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  9. Check Valves

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

Zoro Select 1/8" FNPT Gray PVC Ball Cone Spring Check Valve PVC CHK 426-2F2F-B
Zoro Select

1/8" FNPT Gray PVC Ball Cone Spring Check Valve

Zoro # G0565844
Mfr # PVC CHK 426-2F2F-B
product price: 
$17.89
/ea
Keckley 5" Globe Check Valve, Body Material: Cast Stainless Steel 5CG4R-36-36336
Keckley

5" Globe Check Valve, Body Material: Cast Stainless Steel

Zoro # G3819879
Mfr # 5CG4R-36-36336
product price: 
$6,130.99
/ea
Vne Spring Check Valve, 45C-6 Series, Inline, Clamp x Clamp, 1 1/2 in, 316L Stainless Steel 45C-61.5-E
Vne

Spring Check Valve, 45C-6 Series, Inline, Clamp x Clamp, 1 1/2 in, 316L Stainless Steel

Zoro # G708363558
Mfr # 45C-61.5-E
product price: 
$374.99
/ea
Milwaukee Valve Swing Y Check Valve, 1509Y Series, 2 in, Sweat x Sweat, Bronze Body 1509Y 2"
Milwaukee Valve

Swing Y Check Valve, 1509Y Series, 2 in, Sweat x Sweat, Bronze Body

Zoro # G4026845
Mfr # 1509Y 2"
product price: 
$490.99
/ea
Chicago Valves And Controls 1", Forged Steel Class 800 Piston Check Valve, FNPT P484TE010
Chicago Valves And Controls

1", Forged Steel Class 800 Piston Check Valve, FNPT

Zoro # G9158699
Mfr # P484TE010
product price: 
$77.33
/ea
Ham-Let Instrumentation Check Valve, H400-HP Series, 1/4 in, Let-Lok x Let-Lok, 316 Stainless Steel H-400HP-SS-L-1/4-1/3PSI
Ham-Let

Instrumentation Check Valve, H400-HP Series, 1/4 in, Let-Lok x Let-Lok, 316 Stainless Steel

Zoro # G808258792
Mfr # H-400HP-SS-L-1/4-1/3PSI
product price: 
$147.99
/ea
Legend Valve Check Valve, T-311, Flanged, Cast Iron, 2-1/2 in 116-202
Legend Valve

Check Valve, T-311, Flanged, Cast Iron, 2-1/2 in

Zoro # G1849050
Mfr # 116-202
product price: 
$259.99
/ea
Ez-Fluid Swing Check Valve, Threaded, Brass, 1-1/2 in EZSCT112
Ez-Fluid

Swing Check Valve, Threaded, Brass, 1-1/2 in

Zoro # G513121046
Mfr # EZSCT112
product price: 
$45.65
/ea
Superjock Inline Scupper Check Valve, Double Barb, 1.125 in, Black SU2561044
Superjock

Inline Scupper Check Valve, Double Barb, 1.125 in, Black

Zoro # G610045085
Mfr # SU2561044
product price: 
$49.29
/ea
Asahi Ball Check Valve, Inline, 1/2 in Pipe Size, Union Socket x Union Socket, PVC Body 1213005
Asahi

Ball Check Valve, Inline, 1/2 in Pipe Size, Union Socket x Union Socket, PVC Body

Zoro # G6162208
Mfr # 1213005
product price: 
$62.29
/ea
Legend Valve Check Valve, S-611 Series, 1 in, Solvent x Solvent, Stainless Steel Body 203-205
Legend Valve

Check Valve, S-611 Series, 1 in, Solvent x Solvent, Stainless Steel Body

Zoro # G1774248
Mfr # 203-205
product price: 
$11.75
/ea
Milwaukee Valve 3/4" Solder Bronze Swing Y Check Valve 1509Y 3/4"
Milwaukee Valve

3/4" Solder Bronze Swing Y Check Valve

Zoro # G4117303
Mfr # 1509Y 3/4"
product price: 
$118.99
/ea
Keckley 8" Wafer Check Valve, Width: 6-1/2" 8CW2R-36-36336
Keckley

