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Check Valves

  • 1/2" Solder Ends Swing Check Valve, Lead Free Product Image
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    1/2" Solder Ends Swing Check Valve, Lead Free SCS050 1/2" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS050
    Brand: Bluefin
    (25)
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  • 3/4" Solder Ends Swing Check Valve, Lead Free Product Image
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    3/4" Solder Ends Swing Check Valve, Lead Free SCS075 3/4" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS075
    Brand: Bluefin
    (25)
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  • 1" Solder Ends Swing Check Valve, Lead Free Product Image
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    1" Solder Ends Swing Check Valve, Lead Free SCS100 1" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS100
    Brand: Bluefin
    (25)
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  • 1-1/4" Solder Ends Swing Check Valve, Lead Free Product Image
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    1-1/4" Solder Ends Swing Check Valve, Lead Free SCS125 1-1/4" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS125
    Brand: Bluefin
    (25)
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  • 1-1/2" Solder Ends Swing Check Valve, Lead Free Product Image
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    1-1/2" Solder Ends Swing Check Valve, Lead Free SCS150 1-1/2" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS150
    Brand: Bluefin
    (25)
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    $111.45 box of 5
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  • 2" Solder Ends Swing Check Valve, Lead Free Product Image
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    2" Solder Ends Swing Check Valve, Lead Free SCS200 2" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS200
    Brand: Bluefin
    (25)
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    $38.65 each
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    $96.45 box of 3
    $32.15 each
    259
    Thu, Dec 26
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  • 3" Solder Ends Swing Check Valve, Lead Free Product Image
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    3" Solder Ends Swing Check Valve, Lead Free 210C003-NL 3" Solder Ends Swing Check Valve, Lead Free
    SKU: 210C003-NL
    Brand: Everflow
    $135.99 each
    59
    Thu, Jan 2 – Mon, Jan 6
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    59 Thu, Jan 2 – Mon, Jan 6
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  • 4" Solder Ends Swing Check Valve, Lead Free Product Image
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    4" Solder Ends Swing Check Valve, Lead Free 210C004-NL 4" Solder Ends Swing Check Valve, Lead Free
    SKU: 210C004-NL
    Brand: Everflow
    $194.99 each
    Fri, Jan 10 – Fri, Jan 17
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    Fri, Jan 10 – Fri, Jan 17
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  • 1/2" Threaded Swing Check Valve, Lead Free Product Image
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    1/2" Threaded Swing Check Valve, Lead Free SCT050 1/2" Threaded Swing Check Valve, Lead Free
    SKU: SCT050
    Brand: Bluefin
    (22)
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    $6.29 each
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    $62.28 box of 12
    $5.19 each
    1,359
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  • 3/4" Threaded Swing Check Valve, Lead Free Product Image
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    3/4" Threaded Swing Check Valve, Lead Free SCT075 3/4" Threaded Swing Check Valve, Lead Free
    SKU: SCT075
    Brand: Bluefin
    (22)
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    $8.39 each
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    $83.88 box of 12
    $6.99 each
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  • 1" Threaded Swing Check Valve, Lead Free Product Image
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    1" Threaded Swing Check Valve, Lead Free SCT100 1" Threaded Swing Check Valve, Lead Free
    SKU: SCT100
    Brand: Bluefin
    (22)
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    $11.89 each
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    $98.90 box of 10
    $9.89 each
    1,157
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  • 1-1/4" Threaded Swing Check Valve, Lead Free Product Image
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    1-1/4" Threaded Swing Check Valve, Lead Free SCT125 1-1/4" Threaded Swing Check Valve, Lead Free
    SKU: SCT125
    Brand: Bluefin
    (22)
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    $19.59 each
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    $65.56 box of 4
    $16.39 each
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  • 1-1/2" Threaded Swing Check Valve, Lead Free Product Image
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    1-1/2" Threaded Swing Check Valve, Lead Free SCT150 1-1/2" Threaded Swing Check Valve, Lead Free
    SKU: SCT150
    Brand: Bluefin
    (22)
