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  5. Pipes, Valves & Fittings
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  7. Valves
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  9. Check Valves

Check Valves (4,000 items)

Zoeller 1-1/4" or 1-1/2" Slip PVC Full Flow Check Valve 30-0192
Zoeller

1-1/4" or 1-1/2" Slip PVC Full Flow Check Valve

Zoro # G0359283
Mfr # 30-0192
product price: 
$21.59
/ea
Apollo Valves 1/2" FNPT Stainless Steel Ball Cone Spring Check Valve 6210301
Apollo Valves

1/2" FNPT Stainless Steel Ball Cone Spring Check Valve

Zoro # G2317883
Mfr # 6210301
product price: 
$88.15
/ea
Hayward Flow Control Check Valve, True Union, Ball, 2", PVC/EPDM, S/T TC10200STE
Hayward Flow Control

Check Valve, True Union, Ball, 2", PVC/EPDM, S/T

Zoro # G2656367
Mfr # TC10200STE
product price: 
$154.99
/ea
Zoro Select Swing Check Valve, 2 in, FNPT x FNPT, Inline, Brass Body 6VDT8
Zoro Select

Swing Check Valve, 2 in, FNPT x FNPT, Inline, Brass Body

Zoro # G3746845
Mfr # 6VDT8
product price: 
$51.99
/ea
Apollo Valves 3/4" FNPT Bronze Ball Cone Spring Check Valve 6110401
Apollo Valves

3/4" FNPT Bronze Ball Cone Spring Check Valve

Zoro # G0485965
Mfr # 6110401
product price: 
$53.79
/ea
Apollo Valves 1/2" FNPT Bronze Ball Cone Spring Check Valve 6110301
Apollo Valves

1/2" FNPT Bronze Ball Cone Spring Check Valve

Zoro # G1334331
Mfr # 6110301
product price: 
$35.55
/ea
Zoro Select Swing Check Valve, 1/2 in, FNPT x FNPT, Inline, Brass Body 6VDT3
Zoro Select

Swing Check Valve, 1/2 in, FNPT x FNPT, Inline, Brass Body

Zoro # G3744824
Mfr # 6VDT3
product price: 
$11.69
/ea
Nds Swing Check Valve, Inline, 2 in Pipe Size, Socket x Socket, PVC Body, 6-9/64 in L 1520-20
Nds

Swing Check Valve, Inline, 2 in Pipe Size, Socket x Socket, PVC Body, 6-9/64 in L

Zoro # G1238912
Mfr # 1520-20
product price: 
$38.79
/ea
Zoro Select Ball Cone Spring Check Valve, 1/2 in FNPT x 1/2 in FNPT, Inline Valve Body, 1-1/8 in Hex FP CHK 685-8F8F-F
Zoro Select

Ball Cone Spring Check Valve, 1/2 in FNPT x 1/2 in FNPT, Inline Valve Body, 1-1/8 in Hex

Zoro # G2574871
Mfr # FP CHK 685-8F8F-F
product price: 
$18.39
/ea
Nds Swing Check Valve, Inline, 1-1/2 in, Socket x Socket, PVC Body 1520-15
Nds

Swing Check Valve, Inline, 1-1/2 in, Socket x Socket, PVC Body

Zoro # G2796841
Mfr # 1520-15
product price: 
$30.49
/ea
Milwaukee Valve Swing Y Check Valve, 509Y Series, 2 in, FNPT x FNPT, Bronze Body 509Y 2"
Milwaukee Valve

Swing Y Check Valve, 509Y Series, 2 in, FNPT x FNPT, Bronze Body

Zoro # G3984102
Mfr # 509Y 2"
product price: 
$201.99
/ea
Watts Dual Check Valve, Bronze, FNPT Union, 3/4 in 9D-M2-3/4"
Watts

Dual Check Valve, Bronze, FNPT Union, 3/4 in

Zoro # G0291645
Mfr # 9D-M2-3/4"
product price: 
$179.50
/ea
Smith-Cooper 1/2" Brass Inline Check Valve 4347003700
Smith-Cooper

1/2" Brass Inline Check Valve

Zoro # G6775863
Mfr # 4347003700
product price: 
$9.99
/ea
Milwaukee Valve 4" Flanged Cast Iron Swing Check Valve 2974-M 4
Milwaukee Valve

