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PVC Sch 40 Check Valves

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RELIABILT PVC Sch 40 Spring Loaded Check Valve
Multiple Sizes Available

RELIABILT 

PVC Sch 40 Spring Loaded Check Valve

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3.9
86
H2OPRO 1-1/2-in PVC x 1-1/2-in MNPT PVC Sch 40 Check valve

H2OPRO 

1-1/2-in PVC x 1-1/2-in MNPT PVC Sch 40 Check valve

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for pricing and availability

4.7
30
RELIABILT PVC Sch 40 Spring Loaded Check Valve
Multiple Sizes Available

RELIABILT 

PVC Sch 40 Spring Loaded Check Valve

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for pricing and availability

4.8
5

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Related Products

2-in Iron pipe size x 2-in Compression Brass Swing check valve

EZ-FLO   2-in Iron pipe size x 2-in Compression Brass Swing check valve

The EZ-FLO Brass IPS Swing Check Valve keeps fluids from backing up into the water supply preventing the contamination of clean water. This check valve is built with brass for durability and strength. It is lead-free and suitable for potable water applications. Swing check valves can be used in residential and commercial applications, and in other miscellaneous processes involving the use of water pumps. The swing check valve must be installed horizontally.

3/4-in Copper sweat x 3/4-in Copper sweat Brass Swing check valve

EZ-FLO   3/4-in Copper sweat x 3/4-in Copper sweat Brass Swing check valve

EZ-FLO brass swing check valve keeps fluids from backing up into the water supply and prevents backflow from wells and boiler systems. This check valve is lead free and suitable for all potable water supply installations. It is constructed of brass for strength and durability.

3/8-in Push-to-connect x Push-to-connect Polypropylene In-line check valve

John Guest   3/8-in Push-to-connect x Push-to-connect Polypropylene In-line check valve

The John Guest 3/8 in. push-to-connect check valves are manufactured from white polypropylene and equipped with EPDM O-rings utilizing John Guest’s push-fit technology to make easy, reliable, leak-free connections. They have been developed to satisfy the compatibility needs for a wide range of applications and can be used on plastic or soft copper tubing. To make a connection, the tube is simply pushed in by hand; the unique John Guest collet locking system holds the tubing firmly in place. Disconnection is just as easy and requires no special tools.

1-in FNPT x 1-in FNPT Brass Dual check valve

Watts   1-in FNPT x 1-in FNPT Brass Dual check valve

This 1 by 1 inch lead free dual check valve prevents the reverse flow of polluted water from entering into the drinking water supply at the service entrance or at individual outlets. This valve consists of a lead free brass body construction, 1 inch union female NPT inlet by 1 male NPT outlet, two plastic replaceable check valves, and stainless steel springs. It is designed for non-health hazard residential water system containment, continuous pressure applications and is to be installed immediately downstream of the residential water meter, in a vertical or horizontal position. The minimum working pressure is 10 PSI (69 kPa) and maximum working pressure is 175 PSI (12 BAR).

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Watts   1-in FNPT x 1-in FNPT Bronze In-line check valve

This 1 inch two-way universal flow check valve is used in commercial and residential hydronic heating systems to provide positive gravity shutoff when the circulator is not running and prevents the flow of water to radiation units. This valve is easily opened for gravity circulation. It has an iron body, female threaded connections, a combination of angle and horizontal checks, bronze seat, and brass center guide. The maximum pressure is 50 PSI (344.8 kPa).

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Zurn Wilkins   1-in FNPT x FNPT Bronze Dual check valve

The 700XLFP High Capacity Dual Check Valve used in low health hazard, non-potable applications for protection against both backsiphonage and backpressure of polluted water. It is commonly used in residential fire sprinkler applications when deemed acceptable by the jurisdiction of the local authorities. The 700XLFP may be installed vertically or horizontally, and includes a 1" female union inlet x 1" female outlet connection for versatile installation. Features include corrosion-resistant stainless steel springs and cast bronze main valve body, a maximum pressure of 175 psi and a maximum temperature of 180°F.

1-in FNPT x 1-in FNPT Bronze Dual check valve

Zurn Wilkins   1-in FNPT x 1-in FNPT Bronze Dual check valve

The 700XL Dual Check Valve with 1" female union inlet x 1" female outlet is used in low hazard applications on potable water lines to protect against both backsiphonage and backpressure of polluted water. A non-testable device, the 700XL can be installed horizontally or vertically so long as no part of the unit is submerged and will provide protection where a potential health hazard does not exist. The quality stainless steel springs and low-lead bronze body resist against corrosion and the valve is ASSE® Listed and CSA® Certified.

