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  1. Home
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  3. Plumbing
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  5. Pipes, Valves & Fittings
  6. /
  7. Valves
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  9. Check Valves

Check Valves (3,500+ items) - Page 40

Milwaukee Valve 3/4" Sweat Low Lead Bronze Spring Check Valve UP1509 3/4
Milwaukee Valve

3/4" Sweat Low Lead Bronze Spring Check Valve

Zoro # G3136314
Mfr # UP1509 3/4
product price:  $103.99
/ea
Vne Spring Check Valve, 4.125 in Overall L 45C-61.0-E
Vne

Spring Check Valve, 4.125 in Overall L

Zoro # G208363522
Mfr # 45C-61.0-E
product price:  $344.99
/ea
Zoro Select 1/8" MNPT x FNPT Brass Piston Spring Check Valve CHK BRS 210-2M2F-F
Zoro Select

1/8" MNPT x FNPT Brass Piston Spring Check Valve

Zoro # G0559605
Mfr # CHK BRS 210-2M2F-F
product price:  $22.69
/ea
Dayton Spring Check Valve, 6.375 in Overall L 4RG67
Dayton

Spring Check Valve, 6.375 in Overall L

Zoro # G2006085
Mfr # 4RG67
product price:  $69.89
/ea
Dixon 3/8" FNPT Stainless Steel Ball Cone Check Valve 62-102
Dixon

3/8" FNPT Stainless Steel Ball Cone Check Valve

Zoro # G6556621
Mfr # 62-102
product price:  $120.99
/ea
Zoro Select 1/8" FNPT Stainless Steel Piston Spring Check Valve CHK SST 215-2F2F-F
Zoro Select

1/8" FNPT Stainless Steel Piston Spring Check Valve

Zoro # G2120361
Mfr # CHK SST 215-2F2F-F
product price:  $47.49
/ea
Milwaukee Valve 1/2" Sweat Low Lead Bronze Spring Check Valve UP1509 1/2
Milwaukee Valve

1/2" Sweat Low Lead Bronze Spring Check Valve

Zoro # G1274917
Mfr # UP1509 1/2
product price:  $67.79
/ea
Apollo Valves 1/2" Press Lead Free Bronze Ball Cone Check Valve 61LF10301PR
Apollo Valves

1/2" Press Lead Free Bronze Ball Cone Check Valve

Zoro # G4679053
Mfr # 61LF10301PR
product price:  $52.69
/ea
Sharpe Check Valve, 4.68 in Overall L 4371000560
Sharpe

Check Valve, 4.68 in Overall L

Zoro # G908258937
Mfr # 4371000560
product price:  $162.99
/ea
Hayward Flow Control Check Valve, True Union, Ball, 3/4", PP/FPM, Threaded TC30075T
Hayward Flow Control

Check Valve, True Union, Ball, 3/4", PP/FPM, Threaded

Zoro # G2436156
Mfr # TC30075T
product price:  $152.99
/ea
Keckley 2" Globe Check Valve, Length: 6-3/4" 2CG3R-CI-B2334
Keckley

2" Globe Check Valve, Length: 6-3/4"

Zoro # G3819678
Mfr # 2CG3R-CI-B2334
product price:  $279.99
/ea
Proline Series 3/4 In. PVC Schedule 40 Solvent Check Valve 101-604
Proline Series

3/4 In. PVC Schedule 40 Solvent Check Valve

Zoro # G611360583
Mfr # 101-604
product price:  $6.69
/ea
Sold in mult. of 5 for $33.45
Keckley Wafer Check Valve, 316SS Seat, 3", CS 3CW2R-CS-36336
Keckley

Wafer Check Valve, 316SS Seat, 3", CS

Zoro # G3819197
Mfr # 3CW2R-CS-36336
product price:  $496.99
/ea
Zoro Select Swing Check Valve, 11.8281 in Overall L SCOV111
Zoro Select

Swing Check Valve, 11.8281 in Overall L

Zoro # G8329106
Mfr # SCOV111
product price:  $1,341.99
/ea
Milwaukee Valve 8" Flanged Cast Steel Swing Check Valve 1570 CB2 8"
Milwaukee Valve

8" Flanged Cast Steel Swing Check Valve

Zoro # G3482157
Mfr # 1570 CB2 8"
product price:  $2,029.99
/ea
Milwaukee Valve Swing Check Valve, 3.5625 in Overall L 510T 1 1/4
Milwaukee Valve

Swing Check Valve, 3.5625 in Overall L

Zoro # G2497494
Mfr # 510T 1 1/4
product price:  $163.76
/ea
Zoro Select 1/8" Barb White Nylon Ball Cone Spring Check Valve WN CHK 695-2B2B-B
Zoro Select

1/8" Barb White Nylon Ball Cone Spring Check Valve

Zoro # G1599814
Mfr # WN CHK 695-2B2B-B
product price:  $7.99
/ea
Watts Flow Check Valve, 1 In, Sweat, Bronze 2000S 1
Watts

