Check Valves
Cleanflow stocks check valves for water, plumbing, wastewater, oil and gas lines, from 3/8 in. to 6 in., in brass, bronze, stainless steel, PVC and cast iron, shipped from Winnipeg across Canada. These valves are essential in plumbing, industrial, and agricultural systems, designed to allow flow in one direction while preventing backflow.
Which Check Valve Do I Need?
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Plumbing check valve for potable water lines: Plumb-Eeze lead-free brass in-line spring check valve, 1/2 in. to 2 in., NSF/ANSI 372, 200 PSI.
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General purpose water, oil and gas: Greenline bronze swing check valve, 3/8 in. to 3 in., 200 PSI. Full bore, so it passes fibre and fine solids.
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Hot, corrosive or high-pressure lines: Greenline 316 stainless spring check valve, up to 1,000 PSI and 302°F, 2 PSI cracking pressure.
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Water hammer on a pump discharge: New-Line non-slam wafer check valve (silent check valve), 2 in. to 6 in., 316 stainless disc, EPDM seat.
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Well, pond or tank suction line: a Plumb-Eeze foot valve with screen, 1/2 in. to 4 in., in 304 stainless or brass (200 PSI) or PVC (150 PSI).
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Sewage and wastewater pumps: Flygt flanged ball check valve, 2 in. to 6 in., full port, 200 PSI, closes at very low pressure.
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Chemical, irrigation and PVC lines: IPEX SXE true union ball check valve, 3/4 in. to 2 in., NSF/ANSI 61-G, or the Colonial PVC swing check valve, 3/4 in. to 3 in.
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Blower and aeration air lines: Flexi-Hinge double disc check valves (threaded Model 502 or wafer Model 518), 1-1/2 in. to 6 in., seatless full port.
How Do I Size a Check Valve?
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Match the pipe, not the pump port. Threaded FPT valves run 3/8 in. to 4 in.; flanged and wafer valves run 2 in. to 6 in. A smaller valve adds velocity and pressure drop.
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Check pressure and temperature. Most valves here are rated 150 to 200 PSI. PVC is 150 PSI at 73°F, brass and 304 stainless to at least 180°F, 316 stainless to 302°F. Steam ratings are lower.
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Check orientation and cracking pressure. Swing check valves close by gravity, so mount them horizontal or with flow upward. Spring and wafer valves work in any position. For low-head pumps, pick a low cracking pressure such as 2 to 3 PSI.
Why Choose Check Valves from Cleanflow?
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Durable Materials: Crafted from premium materials like brass, stainless steel, and PVC for longevity and resistance to corrosion.
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Wide Compatibility: Available in various sizes and configurations to suit different systems and applications.
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Efficient Flow Control: Engineered for smooth and unobstructed flow while minimizing pressure loss.
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Trusted by Professionals: Widely used in plumbing, agriculture, and industrial systems for dependable performance.
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Expert Support: Backed by Cleanflow’s expertise in fluid management solutions.
Explore Best-Selling Check Valves
GreenLine
Greenline hose and fittings include the bronze swing and 316 stainless spring check valves on this page, the general purpose picks for water, oil and gas lines.
Greenline Bronze Swing Check Valves | 3/8" to 3" Female NPT sizes
Greenline Bronze Swing Check Valves, available in sizes ranging from 3/8" to 3" Female NPT. Designed for durability and efficiency, these valves prevent backflow in piping systems, making them ideal for various applications, including water, oil, and gas. Crafted from high-quality bronze, they offer excellent corrosion resistance and long-lasting performance. With a simple yet effective swing mechanism, these check valves provide optimal sealing and ease of installation. Upgrade your plumbing system with our dependable Bronze Swing Check Valves today!
Plumb-Eeze
Plumb-Eeze supplies the lead-free brass, stainless and PVC in-line check valves and foot valves on this page, plus pressure tanks, jet pumps and fittings.
Brass Low Lead Swing Check Valve – Female Pipe Threads
Brass Low Lead Swing Check Valve is designed for effective backflow prevention in potable water, oil, gas, and diesel applications. Featuring female pipe threads for easy installation, this valve ensures reliable one-way flow control while meeting low lead requirements for safety. With a robust construction rated for 200 PSI, it provides durability and performance in demanding environments. Ideal for both residential and industrial use, this swing check valve is an essential component for maintaining system integrity and preventing contamination in fluid management systems.
Flygt
Flygt pumps and flanged ball check valves are built for sewage and wastewater systems.
Flygt Flanged Ball Check Valve
Flygt Flanged Ball Check Valve is expertly designed for sewage and wastewater applications, offering exceptional performance with low friction loss and maintenance-free operation. Available in sizes of 2", 3", 4", and 6", these full port valves ensure maximum flow while minimizing head loss. The self-centering EPDM-coated aluminum ball guarantees positive closure even at low pressures. With a working pressure of 200 PSI across all models and top entry access for easy inspection and cleaning, the Flygt Flanged Ball Check Valve is a reliable choice for efficient fluid management in challenging environments.
Check Valves FAQs
What are check valves used for?
Check valves are used to allow fluid to flow in one direction while preventing backflow, ensuring system efficiency and safety.
Are these valves suitable for outdoor use?
Yes, many check valves on this page are made from corrosion-resistant materials like stainless steel and PVC, making them ideal for outdoor and harsh environments.
Swing, spring or silent check valve: which one?
A swing check valve has a hinged disc, full flow and handles solids, but needs horizontal or upward flow. A spring check valve closes in any position and suits tight spaces. A silent check valve closes before flow reverses, so it stops water hammer on pump discharge lines.
Do I need a check valve on a well pump?
Yes. A foot valve on the suction line keeps the pump primed, and an in-line check valve at the pump stops water draining back to the well and holds pressure tank pressure. See well pumps and pressure tanks.
Ensure optimal flow control and system efficiency with Cleanflow’s high quality check valves, durable, reliable and built to last. Send the pipe size, fluid and pressure to info@cleanflow.ca and we will confirm the right valve.