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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)
    $5.59 each
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    $56.28 box of 12
    $4.69 each
    1,226
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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)
    $7.99 each
      Box Up & Save 16%  
    $80.28 box of 12
    $6.69 each
    2,102
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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)
    $12.19 each
      Box Up & Save 16%  
    $50.95 box of 5
    $10.19 each
    1,097
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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)
    $18.99 each
      Box Up & Save 17%  
    $63.16 box of 4
    $15.79 each
    220
    Wed, Jan 29
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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)
    $26.79 each
      Box Up & Save 17%  
    $111.45 box of 5
    $22.29 each
    374
    Wed, Jan 29
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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)
    $38.65 each
      Box Up & Save 17%  
    $96.45 box of 3
    $32.15 each
    267
    Wed, Jan 29
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    267 Wed, Jan 29
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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
    54
    Tue, Feb 4 – Thu, Feb 6
    54
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    54 Tue, Feb 4 – Thu, Feb 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
    Wed, Feb 12 – Wed, Feb 19
    Arrives
    Wed, Feb 12 – Wed, Feb 19
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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)
    $6.29 each
      Box Up & Save 17%  
    $62.28 box of 12
    $5.19 each
    1,590
    Wed, Jan 29
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    1,590 Wed, Jan 29
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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)
    $8.39 each
      Box Up & Save 17%  
    $83.88 box of 12
    $6.99 each
    2,296
    Wed, Jan 29
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    2,296 Wed, Jan 29
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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)
    $11.89 each
      Box Up & Save 17%  
    $98.90 box of 10
    $9.89 each
    1,085
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    1,085 Wed, Jan 29
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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)
    $19.59 each
      Box Up & Save 16%  
    $65.56 box of 4
    $16.39 each
    394
    Wed, Jan 29
    394
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    394 Wed, Jan 29
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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)
    $27.99 each
      Box Up & Save 17%  
    $116.45 box of 5
    $23.29 each
    483
    Wed, Jan 29
    483
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    483 Wed, Jan 29
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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)
    $38.39 each
      Box Up & Save 17%  
    $95.97 box of 3
    $31.99 each
    600
    Wed, Jan 29
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    600 Wed, Jan 29
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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
    10
    Wed, Jan 29
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    10 Wed, Jan 29
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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
    6
    Wed, Jan 29
    78
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    6 Wed, Jan 29
    72 Tue, Feb 4 – Thu, Feb 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
    Wed, Jan 29
    1
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    1 Wed, Jan 29
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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, Feb 12 – Wed, Feb 19
    Arrives
    Wed, Feb 12 – Wed, Feb 19
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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
    (31)
    $6.99 each
      Box Up & Save 16%  
    $58.90 box of 10
    $5.89 each
    99
    Wed, Jan 29
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    99 Wed, Jan 29
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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
    (31)
    $6.19 each
      Box Up & Save 16%  
    $77.85 box of 15
    $5.19 each
    4,003
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    4,003 Wed, Jan 29
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  • 3/4" Sweat Spring Loaded Check Valve, Lead Free Product Image
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    3/4" Sweat Spring Loaded Check Valve, Lead Free SLCS075 3/4" Sweat Spring Loaded Check Valve, Lead Free
    SKU: SLCS075
    Brand: Bluefin
    (31)
    $9.99 each
      Box Up & Save 15%  
    $84.90 box of 10
    $8.49 each
    2
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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
    (31)
    $9.19 each
      Box Up & Save 16%  
    $92.28 box of 12
    $7.69 each
    2,946
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    2,946 Wed, Jan 29
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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
    (31)
    $14.39 each
      Box Up & Save 15%  
    $73.14 box of 6
    $12.19 each
    42
    Wed, Jan 29
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    42 Wed, Jan 29
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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
    (31)
    $11.89 each
      Box Up & Save 17%  
    $98.90 box of 10
    $9.89 each
    2,802
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    2,802 Wed, Jan 29
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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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