4" Flanged Cast Iron Swing Check Valve

Zoro # G2534944
Mfr # 2974-M 4
product price: 
$626.17
/ea
Banjo Check Valve, Inline Spring, 1 in, FNPT x FNPT, Polypropylene Body, EPDM Seal CV100
Banjo

Check Valve, Inline Spring, 1 in, FNPT x FNPT, Polypropylene Body, EPDM Seal

Zoro # G408446636
Mfr # CV100
product price: 
$22.19
/ea
Apollo Valves 1" FNPT Bronze Ball Cone Spring Check Valve 6110501
Apollo Valves

1" FNPT Bronze Ball Cone Spring Check Valve

Zoro # G0936835
Mfr # 6110501
product price: 
$74.55
/ea
Grundfos 3-Speed Circulator Pump, 1/25 HP UPS15-58FC
Grundfos

3-Speed Circulator Pump, 1/25 HP

Zoro # G6068222
Mfr # UPS15-58FC
product price: 
$194.99
/ea
Milwaukee Valve Swing Y Check Valve, 509Y Series, 1 in, FNPT x FNPT, Bronze Body 509Y 1"
Milwaukee Valve

Swing Y Check Valve, 509Y Series, 1 in, FNPT x FNPT, Bronze Body

Zoro # G4081314
Mfr # 509Y 1"
product price: 
$92.29
/ea
Hayward Flow Control Check Valve, True Union, Ball, 3", PVC/EPDM, Socket TC1300SE
Hayward Flow Control

Check Valve, True Union, Ball, 3", PVC/EPDM, Socket

Zoro # G2080741
Mfr # TC1300SE
product price: 
$382.99
/ea
Apollo Valves 1" FNPT Stainless Steel Ball Cone Spring Check Valve 6210501
Apollo Valves

1" FNPT Stainless Steel Ball Cone Spring Check Valve

Zoro # G1927825
Mfr # 6210501
product price: 
$205.99
/ea
Milwaukee Valve 3/4" FNPT Bronze Swing Y Check Valve 509Y 3/4"
Milwaukee Valve

3/4" FNPT Bronze Swing Y Check Valve

Zoro # G3974047
Mfr # 509Y 3/4"
product price: 
$69.59
/ea
Simmons 1" NPT Bronze Spring Check Valve 503SB
Simmons

1" NPT Bronze Spring Check Valve

Zoro # G6245403
Mfr # 503SB
product price: 
$47.19
/ea
Milwaukee Valve 1-1/2" FNPT Bronze Swing Y Check Valve 509Y 1 1/2"
Milwaukee Valve

1-1/2" FNPT Bronze Swing Y Check Valve

Zoro # G4062904
Mfr # 509Y 1 1/2"
product price: 
$150.99
/ea
Apollo Valves 3/4" FNPT Stainless Steel Ball Cone Spring Check Valve 6210401
Apollo Valves

3/4" FNPT Stainless Steel Ball Cone Spring Check Valve

Zoro # G0643212
Mfr # 6210401
product price: 
$167.99
/ea
Apollo Valves 2" FNPT Bronze Ball Cone Spring Check Valve 6110801
Apollo Valves

2" FNPT Bronze Ball Cone Spring Check Valve

Zoro # G1153765
Mfr # 6110801
product price: 
$227.99
/ea
Apollo Valves 1-1/2" FNPT Bronze Ball Cone Spring Check Valve 6110701
Apollo Valves

1-1/2" FNPT Bronze Ball Cone Spring Check Valve

Zoro # G1859313
Mfr # 6110701
product price: 
$148.99
/ea
Keckley 6" Cast Iron Wafer Check Valve DD1F-CI-34136-600
Keckley

6" Cast Iron Wafer Check Valve

Zoro # G1612567
Mfr # DD1F-CI-34136-600
product price: 
$461.99
/ea
Apollo Valves 3/8" FNPT Stainless Steel Ball Cone Spring Check Valve 6210201
Apollo Valves

3/8" FNPT Stainless Steel Ball Cone Spring Check Valve

Zoro # G1732893
Mfr # 6210201
product price: 
$89.79
/ea
Parker 1/2" FNPT Stainless Steel Instrumentation Check Valve 8F-C8L-1-SS
Parker

