Check Valves
Check valves are mechanical devices designed to allow fluid—whether liquid or gas—to flow in only one direction, preventing backflow that can damage equipment or disrupt system performance. Commonly used in industrial, plumbing, and MRO (maintenance, repair, and operations) systems, they automatically open with forward flow and close when flow reverses. Available in various types like swing, ball, and inline designs, check valves are essential for ensuring system integrity, protecting pumps and compressors, and maintaining operational safety.
Types of Check Valves We Offer:
- Swing Check Valves – Ideal for irrigation and low-pressure systems
- Ball Check Valves – Reliable for wastewater and slurry applications
- Piston Check Valves – Designed for precise flow control in hydraulic systems
Centro partners with leading manufacturers to provide top-quality materials and engineering in every check valve we supply. Browse our extensive selection and find the perfect check valve for your needs. Order online today or contact our experts for assistance!
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The Apollo 4ANLF60CBPC is a Type 1 Double Check Detector Assembly. This product serves professionals across industrial processing, marine, and HVAC sectors. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. It is designed to comply with applicable NSF and UL requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF60EBPC is a Type 1 Double Check Detector Assembly. This product serves professionals across HVAC, plumbing, and commercial mechanical systems sectors. The 4ANLF60EBPC reflects Apollo's long-standing reputation for quality and innovation. This product meets relevant ASME and UL standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF60GBPE is a Type 1 Double Check Detector Assembly. This product serves professionals across HVAC, oil and gas, and commercial mechanical systems 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
Part number 4ANLF60HBPE from Apollo is a Type 1 Double Check Detector Assembly. This product serves professionals across plumbing, fire protection, and industrial processing sectors. Apollo products are trusted by engineers and specifiers worldwide. It is designed to comply with applicable ASME and UL requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF600BPE is a Type 1 Double Check Detector Assembly. This product serves professionals across commercial mechanical systems, oil and gas, and fire protection sectors. Backed by Apollo's commitment to quality, the 4ANLF600BPE is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF60ABPE is a Type 1 Double Check Detector Assembly. It is commonly found in HVAC, plumbing, and industrial processing applications. Apollo products are trusted by engineers and specifiers worldwide. This product meets relevant ASME and UL standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The 4ANLF60CBPE from Apollo is a Type 1 Double Check Detector Assembly. Typical applications span industrial processing, plumbing, and marine 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 Valves 4ANLF60EBPE is a Type 1 Double Check Detector Assembly. It is commonly found in HVAC, fire protection, and oil and gas applications. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. It is designed to comply with applicable UL and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF60GBPG from Apollo is a Type 1 Double Check Detector Assembly. Typical applications span HVAC, industrial processing, and marine environments. Apollo products are trusted by engineers and specifiers worldwide.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF60HBPG from Apollo is a Type 1 Double Check Detector Assembly. Typical applications span fire protection, HVAC, and plumbing environments. The 4ANLF60HBPG reflects Apollo's long-standing reputation for quality and innovation. It is designed to comply with applicable UL and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF600BPG is a Type 1 Double Check Detector Assembly. It is commonly found in fire protection, HVAC, and plumbing applications. Apollo Valves is recognized globally for engineering products that meet strict performance standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF60ABPG is a Type 1 Double Check Detector Assembly. This product serves professionals across marine, industrial processing, and HVAC sectors. The 4ANLF60ABPG reflects Apollo's long-standing reputation for quality and innovation. This product meets relevant FM and ASME standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The 4ANLF60CBPG from Apollo is a Type 1 Double Check Detector Assembly. This product serves professionals across oil and gas, industrial processing, and marine sectors. 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