8" Wafer Check Valve, Width: 6-1/2"

Zoro # G3819337
Mfr # 8CW2R-36-36336
product price: 
$3,800.99
/ea
Legend Valve Check Valve, Y-Pattern, 1 in, Sweat x Sweat, Bronze 105-405NL
Legend Valve

Check Valve, Y-Pattern, 1 in, Sweat x Sweat, Bronze

Zoro # G1785798
Mfr # 105-405NL
product price: 
$54.39
/ea
Sharpe Check Valve, 2483SC Series, Inline Swing, 1 in, Socket Weld x Socket Weld, Carbon Steel 4371000740
Sharpe

Check Valve, 2483SC Series, Inline Swing, 1 in, Socket Weld x Socket Weld, Carbon Steel

Zoro # G708258922
Mfr # 4371000740
product price: 
$88.99
/ea
American Valve Swing Check Valve, Flanged, Schedule 80 PVC, 6 in P440F 6''
American Valve

Swing Check Valve, Flanged, Schedule 80 PVC, 6 in

Zoro # G015189704
Mfr # P440F 6''
product price: 
$1,910.99
/ea
Milwaukee Valve Swing Y Check Valve, 7.875 in Overall L 507 3
Milwaukee Valve

Swing Y Check Valve, 7.875 in Overall L

Zoro # G0437263
Mfr # 507 3
product price: 
$1,236.39
/ea
Plast-O-Matic Check Valve, CKS Series, 3 in, FNPT x Socket, Inline Disc, PVC Body, Viton Seal CKS300VT-NC-PV
Plast-O-Matic

Check Valve, CKS Series, 3 in, FNPT x Socket, Inline Disc, PVC Body, Viton Seal

Zoro # G4127234
Mfr # CKS300VT-NC-PV
product price: 
$760.99
/ea
Legend Valve Check Valve, Y-Pattern, 1/2 in, Sweat x Sweat, Bronze 105-403
Legend Valve

Check Valve, Y-Pattern, 1/2 in, Sweat x Sweat, Bronze

Zoro # G1785746
Mfr # 105-403
product price: 
$20.15
/ea
Legend Valve Check Valve, T-455 NL, In-Line, 2 in, FNPT x FNPT, Bronze 105-448NL
Legend Valve

Check Valve, T-455 NL, In-Line, 2 in, FNPT x FNPT, Bronze

Zoro # G1801119
Mfr # 105-448NL
product price: 
$130.99
/ea
Keckley 4" Globe Check Valve, Connection Type: Flanged 4CG2R-36-36336
Keckley

4" Globe Check Valve, Connection Type: Flanged

Zoro # G3819693
Mfr # 4CG2R-36-36336
product price: 
$2,909.99
/ea
Asco CHECK VALVE V0122
Asco

CHECK VALVE

Zoro # G409981778
Mfr # V0122
product price: 
$202.99
/ea
Parker 1/4" A-LOK(R) Brass Instrumentation Check Valve 4A-C4L-10-BN-B
Parker

1/4" A-LOK(R) Brass Instrumentation Check Valve

Zoro # G1475652
Mfr # 4A-C4L-10-BN-B
product price: 
$70.59
/ea
Dayton 2" Compression PVC Swing Check Valve 4RG89
Dayton

2" Compression PVC Swing Check Valve

Zoro # G1518851
Mfr # 4RG89
product price: 
$207.99
/ea
Keckley 12" Globe Check Valve, Max. Pressure: 720 psi at 100 Degrees F 12CG4R-36-36336
Keckley

12" Globe Check Valve, Max. Pressure: 720 psi at 100 Degrees F

Zoro # G3819921
Mfr # 12CG4R-36-36336
product price: 
$21,349.99
/ea
Hammond Valve Swing Check Valve, 967 Series, 1 in, FNPT x FNPT, Inline, Brass 967 1
Hammond Valve