Flow Check Valve, 1 In, Sweat, Bronze

Zoro # G2125042
Mfr # 2000S 1
product price:  $108.99
/ea
American Valve Schedule 80 PVC Swing Check Valve Flanged P440F 6''
American Valve

Schedule 80 PVC Swing Check Valve Flanged

Zoro # G015189704
Mfr # P440F 6''
product price:  $1,910.99
/ea
Apollo Valves 3/4" Swivel x NPT Lead Free Bronze Dual Check Valve 4ALF3S54A
Apollo Valves

3/4" Swivel x NPT Lead Free Bronze Dual Check Valve

Zoro # G5151571
Mfr # 4ALF3S54A
product price:  $73.99
/ea
Georg Fischer 3/8" Threaded Socket CPVC/EPDM Spring Check Valve 163562101
Georg Fischer

3/8" Threaded Socket CPVC/EPDM Spring Check Valve

Zoro # G4653512
Mfr # 163562101
product price:  $208.99
/ea
Zoro Select 1/2" FNPT Brass Poppet Spring Check Valve CHK BRS 850-8F8F-F
Zoro Select

1/2" FNPT Brass Poppet Spring Check Valve

Zoro # G2836504
Mfr # CHK BRS 850-8F8F-F
product price:  $32.89
/ea
Hayward Flow Control Check Valve, True Union, Ball, 2-1/2", PVC/EPDM, Threaded TC1250TE
Hayward Flow Control

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

Zoro # G2849847
Mfr # TC1250TE
product price:  $393.99
/ea
Ham-Let Instrumentation Check Valve H-400-SS-L-3/4-1/3PSI
Ham-Let

Instrumentation Check Valve

Zoro # G808258853
Mfr # H-400-SS-L-3/4-1/3PSI
product price:  $559.99
/ea
Cole-Parmer Miniature Check Valve, Polypropylene Housing, Viton diaphragm, 5/16in ID GM79PFA
Cole-Parmer

Miniature Check Valve, Polypropylene Housing, Viton diaphragm, 5/16in ID

Zoro # G514185504
Mfr # GM79PFA
product price:  $4.69
/ea
Sold in mult. of 2 for $9.38
Jomar Valve 1-1/4" NPT Lead Free Brass Spring Check Valve T-521G
Jomar Valve

1-1/4" NPT Lead Free Brass Spring Check Valve

Zoro # G7052888
Mfr # T-521G
product price:  $65.79
/ea
Cole-Parmer Miniature Check Valve, Nylon Housing, Silicone Diaphragm, 1/4in ID GM64ASA
Cole-Parmer

Miniature Check Valve, Nylon Housing, Silicone Diaphragm, 1/4in ID

Zoro # G214185507
Mfr # GM64ASA
product price:  $5.79
/ea
Sold in mult. of 2 for $11.58
American Valve Schedule 80 PVC True Union Ball Check Valve P460U 1 1/4''
American Valve

Schedule 80 PVC True Union Ball Check Valve

Zoro # G115189697
Mfr # P460U 1 1/4''
product price:  $99.99
/ea
Simmons 1'' Silicon Bronze Lead Free Check Valve 503SB
Simmons

1'' Silicon Bronze Lead Free Check Valve

Zoro # G921860667
Mfr # 503SB
product price:  $50.19
/ea
Milwaukee Valve 3/8" Threaded Low Lead Bronze Spring Check Valve UP548T 3/8
Milwaukee Valve

3/8" Threaded Low Lead Bronze Spring Check Valve

Zoro # G2119573
Mfr # UP548T 3/8
product price:  $48.59
/ea
Strike3 ME6016 1.75 in. Double Check Fill Valve ST3291790
Strike3

ME6016 1.75 in. Double Check Fill Valve

Zoro # G911945350
Mfr # ST3291790
product price:  $88.35
/ea
Smith-Cooper 3/4" C X C Brass Inline Check Valve 4347003840
Smith-Cooper

3/4" C X C Brass Inline Check Valve

Zoro # G6775918
Mfr # 4347003840
product price:  $13.29
/ea
Thrifco Plumbing 1 Inch Threaded Spring Check Valve 6415182
Thrifco Plumbing

1 Inch Threaded Spring Check Valve

Zoro # G909547528
Mfr # 6415182
product price:  $12.19
/ea
Wilkins In-Line Single Check Valve, 12-40XL2 12-40XL2
Wilkins

In-Line Single Check Valve, 12-40XL2

Zoro # G8665892
Mfr # 12-40XL2
product price:  $110.99
/ea
Simmons 3/4'' Silicon Bronze Lead Free Check Valve 502SB
Simmons

3/4'' Silicon Bronze Lead Free Check Valve

Zoro # G621863289
Mfr # 502SB
product price:  $45.39
/ea
Simmons 1'' Bronze Female Thread Check Valve 7503
Simmons

1'' Bronze Female Thread Check Valve

Zoro # G821869678
Mfr # 7503
product price:  $29.69
/ea
Check Valves (3,500+ items) - Page 40
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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.

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