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  • 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
    (29)
    $5.59 each
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    $56.28 box of 12
    $4.69 each
    616
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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
    (29)
    $7.99 each
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    $80.28 box of 12
    $6.69 each
    1,334
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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
    (29)
    $12.19 each
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    $50.95 box of 5
    $10.19 each
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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
    (29)
    $18.99 each
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    $63.16 box of 4
    $15.79 each
    222
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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
    (29)
    $26.79 each
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    $111.45 box of 5
    $22.29 each
    265
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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
    (29)
    $38.65 each
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    $96.45 box of 3
    $32.15 each
    268
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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
    2
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    35
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    33 Tue, Nov 10 – Thu, Nov 12
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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
    Wed, Nov 18 – Wed, Nov 25
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    Wed, Nov 18 – Wed, Nov 25
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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
    (23)
    $6.29 each
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    $62.28 box of 12
    $5.19 each
    1,141
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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
    (23)
    $8.39 each
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    $83.88 box of 12
    $6.99 each
    1,252
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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
    (23)
    $11.89 each
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    $98.90 box of 10
    $9.89 each
    1,029
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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
    (23)
    $19.59 each
      Box Up & Save 16%  
    $65.56 box of 4
    $16.39 each
    83
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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
    (23)
    $27.99 each
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    $116.45 box of 5
    $23.29 each
    278
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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
    (29)
    $38.39 each
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    $95.97 box of 3
    $31.99 each
    802
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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
    (5)
    $87.99 each
    5
    Wed, Nov 4
    78
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    5 Wed, Nov 4
    73 Tue, Nov 10 – Thu, Nov 12
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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
    7
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  • 3/4" LFWCV Lead Free Brass Swing Check Valve Product Image
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    3/4" LFWCV Lead Free Brass Swing Check Valve 0123495 3/4" LFWCV Lead Free Brass Swing Check Valve
    SKU: 0123495
    Brand: Watts
    (1)
    $13.99 each
      Box Up & Save 4%  
    $133.90 box of 10
    $13.39 each
    23
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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
    $188.69 each
    Wed, Nov 18 – Wed, Nov 25
    Arrives
    Wed, Nov 18 – Wed, Nov 25
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  • 1/2" LFWCV Lead Free Brass Swing Check Valve Product Image
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    1/2" LFWCV Lead Free Brass Swing Check Valve 0123494 1/2" LFWCV Lead Free Brass Swing Check Valve
    SKU: 0123494
    Brand: Watts
    $10.49 each
    17
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    17
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  • 1/2" Press Swing Check Valve (Lead Free)  Product Image
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    1/2" Press Swing Check Valve (Lead Free) PRSC050 1/2" Press Swing Check Valve (Lead Free)
    SKU: PRSC050
    Brand: Bluefin
    $17.95 each
      Box Up & Save 8%  
    $82.45 box of 5
    $16.49 each
    244
    Wed, Nov 4
    244
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  • 3/4" Press Swing Check Valve (Lead Free)  Product Image
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    3/4" Press Swing Check Valve (Lead Free) PRSC075 3/4" Press Swing Check Valve (Lead Free)
    SKU: PRSC075
    Brand: Bluefin
    $22.65 each
      Box Up & Save 8%  
    $104.75 box of 5
    $20.95 each
    285
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  • 1" Press Swing Check Valve (Lead Free)  Product Image
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    1" Press Swing Check Valve (Lead Free) PRSC100 1" Press Swing Check Valve (Lead Free)
    SKU: PRSC100
    Brand: Bluefin
    $29.95 each
      Box Up & Save 7%  
    $139.25 box of 5
    $27.85 each
    43
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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
    $640.31 each
    Wed, Nov 18 – Wed, Nov 25
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    Wed, Nov 18 – Wed, Nov 25
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  • 1/2" Copper Press Swing Check Valve (Lead Free) Product Image
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    1/2" Copper Press Swing Check Valve (Lead Free) NF7400X6 1/2" Copper Press Swing Check Valve (Lead Free)
    SKU: NF7400X6
    Brand: Nibco
    $114.99 each
    Fri, Nov 13 – Wed, Nov 18
    Arrives
    Fri, Nov 13 – Wed, Nov 18
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FAQs, Manuals & Videos

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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