Part number 4ANLF60EBPG from Apollo is a Type 1 Double Check Detector Assembly. It is commonly found in fire protection, industrial processing, and commercial mechanical systems applications. 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 4ANLF60AC9 is a Type 1 Double Check Detector Assembly. Butterfly Shut-Off Valves, 4" (2 x Groove). It is commonly found in oil and gas, commercial mechanical systems, and fire protection applications. Backed by Apollo's commitment to quality, the 4ANLF60AC9 is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF60CC9 is a Type 1 Double Check Detector Assembly. Butterfly Shut-Off Valves, 6" (2 x Groove). Typical applications span commercial mechanical systems, industrial processing, and fire protection environments. The 4ANLF60CC9 reflects Apollo's long-standing reputation for quality and innovation.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF60EC9 from Apollo is a Type 1 Double Check Detector Assembly. Butterfly Shut-Off Valves, 8" (2 x Groove). It is commonly found in plumbing, HVAC, and commercial mechanical systems applications. Backed by Apollo's commitment to quality, the 4ANLF60EC9 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
Engineered by Apollo, the 4ANLF609C3 is a Type 1 Double Check Detector Assembly. Typical applications span plumbing, oil and gas, and industrial processing environments. Apollo Valves is recognized globally for engineering products that meet strict performance standards. This product meets relevant ASME and UL standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF60AC3 is a Type 1 Double Check Detector Assembly. Typical applications span oil and gas, marine, and plumbing environments. The 4ANLF60AC3 reflects Apollo's long-standing reputation for quality and innovation. It is designed to comply with applicable UL and NSF requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF60AC8 is a Type 1 Double Check Detector Assembly. This product serves professionals across fire protection, industrial processing, and HVAC sectors. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. This product meets relevant ASME and UL standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF60AC7 is a Type 1 Double Check Detector Assembly. Typical applications span fire protection, marine, and commercial mechanical systems 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 4ANLF60CC3 from Apollo is a Type 1 Double Check Detector Assembly. It is commonly found in fire protection, oil and gas, and plumbing applications. Backed by Apollo's commitment to quality, the 4ANLF60CC3 is built to perform under real-world conditions. It is designed to comply with applicable ASME and UL requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF60CC8 is a Type 1 Double Check Detector Assembly. This product serves professionals across HVAC, fire protection, and industrial processing sectors. Apollo products are trusted by engineers and specifiers worldwide. It is designed to comply with applicable NSF and UL requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The 4ANLF60CC7 from Apollo is a Type 1 Double Check Detector Assembly. This product serves professionals across fire protection, oil and gas, and plumbing 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 UL requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF60CBPC is a Type 1 Double Check Detector Assembly. This product serves professionals across industrial processing, marine, and HVAC sectors. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. It is designed to comply with applicable NSF and UL requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF60EBPC is a Type 1 Double Check Detector Assembly. This product serves professionals across HVAC, plumbing, and commercial mechanical systems sectors. The 4ANLF60EBPC reflects Apollo's long-standing reputation for quality and innovation. This product meets relevant ASME and UL standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF60GBPE is a Type 1 Double Check Detector Assembly. This product serves professionals across HVAC, oil and gas, and commercial mechanical systems 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
Part number 4ANLF60HBPE from Apollo is a Type 1 Double Check Detector Assembly. This product serves professionals across plumbing, fire protection, and industrial processing sectors. Apollo products are trusted by engineers and specifiers worldwide. It is designed to comply with applicable ASME and UL requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF600BPE is a Type 1 Double Check Detector Assembly. This product serves professionals across commercial mechanical systems, oil and gas, and fire protection sectors. Backed by Apollo's commitment to quality, the 4ANLF600BPE is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF60ABPE is a Type 1 Double Check Detector Assembly. It is commonly found in HVAC, plumbing, and industrial processing applications. Apollo products are trusted by engineers and specifiers worldwide. This product meets relevant ASME and UL standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The 4ANLF60CBPE from Apollo is a Type 1 Double Check Detector Assembly. Typical applications span industrial processing, plumbing, and marine 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 Valves 4ANLF60EBPE is a Type 1 Double Check Detector Assembly. It is commonly found in HVAC, fire protection, and oil and gas applications. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. It is designed to comply with applicable UL and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF60GBPG from Apollo is a Type 1 Double Check Detector Assembly. Typical applications span HVAC, industrial processing, and marine environments. Apollo products are trusted by engineers and specifiers worldwide.