systems applications. Backed by Apollo's commitment to quality, the 4ANLF720C4 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 4ANLF729C8 from Apollo is an RP Detector Assembly 2nd Check. It is commonly found in fire protection, marine, and plumbing applications. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. It is designed to comply with applicable NSF and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF729E8 is an RP Detector Assembly 2nd Check. It is commonly found in plumbing, HVAC, and fire protection applications. 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
The 4ANLF729G8 from Apollo is an RP Detector Assembly 2nd Check. It is commonly found in plumbing, industrial processing, and fire protection applications. Backed by Apollo's commitment to quality, the 4ANLF729G8 is built to perform under real-world conditions. It is designed to comply with applicable ASME and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF729G4 is an RP Detector Assembly 2nd Check. This product serves professionals across oil and gas, commercial mechanical systems, and industrial processing sectors. Backed by Apollo's commitment to quality, the 4ANLF729G4 is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF729E4 from Apollo is an RP Detector Assembly 2nd Check. Typical applications span commercial mechanical systems, fire protection, and marine environments. Apollo Valves is recognized globally for engineering products that meet strict performance standards. This product meets relevant NSF and FM standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF729C4 is an RP Detector Assembly 2nd Check. This product serves professionals across commercial mechanical systems, marine, and oil and gas sectors. The 4ANLF729C4 reflects Apollo's long-standing reputation for quality and innovation.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4AN729G6 is an RP Detector Assembly 2nd Check. This product serves professionals across plumbing, oil and gas, and fire protection sectors. The 4AN729G6 reflects Apollo's long-standing reputation for quality and innovation.
Requires Quote
Available for Purchase
Subject to factory lead times
The 4AN729E6 from Apollo is an RP Detector Assembly 2nd Check. It is commonly found in plumbing, oil and gas, and fire protection applications. The 4AN729E6 reflects Apollo's long-standing reputation for quality and innovation. It is designed to comply with applicable NSF and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4AN729C6 is an RP Detector Assembly 2nd Check. It is commonly found in fire protection, oil and gas, and plumbing applications. Apollo products are trusted by engineers and specifiers worldwide.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4AN729C10 is an RP Detector Assembly 2nd Check. Typical applications span HVAC, oil and gas, and marine environments. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. It is designed to comply with applicable ASME and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4AN729E10 is an RP Detector Assembly 2nd Check. Typical applications span HVAC, oil and gas, and industrial processing environments. Backed by Apollo's commitment to quality, the 4AN729E10 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
The 4AN729G10 from Apollo is an RP Detector Assembly 2nd Check. This product serves professionals across oil and gas, industrial processing, and marine sectors. Apollo Valves is recognized globally for engineering products that meet strict performance standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF720C9 is an RP Detector Assembly 2nd Check. Typical applications span plumbing, oil and gas, and fire protection environments. The 4ANLF720C9 reflects Apollo's long-standing reputation for quality and innovation.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF720E9 is an RP Detector Assembly 2nd Check. It is commonly found in oil and gas, commercial mechanical systems, and fire protection applications. The 4ANLF720E9 reflects Apollo's long-standing reputation for quality and innovation.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF720G9 from Apollo is an RP Detector Assembly 2nd Check. It is commonly found in plumbing, industrial processing, and fire protection applications. Apollo Valves is recognized globally for engineering products that meet strict performance standards. This product meets relevant ASME and NSF standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF720C3 is an RP Detector Assembly 2nd Check. This product serves professionals across plumbing, oil and gas, and marine 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
Engineered by Apollo, the 4ANLF720E3 is an RP Detector Assembly 2nd Check. Typical applications span oil and gas, marine, and plumbing environments. Backed by Apollo's commitment to quality, the 4ANLF720E3 is built to perform under real-world conditions. It is designed to comply with applicable NSF and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF720G3 is an RP Detector Assembly 2nd Check. This product serves professionals across fire protection, HVAC, and oil and gas sectors. Backed by Apollo's commitment to quality, the 4ANLF720G3 is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF720C7 from Apollo is an RP Detector Assembly 2nd Check. This product serves professionals across plumbing, HVAC, and fire protection sectors. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. This product meets relevant UL and NSF standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF720E7 is an RP Detector Assembly 2nd Check. Typical applications span fire protection, marine, 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 4ANLF720G7 is an RP Detector Assembly 2nd Check. It is commonly found in oil and gas, HVAC, and plumbing 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
Part number 4ANLF720C8 from Apollo is an RP Detector Assembly 2nd Check. Typical applications span fire protection, commercial mechanical systems, and HVAC environments. Apollo Valves is recognized globally for engineering products that meet strict performance standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF720E8 is an RP Detector Assembly 2nd Check. This product serves professionals across fire protection, industrial processing, and HVAC sectors. Backed by Apollo's commitment to quality, the 4ANLF720E8 is built to perform under real-world conditions. This product meets relevant FM and ASME standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF720C4 is an RP Detector Assembly 2nd Check. It is commonly found in HVAC, plumbing, and commercial mechanical systems applications. Backed by Apollo's commitment to quality, the 4ANLF720C4 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