1/2" FNPT Stainless Steel Instrumentation Check Valve

Zoro # G2479793
Mfr # 8F-C8L-1-SS
product price: 
$235.99
/ea
Banjo Check Valve, Inline Spring, 1 in, MNPT x FNPT, Polypropylene Body CV100MT
Banjo

Check Valve, Inline Spring, 1 in, MNPT x FNPT, Polypropylene Body

Zoro # G908446655
Mfr # CV100MT
product price: 
$18.35
/ea
Parker 1/4" FNPT Stainless Steel Instrumentation Check Valve 4F-C4L-1-SS
Parker

1/4" FNPT Stainless Steel Instrumentation Check Valve

Zoro # G1195311
Mfr # 4F-C4L-1-SS
product price: 
$115.99
/ea
Parker 1/4" Push Acetal Ball Check Valve A4VC4-MG
Parker

1/4" Push Acetal Ball Check Valve

Zoro # G3105313
Mfr # A4VC4-MG
product price: 
$14.49
/ea
Milwaukee Valve Swing Y Check Valve, 509Y Series, 1/2 in, FNPT x FNPT, Bronze Body 509Y 1/2"
Milwaukee Valve

Swing Y Check Valve, 509Y Series, 1/2 in, FNPT x FNPT, Bronze Body

Zoro # G3890196
Mfr # 509Y 1/2"
product price: 
$55.59
/ea
Zoeller Silent Combo Swing Check Valve 2" 30-0236
Zoeller

Silent Combo Swing Check Valve 2"

Zoro # G3647795
Mfr # 30-0236
product price: 
$58.59
/ea
Zoro Select 3/4" FNPT Ball Cone Spring Check Valve FP CHK 687-12F12F-F
Zoro Select

3/4" FNPT Ball Cone Spring Check Valve

Zoro # G3409612
Mfr # FP CHK 687-12F12F-F
product price: 
$22.19
/ea
Hayward Flow Control Check Valve, True Union, Ball, 1-1/2", PVC/EPDM, S/T TC10150STE
Hayward Flow Control

Check Valve, True Union, Ball, 1-1/2", PVC/EPDM, S/T

Zoro # G1471662
Mfr # TC10150STE
product price: 
$117.99
/ea
Check Valves (4,000 items)
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About Check Valves

Check Valves are designed to prevent the backflow of liquids, gases, and other substances from flowing in the wrong direction. They are typically used in piping systems to protect equipment from damage due to reverse flow.

Types of Check Valves

Check Valves come in a variety of sizes and materials, such as 1/2 check valves, 3/4 inch check valves, and 6 inch PVC check valves. Some Check Valves use springs or diaphragms to ensure that they close properly when pressure is applied. Other Check Valves may be made with stainless steel or brass components for more durability.

How Check Valves are Made

Check Valves can be made from a range of materials including plastic, metal alloys, rubber compounds, and polymers. These materials are formed into different shapes depending on their purpose - for example an inline check valve is typically cylindrical while a one-way valve supplier may use flaps or discs.

Industries that Use Check Valves

Check Valves are commonly used by plumbers and engineers in industries such as water treatment plants, food processing facilities, chemical plants, automotive manufacturing plants and oil refineries. Professionals use them to control the flow of liquids in pipes while ensuring that no backflow occurs.

Find the Check Valves You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of plumbing tools & supplies, along with other equipment and essentials to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time.
Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

Frequently Asked Questions

A check valve is a device that allows fluid to flow in one direction and prevents it from flowing back in the opposite direction.

Check valves work by using a flapper or ball to block the flow of fluid in the reverse direction. When the fluid flows in the correct direction, the flapper or ball is pushed open, allowing the fluid to pass through.

There are many different types of check valves, each with its own unique design and function. Some of the most common types of check valves include swing check valves, ball check valves, and diaphragm check valves.

The right check valve for your application will depend on a number of factors, including the type of fluid, the flow rate, and the pressure. It is important to consult with a professional to ensure that you choose the right check valve for your needs.

Related Categories

Ball ValvesSolenoid ValvesRelief ValvesValve PartsPVC Pipe Fittings
Black Pipe FittingsStainless Steel Pipe FittingsBrass Pipe FittingsCamlock FittingsPush-to-Connect Tube Fittings
3/4" swing check valves1" swing check valves3/4 inch check valves3" pvc check valves3" swing check valves
5" wafer check valves1/2" ss check valves3/4" pvc check valves4" foot valves1/4 inch check valves

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