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

Check Valves (3,500+ items) - Page 36

Legend Valve Check Valve, S-451, 2 in, Sweat x Sweat, Brass Body 105-208NL
Legend Valve

Check Valve, S-451, 2 in, Sweat x Sweat, Brass Body

Zoro # G1799518
Mfr # 105-208NL
product price: 
$77.49
/ea
Legend Valve Check Valve, Wafer, 4 in, T-312, Ductile Iron Body, SS316 Disc 116-234
Legend Valve

Check Valve, Wafer, 4 in, T-312, Ductile Iron Body, SS316 Disc

Zoro # G1853567
Mfr # 116-234
product price: 
$129.99
/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: 
$371.99
/ea
Pumpspy Silent Threaded Check Valve 1-1/2 CV-150T
Pumpspy

Silent Threaded Check Valve 1-1/2

Zoro # G009944265
Mfr # CV-150T
product price: 
$19.39
/ea
Legend Valve Check Valve, Y-Pattern, S-453, 1-1/4 in, Sweat x Sweat, Bronze 105-406
Legend Valve

Check Valve, Y-Pattern, S-453, 1-1/4 in, Sweat x Sweat, Bronze

Zoro # G1775544
Mfr # 105-406
product price: 
$59.49
/ea
Legend Valve In-Line Check Valve, S-455 Series, 1-1/2 in, Sweat x Sweat, Bronze 105-467
Legend Valve

In-Line Check Valve, S-455 Series, 1-1/2 in, Sweat x Sweat, Bronze

Zoro # G1775736
Mfr # 105-467
product price: 
$76.95
/ea
Zoro Select 1/4" FNPT x MNPT Stainless Steel Piston Spring Check Valve CHK SST 410-4F4M-B
Zoro Select

1/4" FNPT x MNPT Stainless Steel Piston Spring Check Valve

Zoro # G3456966
Mfr # CHK SST 410-4F4M-B
product price: 
$42.69
/ea
Ham-Let Instrumentation Check Valve, H400-HP Series, Inline Spring, 8 mm Let-Lok x Let-Lok, 10 psi H-400HP-SS-L-8MM10PSI
Ham-Let

Instrumentation Check Valve, H400-HP Series, Inline Spring, 8 mm Let-Lok x Let-Lok, 10 psi

Zoro # G808789593
Mfr # H-400HP-SS-L-8MM10PSI
product price: 
$127.99
/ea
Hands On Check Valve Assembly HA2526335
Hands On

Check Valve Assembly

Zoro # G311859981
Mfr # HA2526335
product price: 
$50.99
/ea
Overtime Swing Check Valve, PVC, 2 in OV2526479
Overtime

Swing Check Valve, PVC, 2 in

Zoro # G914888678
Mfr # OV2526479
product price: 
$86.89
/ea
Midland Industries Lift Check Valve, In-Line, 1/2 in FNPT, Forged Brass 944430
Midland Industries

Lift Check Valve, In-Line, 1/2 in FNPT, Forged Brass

Zoro # G721700538
Mfr # 944430
product price: 
$27.89
/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
Track Usa Check Valve, Spring Style, 1/4 in, Clear TR3323722
Track Usa

Check Valve, Spring Style, 1/4 in, Clear

Zoro # G211926936
Mfr # TR3323722
product price: 
$46.75
/ea
Midland Industries Check Valve, Lift, In-Line, 3/8 in FNPT, Forged Brass 944429
Midland Industries

Check Valve, Lift, In-Line, 3/8 in FNPT, Forged Brass

Zoro # G121699043
Mfr # 944429
product price: 
$47.19
/ea
Midland Industries Check Valve, Lift Inline, 1/4 in FNPT, Forged Brass 944428
Midland Industries

Check Valve, Lift Inline, 1/4 in FNPT, Forged Brass

Zoro # G321698976
Mfr # 944428
product price: 
$34.79
/ea
Eat-In Quiet Union Check Valve, White, 1.5 in Inlet, 40 psi, 130 deg EA3526570
Eat-In

Quiet Union Check Valve, White, 1.5 in Inlet, 40 psi, 130 deg

Zoro # G111957580
Mfr # EA3526570
product price: 
$55.69
/ea
Everflow Inline Spring Loaded Check Valve, 2 in FIP, Cast Brass 150T200-NL
Everflow

Inline Spring Loaded Check Valve, 2 in FIP, Cast Brass

Zoro # G001106890
Mfr # 150T200-NL
product price: 
$113.99
/ea
Hands On 600-8140 Waterway Air Check Valve- Clear - 0.25 in. HA3326442
Hands On

600-8140 Waterway Air Check Valve- Clear - 0.25 in.

