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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
    (24)
    $5.59 each
    $56.28 box of 12
    $4.69 each
    643
    Mon, Oct 28
    643
    QtyArrives
    643 Mon, Oct 28
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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
    (24)
    $7.99 each
    $80.28 box of 12
    $6.69 each
    456
    Mon, Oct 28
    456
    QtyArrives
    456 Mon, Oct 28
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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
    (24)
    $12.19 each
    $50.95 box of 5
    $10.19 each
    299
    Mon, Oct 28
    299
    QtyArrives
    299 Mon, Oct 28
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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
    (24)
    $18.99 each
    $63.16 box of 4
    $15.79 each
    33
    Mon, Oct 28
    33
    QtyArrives
    33 Mon, Oct 28
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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
    (24)
    $26.79 each
    $111.45 box of 5
    $22.29 each
    126
    Mon, Oct 28
    126
    QtyArrives
    126 Mon, Oct 28
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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
    (24)
    $38.65 each
    $96.45 box of 3
    $32.15 each
    55
    Mon, Oct 28
    55
    QtyArrives
    55 Mon, Oct 28
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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
    65
    Wed, Oct 30 – Fri, Nov 1
    65
    QtyArrives
    65 Wed, Oct 30 – Fri, Nov 1
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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, Nov 8 – Fri, Nov 15
    Arrives
    Fri, Nov 8 – Fri, Nov 15
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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
    $62.28 box of 12
    $5.19 each
    280
    Mon, Oct 28
    280
    QtyArrives
    280 Mon, Oct 28
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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
    $83.88 box of 12
    $6.99 each
    631
    Mon, Oct 28
    631
    QtyArrives
    631 Mon, Oct 28
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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
    $98.90 box of 10
    $9.89 each
    254
    Mon, Oct 28
    254
    QtyArrives
    254 Mon, Oct 28
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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
    $65.56 box of 4
    $16.39 each
    271
    Mon, Oct 28
    271
    QtyArrives
    271 Mon, Oct 28
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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
    $116.45 box of 5
    $23.29 each
    86
    Mon, Oct 28
    86
    QtyArrives
    86 Mon, Oct 28
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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
    (24)
    $38.39 each
    $95.97 box of 3
    $31.99 each
    91
    Mon, Oct 28
    91
    QtyArrives
    91 Mon, Oct 28
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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
    (3)
    $87.99 each
    15
    Mon, Oct 28
    60
    QtyArrives
    15 Mon, Oct 28
    45 Wed, Oct 30 – Fri, Nov 1
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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
    3
    Mon, Oct 28
    34
    QtyArrives
    3 Mon, Oct 28
    31 Wed, Oct 30 – Fri, Nov 1
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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
    Mon, Oct 28
    1
    QtyArrives
    1 Mon, Oct 28
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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, Nov 8 – Fri, Nov 15
    Arrives
    Fri, Nov 8 – Fri, Nov 15
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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
    (28)
    $6.19 each
    $77.85 box of 15
    $5.19 each
    662
    Mon, Oct 28
    662
    QtyArrives
    662 Mon, Oct 28
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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
    (28)
    $6.99 each
    $58.90 box of 10
    $5.89 each
    165
    Mon, Oct 28
    165
    QtyArrives
    165 Mon, Oct 28
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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
    (28)
    $9.19 each
    $92.28 box of 12
    $7.69 each
    677
    Mon, Oct 28
    677
    QtyArrives
    677 Mon, Oct 28
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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
    (28)
    $9.99 each
    $84.90 box of 10
    $8.49 each
    209
    Mon, Oct 28
    209
    QtyArrives
    209 Mon, Oct 28
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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
    (28)
    $11.89 each
    $98.90 box of 10
    $9.89 each
    419
    Mon, Oct 28
    419
    QtyArrives
    419 Mon, Oct 28
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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
    (28)
    $14.39 each
    $73.14 box of 6
    $12.19 each
    169
    Mon, Oct 28
    169
    QtyArrives
    169 Mon, Oct 28
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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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