Swing Check Valve, 967 Series, 1 in, FNPT x FNPT, Inline, Brass

Zoro # G1199125
Mfr # 967 1
product price: 
$100.99
/ea
Keckley Globe Check Valve, Flanged, Cast Stainless Steel Body, 10 in Pipe Size 10CG2R-36-36336
Keckley

Globe Check Valve, Flanged, Cast Stainless Steel Body, 10 in Pipe Size

Zoro # G3819851
Mfr # 10CG2R-36-36336
product price: 
$10,508.99
/ea
Apollo Valves 3/4" NPT Lead Free Bronze Dual Check Valve 4NLF3A44B
Apollo Valves

3/4" NPT Lead Free Bronze Dual Check Valve

Zoro # G5298711
Mfr # 4NLF3A44B
product price: 
$191.99
/ea
Jomar Valve Y-Pattern Check Valve, Threaded, Lead Free Bronze Body, 1-1/4 in Pipe Size T-511G
Jomar Valve

Y-Pattern Check Valve, Threaded, Lead Free Bronze Body, 1-1/4 in Pipe Size

Zoro # G7130238
Mfr # T-511G
product price: 
$156.99
/ea
Dayton Spring Check Valve, Inline, 1 1/4 in, Slip x Slip, PVC Body, 6 3/8 in Overall L 4RG73
Dayton

Spring Check Valve, Inline, 1 1/4 in, Slip x Slip, PVC Body, 6 3/8 in Overall L

Zoro # G3099957
Mfr # 4RG73
product price: 
$80.49
/ea
Little Giant Pump Check Valve, Condensate Pump, Inline Ball, FNPT x MNPT, 1/4 in NPT, Buna-N 599061
Little Giant Pump

Check Valve, Condensate Pump, Inline Ball, FNPT x MNPT, 1/4 in NPT, Buna-N

Zoro # G0455725
Mfr # 599061
product price: 
$13.69
/ea
Chicago Valves And Controls Swing Check Valve, 4 in Pipe Size, Class 150, Flanged, Cast Steel 41411040
Chicago Valves And Controls

Swing Check Valve, 4 in Pipe Size, Class 150, Flanged, Cast Steel

Zoro # G9156632
Mfr # 41411040
product price: 
$565.99
/ea
Sharpe Check Valve, 2027 Series, Inline Swing, 1/2 in, Socket Weld x Socket Weld, 316 Stainless Steel 4371000320
Sharpe

Check Valve, 2027 Series, Inline Swing, 1/2 in, Socket Weld x Socket Weld, 316 Stainless Steel

Zoro # G508258801
Mfr # 4371000320
product price: 
$77.99
/ea
Everflow Swing Check Valve, 3/4 in Pipe Size, Press Connection, Cast Brass 400R034-NL
Everflow

Swing Check Valve, 3/4 in Pipe Size, Press Connection, Cast Brass

Zoro # G201106911
Mfr # 400R034-NL
product price: 
$41.69
/ea
Ham-Let Instrumentation Check Valve, H400 Series, Inline Spring, 1/2 in MNPT x MNPT, 316 SS H-480-SS-N-1/2-1/3PSI
Ham-Let

Instrumentation Check Valve, H400 Series, Inline Spring, 1/2 in MNPT x MNPT, 316 SS

Zoro # G708258854
Mfr # H-480-SS-N-1/2-1/3PSI
product price: 
$189.99
/ea
Keckley 10" Wafer Check Valve, Length: 16" 10CW2R-36-36336
Keckley

10" Wafer Check Valve, Length: 16"

Zoro # G3819361
Mfr # 10CW2R-36-36336
product price: 
$5,340.99
/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.

Related Categories

Ball ValvesSolenoid ValvesValve PartsRelief ValvesPVC Pipe Fittings
Black Pipe FittingsStainless Steel Pipe FittingsBrass Pipe FittingsPush-to-Connect Tube FittingsCamlock Fittings
1-1/2" swing check valves1" brass check valves3/4" pvc check valves8" wafer check valves3/4" swing check valves
1/2" pvc check valves1/2 inch check valves2" pvc check valves2" flanged check valves3" spring check valves

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