Check Valves

  • 1/2" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS050
    Brand: Bluefin
    (24)
    $5.55 each
    $55.80 box of 12
    $4.65 each
    745
    Wed, May 1
    745
    QtyArrives
    745 Wed, May 1
    Questions? Call 1-888-757-4774
  • 3/4" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS075
    Brand: Bluefin
    (24)
    $8.35 each
    $83.40 box of 12
    $6.95 each
    672
    Wed, May 1
    672
    QtyArrives
    672 Wed, May 1
    Questions? Call 1-888-757-4774
  • 1" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS100
    Brand: Bluefin
    (24)
    $12.75 each
    $53.25 box of 5
    $10.65 each
    439
    Wed, May 1
    439
    QtyArrives
    439 Wed, May 1
    Questions? Call 1-888-757-4774
  • 1-1/4" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS125
    Brand: Bluefin
    (24)
    $19.85 each
    $66.20 box of 4
    $16.55 each
    109
    Wed, May 1
    109
    QtyArrives
    109 Wed, May 1
    Questions? Call 1-888-757-4774
  • 1-1/2" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS150
    Brand: Bluefin
    (24)
    $27.95 each
    $116.25 box of 5
    $23.25 each
    124
    Wed, May 1
    124
    QtyArrives
    124 Wed, May 1
    Questions? Call 1-888-757-4774
  • 2" Solder Ends Swing Check Valve, Lead Free
    SKU: SCS200
    Brand: Bluefin
    (24)
    $38.65 each
    $96.45 box of 3
    $32.15 each
    13
    Wed, May 1
    13
    QtyArrives
    13 Wed, May 1
    Questions? Call 1-888-757-4774
  • 3" Solder Ends Swing Check Valve, Lead Free
    SKU: 210C003-NL
    Brand: Everflow
    $129.95 each
    Wed, May 15 – Wed, May 22
    Arrives
    Wed, May 15 – Wed, May 22
    Questions? Call 1-888-757-4774 or LiveChat Img Live Chat
  • 4" Solder Ends Swing Check Valve, Lead Free
    SKU: 210C004-NL
    Brand: Everflow
    $194.95 each
    Wed, May 15 – Wed, May 22
    Arrives
    Wed, May 15 – Wed, May 22
    Questions? Call 1-888-757-4774 or LiveChat Img Live Chat
  • 1/2" Threaded Swing Check Valve, Lead Free
    SKU: SCT050
    Brand: Bluefin
    (19)
    $6.25 each
    $61.80 box of 12
    $5.15 each
    450
    Wed, May 1
    450
    QtyArrives
    450 Wed, May 1
    Questions? Call 1-888-757-4774
  • 3/4" Threaded Swing Check Valve, Lead Free
    SKU: SCT075
    Brand: Bluefin
    (19)
    $8.75 each
    $87.00 box of 12
    $7.25 each
    416
    Wed, May 1
    416
    QtyArrives
    416 Wed, May 1
    Questions? Call 1-888-757-4774
  • 1" Threaded Swing Check Valve, Lead Free
    SKU: SCT100
    Brand: Bluefin
    (19)
    $12.35 each
    $102.50 box of 10
    $10.25 each
    222
    Wed, May 1
    222
    QtyArrives
    222 Wed, May 1
    Questions? Call 1-888-757-4774
  • 1-1/4" Threaded Swing Check Valve, Lead Free
    SKU: SCT125
    Brand: Bluefin
    (19)
    $19.55 each
    $65.40 box of 4
    $16.35 each
    130
    Wed, May 1
    130
    QtyArrives
    130 Wed, May 1
    Questions? Call 1-888-757-4774
  • 1-1/2" Threaded Swing Check Valve, Lead Free
    SKU: SCT150
    Brand: Bluefin
    (19)
    $27.95 each
    $116.25 box of 5
    $23.25 each
    140
    Wed, May 1
    140
    QtyArrives
    140 Wed, May 1
    Questions? Call 1-888-757-4774
  • 2" Threaded Swing Check Valve, Lead Free
    SKU: SCT200
    Brand: Bluefin
    (24)
    $38.35 each
    $95.85 box of 3
    $31.95 each
    101
    Wed, May 1
    101
    QtyArrives
    101 Wed, May 1
    Questions? Call 1-888-757-4774
  • 2-1/2" Threaded Swing Check Valve, Lead Free
    SKU: 210T212-NL
    Brand: Everflow
    (3)
    $83.45 each
    109
    Mon, May 6 – Wed, May 8
    109
    QtyArrives
    109 Mon, May 6 – Wed, May 8
    Questions? Call 1-888-757-4774
  • 3" Threaded Swing Check Valve, Lead Free
    SKU: 210T003-NL
    Brand: Everflow
    $129.95 each
    13
    Wed, May 1
    77
    QtyArrives
    13 Wed, May 1
    64 Mon, May 6 – Wed, May 8
    Questions? Call 1-888-757-4774
  • 4" Threaded Swing Check Valve, Lead Free
    SKU: 210T004-NL
    Brand: Everflow
    $194.95 each
    1
    Wed, May 1
    1
    QtyArrives
    1 Wed, May 1
    Questions? Call 1-888-757-4774
  • 1/2" Press Swing Check Valve (Lead Free)
    SKU: 400R012-NL
    Brand: Everflow
    $17.95 each
    $82.45 box of 5
    $16.49 each
    25
    Wed, May 1
    225
    QtyArrives
    25 Wed, May 1
    200 Mon, May 6 – Wed, May 8
    Questions? Call 1-888-757-4774
  • 3/4" Press Swing Check Valve (Lead Free)
    SKU: 400R034-NL
    Brand: Everflow
    $22.65 each
    $104.75 box of 5
    $20.95 each
    36
    Wed, May 1
    456
    QtyArrives
    36 Wed, May 1
    420 Mon, May 6 – Wed, May 8
    Questions? Call 1-888-757-4774
  • 1" Press Swing Check Valve (Lead Free)
    SKU: 400R001-NL
    Brand: Everflow
    $29.95 each
    $139.25 box of 5
    $27.85 each
    44
    Wed, May 1
    122
    QtyArrives
    44 Wed, May 1
    78 Mon, May 6 – Wed, May 8
    Questions? Call 1-888-757-4774
  • 1-1/4" Press Swing Check Valve (Lead Free)
    SKU: 400R114-NL
    Brand: Everflow
    $46.45 each
    $212.75 box of 5
    $42.55 each
    6
    Wed, May 1
    105
    QtyArrives
    6 Wed, May 1
    99 Mon, May 6 – Wed, May 8
    Questions? Call 1-888-757-4774
  • 1-1/2" Press Swing Check Valve (Lead Free)
    SKU: 400R112-NL
    Brand: Everflow
    $59.95 each
    $280.95 box of 5
    $56.19 each
    8
    Wed, May 1
    8
    QtyArrives
    8 Wed, May 1
    Questions? Call 1-888-757-4774
  • 2" Press Swing Check Valve (Lead Free)
    SKU: 400R002-NL
    Brand: Everflow
    $97.85 each
    $179.30 box of 2
    $89.65 each
    3
    Wed, May 1
    3
    QtyArrives
    3 Wed, May 1
    Questions? Call 1-888-757-4774
  • 1-1/2" Threaded Swing Check Valve, Lead Free
    SKU: 210T112-NL
    Brand: Everflow
    (3)
    $27.95 each
    $123.75 box of 5
    $24.75 each
    7
    Wed, May 1
    7
    QtyArrives
    7 Wed, May 1
    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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