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    4" Stainless Steel Vacuum Breaker Check Valve, Threaded In-Line - BSSV6 Style

    4" Stainless Steel Vacuum Breaker Check Valve, Threaded In-Line - BSSV6 Style

    INL-040ca3

    Protect pressure vessels with this 4" Stainless Steel Vacuum Breaker Check Valve. Prevent condensate back-up and water hammer effects. Stainless steel construction, versatile installation, and complies with ANSI, MSS, ASTM standards.

    $199.99
    $199.99
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    4" Stainless Steel Vacuum Breaker Check Valve, Threaded In-Line - BSSV6 Style

    4" Stainless Steel Vacuum Breaker Check Valve, Threaded In-Line - BSSV6 Style

    $199.99

    Quantity: 1

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    4" Stainless Steel Vacuum Breaker Check Valve, Threaded In-Line - BSSV6 Style

    4" Stainless Steel Vacuum Breaker Check Valve, Threaded In-Line - BSSV6 Style

    $199.99

    Quantity: 1

    Delivery via Maden

    Expect your order to arrive on time.

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    The 4" 316 SS BSSV6 Style Vacuum Breaker Threaded In-Line Check Valve by DFT® offers reliable protection against pressure vessel collapse and condensate back-up. This valve is designed to break siphons, prevent pipe collapse, and mitigate water hammer effects. Featuring stainless steel construction, spring-assisted silent closing, horizontal or vertical installation, and a lapped disc & seat for tight shut-off, this valve is versatile and easy to maintain. With a nominal size of 4.00 inches, cracking pressure of 0.1 psi, and compliance with ANSI, MSS, and ASTM standards, this valve is ideal for antisiphon applications, boiler feed systems, sterilizing chambers, and more.

    Product Specifications

    Application 0
    Antisiphon Applications | Boiler Feed & Discharge | Heat Exchangers | Irrigation System | Jacketed Pans | Steam Coils | Steam Mains | Steam Systems | Sterilizing Chambers | Storage Ressels | Tanks
    Available Soft Seat Materials Available Soft Seat Materials
    Buna-N (-70 to 250ºF) | EPDM (-75 to 300ºF) | TFE®-Viton® (-40 to 400ºF) | Viton® (-40 to 400ºF) | Zelon® (37 to 470ºF)
    Codes And Standards Ansi
    B1.20.1
    Codes And Standards Astm
    303 SS not acceptable for CRN
    Codes And Standards Mss
    SP-25
    Features 0
    1" to 4" size450 to 6000 CWPThreaded O.D. (MNPT)Unthreaded inlet boreStainless Steel ConstructionSpring-assisted silent closingHorizontal or vertical installationTight shut-off - lapped disc & seatEasy maintenanceVersatile
    Materials Of Construction Disc
    316 SS
    Materials Of Construction Guard
    CF8M
    Materials Of Construction Retaining Ring
    316 SS
    Materials Of Construction Seat
    316 SS
    Materials Of Construction Spring
    316 SS
    Options 0
    Inconel® 750 SpringSoft seat
    Specifications Approx Net Weight Each
    7.00 lb | 3.2 kg
    Specifications Cold Working Pressure
    0 psig | 450 psig | 0 barg | 31.0 barg
    Specifications Cv
    90
    Specifications Ends
    NPT (Threaded)
    Specifications Friction Loss Feet Of Pipe
    16
    Specifications Friction Loss Meter Of Pipe
    4.9
    Specifications Nominal Size Mnpt A
    4.00 in
    Specifications Series
    Vacuum Breaker
    Specifications Size
    4.00 in | DN 100
    Specifications Style
    BSSV6
    Specifications Unthreaded Inlet Bore B
    2.22 in | 56 mm
    Specifications Valve Cracking Pressure
    0.1 psi | 0.007 bar | 2.6 in.water | 66 mm.water | 4.8 mmHg
    Specifications Valve Cracking Pressure Tolerance
    ±10%