Check Valves
Lead Content Warning
Do not use this item for any installation or repair of potable water applications. This product does not comply with the "Safe Drinking Water Act," which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking). This item is for non-potable (non-human consumption) water applications only.
Lead Content Warning
This product does not comply with the Safe Drinking Water Act, which requires that products used in any system providing water for human consumption (drinking or cooking) to meet low-lead standards. Please check the box below to confirm you are aware that this item is for non-potable water applications only.
You must agree to this statement in order to purchase this product.
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1/2" Solder Ends Swing Check Valve, Lead FreeSKU: SCS050Brand: Bluefin
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3/4" Solder Ends Swing Check Valve, Lead FreeSKU: SCS075Brand: Bluefin(25) -
1" Solder Ends Swing Check Valve, Lead FreeSKU: SCS100Brand: Bluefin(25) -
![1-1/4" Solder Ends Swing Check Valve, Lead Free Product Image]()
1-1/4" Solder Ends Swing Check Valve, Lead FreeSKU: SCS125Brand: Bluefin(25) -
![1-1/2" Solder Ends Swing Check Valve, Lead Free Product Image]()
1-1/2" Solder Ends Swing Check Valve, Lead FreeSKU: SCS150Brand: Bluefin(25) -
![2" Solder Ends Swing Check Valve, Lead Free Product Image]()
2" Solder Ends Swing Check Valve, Lead FreeSKU: 210C002-NLBrand: Everflow(3)6Tue, Sep 3 -
![3" Solder Ends Swing Check Valve, Lead Free Product Image]()
3" Solder Ends Swing Check Valve, Lead FreeSKU: 210C003-NLBrand: Everflow78Fri, Sep 6 – Tue, Sep 10 -
![4" Solder Ends Swing Check Valve, Lead Free Product Image]()
4" Solder Ends Swing Check Valve, Lead FreeSKU: 210C004-NLBrand: Everflow -
![1/2" Threaded Swing Check Valve, Lead Free Product Image]()
1/2" Threaded Swing Check Valve, Lead FreeSKU: SCT050Brand: Bluefin(21) -
![3/4" Threaded Swing Check Valve, Lead Free Product Image]()
3/4" Threaded Swing Check Valve, Lead FreeSKU: SCT075Brand: Bluefin(21) -
![1" Threaded Swing Check Valve, Lead Free Product Image]()
1" Threaded Swing Check Valve, Lead FreeSKU: SCT100Brand: Bluefin(21) -
![1-1/4" Threaded Swing Check Valve, Lead Free Product Image]()
1-1/4" Threaded Swing Check Valve, Lead FreeSKU: SCT125Brand: Bluefin(21) -
![1-1/2" Threaded Swing Check Valve, Lead Free Product Image]()
1-1/2" Threaded Swing Check Valve, Lead FreeSKU: SCT150Brand: Bluefin(21) -
![2" Threaded Swing Check Valve, Lead Free Product Image]()
2" Threaded Swing Check Valve, Lead FreeSKU: SCT200Brand: Bluefin(25) -
![2-1/2" Threaded Swing Check Valve, Lead Free Product Image]()
2-1/2" Threaded Swing Check Valve, Lead FreeSKU: 210T212-NLBrand: Everflow(3)11Tue, Sep 3 -
![3" Threaded Swing Check Valve, Lead Free Product Image]()
3" Threaded Swing Check Valve, Lead FreeSKU: 210T003-NLBrand: Everflow -
![4" Threaded Swing Check Valve, Lead Free Product Image]()
4" Threaded Swing Check Valve, Lead FreeSKU: 210T004-NLBrand: Everflow -
![3" Bronze Swing Check Valve Product Image]()
3" Bronze Swing Check ValveSKU: 61Y21001Brand: Apollo Valves -
![1/2" Threaded Spring Loaded Check Valve,<br>Lead Free Product Image]()
1/2" Threaded Spring Loaded Check Valve, Lead FreeSKU: SLCT050Brand: Bluefin(29) -
![1/2" Sweat Spring Loaded Check Valve, Lead Free Product Image]()
1/2" Sweat Spring Loaded Check Valve, Lead FreeSKU: SLCS050Brand: Bluefin(29) -
![3/4" Threaded Spring Loaded Check Valve,<br>Lead Free Product Image]()
3/4" Threaded Spring Loaded Check Valve, Lead FreeSKU: SLCT075Brand: Bluefin(29) -
![3/4" Sweat Spring Loaded Check Valve, Lead Free Product Image]()
3/4" Sweat Spring Loaded Check Valve, Lead FreeSKU: SLCS075Brand: Bluefin(29) -
![1" Threaded Spring Loaded Check Valve<br>Lead Free Product Image]()
1" Threaded Spring Loaded Check Valve Lead FreeSKU: SLCT100Brand: Bluefin(29) -
![1" Sweat Spring Loaded Check Valve, Lead Free Product Image]()
1" Sweat Spring Loaded Check Valve, Lead FreeSKU: SLCS100Brand: Bluefin(29) -
![1-1/4" Threaded Spring Loaded Check Valve,<br>Lead Free Product Image]()
1-1/4" Threaded Spring Loaded Check Valve, Lead FreeSKU: SLCT125Brand: Bluefin(29) -
![1-1/4" Sweat Spring Loaded Check Valve, Lead Free Product Image]()
1-1/4" Sweat Spring Loaded Check Valve, Lead FreeSKU: SLCS125Brand: Bluefin(29) -
![1-1/2" Sweat Spring Loaded Check Valve, Lead Free Product Image]()
1-1/2" Sweat Spring Loaded Check Valve, Lead FreeSKU: SLCS150Brand: Bluefin(29) -
![1-1/2" Threaded Spring Loaded Check Valve,<br>Lead Free Product Image]()
1-1/2" Threaded Spring Loaded Check Valve, Lead FreeSKU: SLCT150Brand: Bluefin(29) -
![2" Sweat Spring Loaded Check Valve, Lead Free Product Image]()
2" Sweat Spring Loaded Check Valve, Lead FreeSKU: SLCS200Brand: Bluefin(29) -
![2" Threaded Spring Loaded Check Valve, Lead Free Product Image]()
2" Threaded Spring Loaded Check Valve, Lead FreeSKU: SLCT200Brand: Bluefin(29)
Resources
Articles
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More About Check Valves (Swing Check)
A check valve ensures that water only flows in a single direction of a plumbing system. This prevents contaminated water from flowing back into the system once it has been used. The most common type of check valve is the swing check. A swing check is a type of valve that contains a hinged panel that opens and closes as liquid flows through it. When liquid enters a swing check, pressure increases and the hinged panel is lifted. This allows the liquid to flow through and exit the system. The check valve's hinge serves as a one way street and liquid cannot flow through in the opposing direction.
The average home plumbing system operates between 35 to 55 psi, depending on the pressure regulator's setting. If the street pressure falls below the house pressure, water will flow back into the city system. A check valve prevents this from happening. Check valves are also commonly used in sump, pond, and sewage pump applications. They are also used in closed loop solar applications to prevent thermal siphoning. Check valves should be installed horizontally in a plumbing system.
If vertical installation is required, a Spring Loaded Check Valve is recommended.
Hydrovalve check valves are available in two standard connection types: Female Threaded (IPS) or Sweat (CxC). 1/2" and 3/4" check valves are the most common sizes sold on our website, however sizes are available from 1/2" to 4".
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