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  1. Home
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  5. Pipes, Valves & Fittings
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  9. Check Valves
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Check Valves (3,500+ 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:  $21.55
/ea
Zoro Select 2" NPT Brass Swing Check Valve 6VDT8
Zoro Select

2" NPT Brass Swing Check Valve

Zoro # G3746845
Mfr # 6VDT8
product price:  $57.59
/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
Banjo Check Valve, 3.03125 in Overall L CV100MT
Banjo

Check Valve, 3.03125 in Overall L

Zoro # G908446655
Mfr # CV100MT
product price:  $18.35
/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
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
Nds 2" Hub PVC Swing Check Valve 1520-20
Nds

2" Hub PVC Swing Check Valve

Zoro # G1238912
Mfr # 1520-20
product price:  $29.65
/ea
Nds 1-1/2" Hub PVC Swing Check Valve 1520-15
Nds

1-1/2" Hub PVC Swing Check Valve

Zoro # G2796841
Mfr # 1520-15
product price:  $22.99
/ea
Zoro Select 1/2" NPT Brass Swing Check Valve 6VDT3
Zoro Select

1/2" NPT Brass Swing Check Valve

Zoro # G3744824
Mfr # 6VDT3
product price:  $11.19
/ea
Smith-Cooper 1" Brass Inline Check Valve 4347003740
Smith-Cooper

1" Brass Inline Check Valve

Zoro # G6775811
Mfr # 4347003740
product price:  $18.69
/ea
Milwaukee Valve 2" FNPT Bronze Swing Y Check Valve 509Y 2"
Milwaukee Valve

2" FNPT Bronze Swing Y Check Valve

Zoro # G3984102
Mfr # 509Y 2"
product price:  $201.99
/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
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
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:  $51.25
/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
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:  $17.99
/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
Grundfos Ups15-58Fc 1/25 Hp 3 Speed UPS15-58FC
Grundfos

Ups15-58Fc 1/25 Hp 3 Speed

Zoro # G6068222
Mfr # UPS15-58FC
product price:  $194.99
/ea
Legend Valve 1-1/4"/1-1/2" S-614 PVC CHECK 203-237
Legend Valve

1-1/4"/1-1/2" S-614 PVC CHECK

Zoro # G2836787
Mfr # 203-237
product price:  $15.25
/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 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
Magic 1-1/2" Slip Clear PVC Silent Check Valve B-0823-15C
Magic

1-1/2" Slip Clear PVC Silent Check Valve

Zoro # G2364391
Mfr # B-0823-15C
product price:  $35.69
/ea
Watts 3/4" FNPT Bronze Dual Check Valve 3/4 LF7 U2-2
Watts

3/4" FNPT Bronze Dual Check Valve

Zoro # G5276354
Mfr # 3/4 LF7 U2-2
product price:  $101.84
/ea
Parker 3/8" Push Acetal Ball Check Valve A6VC6-MG
Parker

3/8" Push Acetal Ball Check Valve

Zoro # G1601327
Mfr # A6VC6-MG
product price:  $13.79
/ea
Banjo Check Valve, 3.15625 in Overall L CV100
Banjo

Check Valve, 3.15625 in Overall L

Zoro # G408446636
Mfr # CV100
product price:  $22.19
/ea
Zoeller Silent PVC Full Flow Check Valve 2" 30-0042
Zoeller

Silent PVC Full Flow Check Valve 2"

Zoro # G0880092
Mfr # 30-0042
product price:  $39.19
/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:  $133.99
/ea
Smith-Cooper 1-1/2" Brass Inline Check Valve 4347003780
Smith-Cooper

1-1/2" Brass Inline Check Valve

Zoro # G6775890
Mfr # 4347003780
product price:  $32.69
/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:  $329.99
/ea
Milwaukee Valve 1/2" FNPT Bronze Swing Y Check Valve 509Y 1/2"
Milwaukee Valve

1/2" FNPT Bronze Swing Y Check Valve

Zoro # G3890196
Mfr # 509Y 1/2"
product price:  $55.59
/ea
Zoeller 2" Slip PVC Full Flow Check Valve 30-0021
Zoeller

2" Slip PVC Full Flow Check Valve

Zoro # G3150472
Mfr # 30-0021
product price:  $45.99
/ea
Keckley 3" Cast Iron Wafer Check Valve DD1F-CI-34136-300
Keckley

3" Cast Iron Wafer Check Valve

Zoro # G1613075
Mfr # DD1F-CI-34136-300
product price:  $152.99
/ea
Zoro Select 3/4" NPT Brass Swing Check Valve 6VDT4
Zoro Select

3/4" NPT Brass Swing Check Valve

Zoro # G3745944
Mfr # 6VDT4
product price:  $18.99
/ea
Milwaukee Valve 3" Flanged Cast Iron Swing Check Valve 2974-M 3
Milwaukee Valve

3" Flanged Cast Iron Swing Check Valve

Zoro # G0776587
Mfr # 2974-M 3
product price:  $394.03
/ea
Watts 1/2" Threaded Dual Check Valve LF7RU2-2
Watts

1/2" Threaded Dual Check Valve

Zoro # G7642910
Mfr # LF7RU2-2
product price:  $96.29
/ea
Smith-Cooper 2" Brass Inline Check Valve 4347003800
Smith-Cooper

2" Brass Inline Check Valve

Zoro # G6775933
Mfr # 4347003800
product price:  $69.29
/ea
Check Valves (3,500+ 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.

Related Categories

Ball ValvesSolenoid ValvesRelief ValvesValve PartsPVC Pipe Fittings
Black Pipe FittingsStainless Steel Pipe FittingsCamlock FittingsBrass Pipe FittingsPush-to-Connect Tube Fittings
plast-o-matic 2" ball valveflange mount check valve2" spring checkcheck valve cpvc 1/2"1" dual check valve
waste waterswagelok brassparker stainless steel filterzoeller quiet check valve1" bronze ball valve

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