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    $27.99 each
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    $116.45 box of 5
    $23.29 each
    508
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  • 2" Threaded Swing Check Valve, Lead Free Product Image
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    2" Threaded Swing Check Valve, Lead Free SCT200 2" Threaded Swing Check Valve, Lead Free
    SKU: SCT200
    Brand: Bluefin
    (25)
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    $38.39 each
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    $95.97 box of 3
    $31.99 each
    543
    Thu, Dec 26
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  • 2-1/2" Threaded Swing Check Valve, Lead Free Product Image
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    2-1/2" Threaded Swing Check Valve, Lead Free 210T212-NL 2-1/2" Threaded Swing Check Valve, Lead Free
    SKU: 210T212-NL
    Brand: Everflow
    (4)
    $87.99 each
    12
    Thu, Dec 26
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    12 Thu, Dec 26
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  • 3" Threaded Swing Check Valve, Lead Free Product Image
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    3" Threaded Swing Check Valve, Lead Free 210T003-NL 3" Threaded Swing Check Valve, Lead Free
    SKU: 210T003-NL
    Brand: Everflow
    $138.99 each
    4
    Thu, Dec 26
    106
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    4 Thu, Dec 26
    102 Thu, Jan 2 – Mon, Jan 6
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  • 4" Threaded Swing Check Valve, Lead Free Product Image
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    4" Threaded Swing Check Valve, Lead Free 210T004-NL 4" Threaded Swing Check Valve, Lead Free
    SKU: 210T004-NL
    Brand: Everflow
    $184.99 each
    1
    Thu, Dec 26
    1
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    1 Thu, Dec 26
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  • 3" Bronze Swing Check Valve Product Image
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    3" Bronze Swing Check Valve 61Y21001 3" Bronze Swing Check Valve
    SKU: 61Y21001
    Brand: Apollo Valves
    $745.99 each
    Fri, Jan 10 – Fri, Jan 17
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    Fri, Jan 10 – Fri, Jan 17
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  • 1/2" Sweat Spring Loaded Check Valve, Lead Free Product Image
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    1/2" Sweat Spring Loaded Check Valve, Lead Free SLCS050 1/2" Sweat Spring Loaded Check Valve, Lead Free
    SKU: SLCS050
    Brand: Bluefin
    (30)
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    $58.90 box of 10
    $5.89 each
    18
    Thu, Dec 26
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  • 1/2" Threaded Spring Loaded Check Valve,<br>Lead Free Product Image
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    1/2" Threaded Spring Loaded Check Valve, Lead Free SLCT050 1/2" Threaded Spring Loaded Check Valve, Lead Free
    SKU: SLCT050
    Brand: Bluefin
    (30)
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    $77.85 box of 15
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  • 3/4" Threaded Spring Loaded Check Valve,<br>Lead Free Product Image
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    3/4" Threaded Spring Loaded Check Valve, Lead Free SLCT075 3/4" Threaded Spring Loaded Check Valve, Lead Free
    SKU: SLCT075
    Brand: Bluefin
    (30)
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    $92.28 box of 12
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    3,145
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  • 3/4" C x C Bronze In-Line Check Valve, Lead Free (Spring Loaded) Product Image
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    3/4" C x C Bronze In-Line Check Valve, Lead Free (Spring Loaded) 525C04LF 3/4" C x C Bronze In-Line Check Valve, Lead Free (Spring Loaded)
    SKU: 525C04LF
    Brand: Matco-Norca
    (7)
    $12.99 each
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    $124.90 box of 10
    $12.49 each
    1
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  • 1" Sweat Spring Loaded Check Valve, Lead Free Product Image
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    1" Sweat Spring Loaded Check Valve, Lead Free SLCS100 1" Sweat Spring Loaded Check Valve, Lead Free
    SKU: SLCS100
    Brand: Bluefin
    (30)
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    $14.39 each
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    $73.14 box of 6
    $12.19 each
    61
    Thu, Dec 26
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    61 Thu, Dec 26
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  • 1" Threaded Spring Loaded Check Valve<br>Lead Free Product Image
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    1" Threaded Spring Loaded Check Valve Lead Free SLCT100 1" Threaded Spring Loaded Check Valve Lead Free
    SKU: SLCT100
    Brand: Bluefin
    (30)
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Resources

Articles

  • 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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