1-1/2-in FIP x 1-1/2-in FIP Brass Swing check valve

ProLine Series   1-1/2-in FIP x 1-1/2-in FIP Brass Swing check valve

The ProLine Series Swing Check Valve offers plumbers an optimal choice to prevent backflow. Built of a solid brass body, this valve contains a swinging gate that opens when water flows out but will shut if the flow is reversed. An arrow is molded onto the side of the valve to ensure proper function when installed. This valve is ideal for both residential and commercial applications.

2-in FIP x 2-in FIP Brass Swing check valve

ProLine Series   2-in FIP x 2-in FIP Brass Swing check valve

The ProLine Series Swing Check Valve offers plumbers an optimal choice to prevent backflow. Built of a solid brass body, this valve contains a swinging gate that opens when water flows out but will shut if the flow is reversed. An arrow is molded onto the side of the valve to ensure proper function when installed. This valve is ideal for both residential and commercial applications.

1/2-in Hose thread Brass Check valve

Moen   1/2-in Hose thread Brass Check valve

This is a replacement check valve stop for Moentrol valves. Moentrol pressure-balancing valves deliver perfect water coverage, force and flow and have temperature memory to prevent hot and cold surges.

1-1/4-in FIP x FIP Brass Swing check valve

ProLine Series   1-1/4-in FIP x FIP Brass Swing check valve

The ProLine Series Swing Check Valve offers plumbers an optimal choice to prevent backflow. Built of a solid brass body, this valve contains a swinging gate that opens when water flows out but will shut if the flow is reversed. An arrow is molded onto the side of the valve to ensure proper function when installed. This valve is ideal for both residential and commercial applications.

1-1/2-in Sweat x Sweat Brass Swing Check Valve

ProLine Series   1-1/2-in Sweat x Sweat Brass Swing Check Valve

The ProLine Series Swing Check Valve offers plumbers an optimal choice to prevent backflow. Built of a solid brass body, this valve contains a swinging gate that opens when water flows out but will shut if the flow is reversed. An arrow is molded onto the side of the valve to ensure proper function when installed. This valve is ideal for both residential and commercial applications.

2-in Sweat x Sweat Brass Swing Check Valve

ProLine Series   2-in Sweat x Sweat Brass Swing Check Valve

The ProLine Series Swing Check Valve offers plumbers an optimal choice to prevent backflow. Built of a solid brass body, this valve contains a swinging gate that opens when water flows out but will shut if the flow is reversed. An arrow is molded onto the side of the valve to ensure proper function when installed. This valve is ideal for both residential and commercial applications.

1-1/4-in Sweat x Sweat Brass Swing check valve

ProLine Series   1-1/4-in Sweat x Sweat Brass Swing check valve

The ProLine Series Swing Check Valve offers plumbers an optimal choice to prevent backflow. Built of a solid brass body, this valve contains a swinging gate that opens when water flows out but will shut if the flow is reversed. An arrow is molded onto the side of the valve to ensure proper function when installed. This valve is ideal for both residential and commercial applications.

Maintain Proper Water Flow With Check Valves


Check valves are essential components designed to regulate the direction of water flow in plumbing systems. They help prevent backflow, helping maintain efficient operation while protecting the plumbing system. These plumbing valves are commonly used in water supply lines and drainage systems. Explore check valves at Lowe’s to find options suited for everyday plumbing applications.


Benefits of Check Valves

  • Backflow Prevention: Check valves are designed to stop reverse water flow and protect plumbing systems from contamination.
  • Reliable Operation: They help ensure proper functioning of pumps and connected plumbing components.
  • Durable Materials: Some plumbing check valves, like brass and bronze check valves, are durable and corrosion resistant.
  • Versatile Plumbing Use: They're suitable for use in residential water systems, irrigation setups and utility lines.


Key Features of Check Valves

  • Valve Configurations: Choose from double, in-line, spring-loaded and dual check valve designs to ensure backflow protection for different plumbing applications.
  • Installation Styles: Swing check valve and in-line check valve options are designed for straightforward installation within piping systems.
  • Durable Build: They're constructed with top-quality materials to withstand regular water pressure and system demands.
  • Compatibility Range: They're designed to work with common plumbing fittings and pipe types.


How to Choose Check Valves

  • Match System Requirements: Select check valves based on the system type, water pressure and required flow direction.
  • Consider Installation Location: Choose configurations suited for indoor plumbing or outdoor systems.
  • Review Material Preference: Select materials based on durability and compatibility with your plumbing setup.
  • Check Valve Type: Determine whether a standard or dual valve design is required for the application.


Check valves support everyday plumbing systems by helping prevent unwanted backflow. They’re useful for improving system reliability and supporting long-term performance. For a more complete setup, consider pairing valves with fittings or pipe connectors to enhance system efficiency. Shop at Lowe’s today.