Zoro # G012922885
Mfr # HA3326442
product price: 
$53.15
/ea
Campbell Quiet Check Valve, Spring-Loaded, PVC, 1-1/2 in B-0823-15
Campbell

Quiet Check Valve, Spring-Loaded, PVC, 1-1/2 in

Zoro # G411335927
Mfr # B-0823-15
product price: 
$37.95
/ea
Milwaukee Valve 2" Solder Low Lead Bronze Spring Check Valve UP1548T 2
Milwaukee Valve

2" Solder Low Lead Bronze Spring Check Valve

Zoro # G1432435
Mfr # UP1548T 2
product price: 
$178.99
/ea
Watts Backflow Preventer/Fill Valve, 1/2 in Pipe Size 0386463
Watts

Backflow Preventer/Fill Valve, 1/2 in Pipe Size

Zoro # G109769607
Mfr # 0386463
product price: 
$454.99
/ea
Honeywell Backflow Preventer 50043683-0
Honeywell

Backflow Preventer

Zoro # G6068265
Mfr # 50043683-0
product price: 
$106.99
/ea
Parker 1/2" A-LOK(R) Stainless Steel Instrumentation Check Valve 8A-C8L-10-SS
Parker

1/2" A-LOK(R) Stainless Steel Instrumentation Check Valve

Zoro # G1749937
Mfr # 8A-C8L-10-SS
product price: 
$266.99
/ea
Legend Valve Ball Check Valve, T-655 Series, PVC, FNPT x FNPT, 3/4 in 201-274
Legend Valve

Ball Check Valve, T-655 Series, PVC, FNPT x FNPT, 3/4 in

Zoro # G1803264
Mfr # 201-274
product price: 
$27.79
/ea
Legend Valve Check Valve, T-451, 1-1/2 in, FNPT x FNPT, Brass 105-107NL
Legend Valve

Check Valve, T-451, 1-1/2 in, FNPT x FNPT, Brass

Zoro # G1786498
Mfr # 105-107NL
product price: 
$62.95
/ea
Jomar Valve 4" NPT Brass Horizontal Check Valve T-501
Jomar Valve

4" NPT Brass Horizontal Check Valve

Zoro # G7031958
Mfr # T-501
product price: 
$342.99
/ea
Val-Matic 2-1/2" Flanged Cast Iron Silent Check Valve 1825A-DSY
Val-Matic

2-1/2" Flanged Cast Iron Silent Check Valve

Zoro # G2679004
Mfr # 1825A-DSY
product price: 
$683.99
/ea
Simmons Check Valve, Spring Loaded, Silicon Bronze, 1 in Pipe Size 542SB
Simmons

Check Valve, Spring Loaded, Silicon Bronze, 1 in Pipe Size

Zoro # G121868487
Mfr # 542SB
product price: 
$64.15
/ea
Legend Valve Check Valve, In-Line, 1/2 in, FNPT x FNPT, Bronze 105-443NL
Legend Valve

Check Valve, In-Line, 1/2 in, FNPT x FNPT, Bronze

Zoro # G1787155
Mfr # 105-443NL
product price: 
$28.15
/ea
Legend Valve Inline Check Valve, S-455 Series, 3/4 in, Sweat x Sweat, Bronze 105-464
Legend Valve

Inline Check Valve, S-455 Series, 3/4 in, Sweat x Sweat, Bronze

Zoro # G1850094
Mfr # 105-464
product price: 
$38.65
/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
Sharpe Check Valve, Series 25, Swing, 2 1/2 in, Flanged x Flanged, Carbon Steel Body 4371002010
Sharpe

Check Valve, Series 25, Swing, 2 1/2 in, Flanged x Flanged, Carbon Steel Body

Zoro # G108258973
Mfr # 4371002010
product price: 
$300.99
/ea
Zoro Select 1/4" FNPT Stainless Steel Piston Spring Check Valve CHK SST 415-4F4F-F
Zoro Select

1/4" FNPT Stainless Steel Piston Spring Check Valve

Zoro # G3238155
Mfr # CHK SST 415-4F4F-F
product price: 
$76.99
/ea
Everflow Check Valve, Inline Spring Loaded, FIP Connection, Cast Brass Body, 1/2 in 150T012-NL
Everflow

Check Valve, Inline Spring Loaded, FIP Connection, Cast Brass Body, 1/2 in

Zoro # G101106882
Mfr # 150T012-NL
product price: 
$16.65
/ea
Steel & Obrien Check Valve, Disk Type, Tri-Clamp, 1-1/2 in Tube Size, 316 Stainless Steel 45MP-1.5-CD-316
Steel & Obrien

Check Valve, Disk Type, Tri-Clamp, 1-1/2 in Tube Size, 316 Stainless Steel

Zoro # G5412800
Mfr # 45MP-1.5-CD-316
product price: 
$311.99
/ea
Legend Valve Check Valve, T-451 Series, Brass Body, FNPT x FNPT, 3/4 in 105-104
Legend Valve

Check Valve, T-451 Series, Brass Body, FNPT x FNPT, 3/4 in

Zoro # G1804558
Mfr # 105-104
product price: 
$15.15
/ea
Check Valves (3,500+ items) - Page 36
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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

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stainless springscheck valve inlineparker stainless steel filtercheck valve 1/8in tank check valve
check valve control checkflange mount check valveswagelok brassplast-o-matic 2" ball valve2.5 inch check valve

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