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF60HBPG from Apollo is a Type 1 Double Check Detector Assembly. Typical applications span fire protection, HVAC, and plumbing environments. The 4ANLF60HBPG reflects Apollo's long-standing reputation for quality and innovation. It is designed to comply with applicable UL and FM requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo Valves 4ANLF600BPG is a Type 1 Double Check Detector Assembly. It is commonly found in fire protection, HVAC, and plumbing applications. Apollo Valves is recognized globally for engineering products that meet strict performance standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF60ABPG is a Type 1 Double Check Detector Assembly. This product serves professionals across marine, industrial processing, and HVAC sectors. The 4ANLF60ABPG reflects Apollo's long-standing reputation for quality and innovation. This product meets relevant FM and ASME standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The 4ANLF60CBPG from Apollo is a Type 1 Double Check Detector Assembly. This product serves professionals across oil and gas, industrial processing, and marine sectors. 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
Part number 4ANLF60EBPG from Apollo is a Type 1 Double Check Detector Assembly. It is commonly found in fire protection, industrial processing, and commercial mechanical systems applications. 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 4ANLF60AC9 is a Type 1 Double Check Detector Assembly. Butterfly Shut-Off Valves, 4" (2 x Groove). It is commonly found in oil and gas, commercial mechanical systems, and fire protection applications. Backed by Apollo's commitment to quality, the 4ANLF60AC9 is built to perform under real-world conditions.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF60CC9 is a Type 1 Double Check Detector Assembly. Butterfly Shut-Off Valves, 6" (2 x Groove). Typical applications span commercial mechanical systems, industrial processing, and fire protection environments. The 4ANLF60CC9 reflects Apollo's long-standing reputation for quality and innovation.
Requires Quote
Available for Purchase
Subject to factory lead times
Part number 4ANLF60EC9 from Apollo is a Type 1 Double Check Detector Assembly. Butterfly Shut-Off Valves, 8" (2 x Groove). It is commonly found in plumbing, HVAC, and commercial mechanical systems applications. Backed by Apollo's commitment to quality, the 4ANLF60EC9 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
Engineered by Apollo, the 4ANLF609C3 is a Type 1 Double Check Detector Assembly. Typical applications span plumbing, oil and gas, and industrial processing environments. Apollo Valves is recognized globally for engineering products that meet strict performance standards. This product meets relevant ASME and UL standards.
Requires Quote
Available for Purchase
Subject to factory lead times
Engineered by Apollo, the 4ANLF60AC3 is a Type 1 Double Check Detector Assembly. Typical applications span oil and gas, marine, and plumbing environments. The 4ANLF60AC3 reflects Apollo's long-standing reputation for quality and innovation. It is designed to comply with applicable UL and NSF requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF60AC8 is a Type 1 Double Check Detector Assembly. This product serves professionals across fire protection, industrial processing, and HVAC sectors. As a leader in valves and flow control, Apollo manufactures every component to exacting standards. This product meets relevant ASME and UL standards.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF60AC7 is a Type 1 Double Check Detector Assembly. Typical applications span fire protection, marine, and commercial mechanical systems 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 4ANLF60CC3 from Apollo is a Type 1 Double Check Detector Assembly. It is commonly found in fire protection, oil and gas, and plumbing applications. Backed by Apollo's commitment to quality, the 4ANLF60CC3 is built to perform under real-world conditions. It is designed to comply with applicable ASME and UL requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The Apollo 4ANLF60CC8 is a Type 1 Double Check Detector Assembly. This product serves professionals across HVAC, fire protection, and industrial processing sectors. Apollo products are trusted by engineers and specifiers worldwide. It is designed to comply with applicable NSF and UL requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
The 4ANLF60CC7 from Apollo is a Type 1 Double Check Detector Assembly. This product serves professionals across fire protection, oil and gas, and plumbing 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 UL requirements.
Requires Quote
Available for Purchase
Subject to factory lead times
FAQS
- A check valve is a one way valve that allows fluid to flow in one direction only and automatically prevents backflow in a piping system.
- A check valve opens when fluid flows in the correct direction and closes when flow stops or reverses. The closing mechanism may use a disc, ball, flap, or spring depending on the valve design.
- Check valves are used to protect pumps, compressors, piping, and equipment from damage caused by reverse flow. They are commonly installed on pump discharge lines.
- Swing check valves rely on gravity and flow to open and close, while spring loaded check valves use a spring to close quickly and reduce water hammer.
- Check valves are made from materials such as cast iron, ductile iron, stainless steel, brass, bronze, PVC, CPVC, and other plastics depending on application needs.