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Check Valves

  • 1/2" Solder Ends Swing Check Valve, Lead Free Product Image
    1/2" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS050
    Brand: Bluefin
    (25)
    $5.59 each
    $56.28 box of 12
    $4.69 each
    651
    Tue, Sep 3
    651
    QtyArrives
    651 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 3/4" Solder Ends Swing Check Valve, Lead Free Product Image
    3/4" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS075
    Brand: Bluefin
    (25)
    $7.99 each
    $80.28 box of 12
    $6.69 each
    451
    Tue, Sep 3
    451
    QtyArrives
    451 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 1" Solder Ends Swing Check Valve, Lead Free Product Image
    1" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS100
    Brand: Bluefin
    (25)
    $12.19 each
    $50.95 box of 5
    $10.19 each
    201
    Tue, Sep 3
    201
    QtyArrives
    201 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 1-1/4" Solder Ends Swing Check Valve, Lead Free Product Image
    $18.99 each
    $63.16 box of 4
    $15.79 each
    47
    Tue, Sep 3
    47
    QtyArrives
    47 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 1-1/2" Solder Ends Swing Check Valve, Lead Free Product Image
    $26.79 each
    $111.45 box of 5
    $22.29 each
    84
    Tue, Sep 3
    84
    QtyArrives
    84 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 2" Solder Ends Swing Check Valve, Lead Free Product Image
    2" Solder Ends Swing Check Valve, Lead Free
    SKU: 210C002-NL
    Brand: Everflow
    (3)
    $38.99 each
    $111.87 box of 3
    $37.29 each
    6
    Tue, Sep 3
    606
    QtyArrives
    6 Tue, Sep 3
    600 Fri, Sep 6 – Tue, Sep 10
    Questions? Call 1-888-757-4774
  • 3" Solder Ends Swing Check Valve, Lead Free Product Image
    3" Solder Ends Swing Check Valve, Lead Free
    SKU: 210C003-NL
    Brand: Everflow
    $135.99 each
    78
    Fri, Sep 6 – Tue, Sep 10
    78
    QtyArrives
    78 Fri, Sep 6 – Tue, Sep 10
    Questions? Call 1-888-757-4774
  • 4" Solder Ends Swing Check Valve, Lead Free Product Image
    4" Solder Ends Swing Check Valve, Lead Free
    SKU: 210C004-NL
    Brand: Everflow
    $194.99 each
    Tue, Sep 17 – Tue, Sep 24
    Arrives
    Tue, Sep 17 – Tue, Sep 24
    Questions? Call 1-888-757-4774 or
  • 1/2" Threaded Swing Check Valve, Lead Free Product Image
    1/2" Threaded Swing Check Valve, Lead Free
    SKU: SCT050
    Brand: Bluefin
    (21)
    $6.29 each
    $62.28 box of 12
    $5.19 each
    199
    Tue, Sep 3
    199
    QtyArrives
    199 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 3/4" Threaded Swing Check Valve, Lead Free Product Image
    3/4" Threaded Swing Check Valve, Lead Free
    SKU: SCT075
    Brand: Bluefin
    (21)
    $8.39 each
    $83.88 box of 12
    $6.99 each
    360
    Tue, Sep 3
    360
    QtyArrives
    360 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 1" Threaded Swing Check Valve, Lead Free Product Image
    1" Threaded Swing Check Valve, Lead Free
    SKU: SCT100
    Brand: Bluefin
    (21)
    $11.89 each
    $98.90 box of 10
    $9.89 each
    179
    Tue, Sep 3
    179
    QtyArrives
    179 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 1-1/4" Threaded Swing Check Valve, Lead Free Product Image
    1-1/4" Threaded Swing Check Valve, Lead Free
    SKU: SCT125
    Brand: Bluefin
    (21)
    $19.59 each
    $65.56 box of 4
    $16.39 each
    120
    Tue, Sep 3
    120
    QtyArrives
    120 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 1-1/2" Threaded Swing Check Valve, Lead Free Product Image
    1-1/2" Threaded Swing Check Valve, Lead Free
    SKU: SCT150
    Brand: Bluefin
    (21)
    $27.99 each
    $116.45 box of 5
    $23.29 each
    127
    Tue, Sep 3
    127
    QtyArrives
    127 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 2" Threaded Swing Check Valve, Lead Free Product Image
    2" Threaded Swing Check Valve, Lead Free
    SKU: SCT200
    Brand: Bluefin
    (25)
    $38.39 each
    $95.97 box of 3
    $31.99 each
    97
    Tue, Sep 3
    97
    QtyArrives
    97 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 2-1/2" Threaded Swing Check Valve, Lead Free Product Image
    2-1/2" Threaded Swing Check Valve, Lead Free
    SKU: 210T212-NL
    Brand: Everflow
    (3)
    $87.99 each
    11
    Tue, Sep 3
    71
    QtyArrives
    11 Tue, Sep 3
    60 Fri, Sep 6 – Tue, Sep 10
    Questions? Call 1-888-757-4774
  • 3" Threaded Swing Check Valve, Lead Free Product Image
    3" Threaded Swing Check Valve, Lead Free
    SKU: 210T003-NL
    Brand: Everflow
    $138.99 each
    1
    Tue, Sep 3
    68
    QtyArrives
    1 Tue, Sep 3
    67 Fri, Sep 6 – Tue, Sep 10
    Questions? Call 1-888-757-4774
  • 4" Threaded Swing Check Valve, Lead Free Product Image
    4" Threaded Swing Check Valve, Lead Free
    SKU: 210T004-NL
    Brand: Everflow
    $184.99 each
    1
    Tue, Sep 3
    1
    QtyArrives
    1 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 3" Bronze Swing Check Valve Product Image
    3" Bronze Swing Check Valve
    SKU: 61Y21001
    Brand: Apollo Valves
    $745.99 each
    Tue, Sep 17 – Tue, Sep 24
    Arrives
    Tue, Sep 17 – Tue, Sep 24
    Questions? Call 1-888-757-4774 or
  • 1/2" Threaded Spring Loaded Check Valve,<br>Lead Free Product Image
    $6.19 each
    $77.85 box of 15
    $5.19 each
    320
    Tue, Sep 3
    320
    QtyArrives
    320 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 1/2" Sweat Spring Loaded Check Valve, Lead Free Product Image
    1/2" Sweat Spring Loaded Check Valve, Lead Free
    SKU: SLCS050
    Brand: Bluefin
    (29)
    $6.99 each
    $58.90 box of 10
    $5.89 each
    225
    Tue, Sep 3
    225
    QtyArrives
    225 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 3/4" Threaded Spring Loaded Check Valve,<br>Lead Free Product Image
    $9.19 each
    $92.28 box of 12
    $7.69 each
    843
    Tue, Sep 3
    843
    QtyArrives
    843 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 3/4" Sweat Spring Loaded Check Valve, Lead Free Product Image
    3/4" Sweat Spring Loaded Check Valve, Lead Free
    SKU: SLCS075
    Brand: Bluefin
    (29)
    $9.99 each
    $84.90 box of 10
    $8.49 each
    331
    Tue, Sep 3
    331
    QtyArrives
    331 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 1" Threaded Spring Loaded Check Valve<br>Lead Free Product Image
    1" Threaded Spring Loaded Check Valve Lead Free
    SKU: SLCT100
    Brand: Bluefin
    (29)
    $11.89 each
    $98.90 box of 10
    $9.89 each
    649
    Tue, Sep 3
    649
    QtyArrives
    649 Tue, Sep 3
    Questions? Call 1-888-757-4774
  • 1" Sweat Spring Loaded Check Valve, Lead Free Product Image
    1" Sweat Spring Loaded Check Valve, Lead Free
    SKU: SLCS100
    Brand: Bluefin
    (29)
    $14.39 each
    $73.14 box of 6
    $12.19 each
    212
    Tue, Sep 3
    212
    QtyArrives
    212 Tue, Sep 3
    Questions? Call 1-888-757-4774

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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