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    Block & Bleed Needle Valves

    Big Bear Instruments offers Block & Bleed Needle Valves in both hard seat and soft seat options. The block valve isolates the downstream process fluids, and the bleed valve exhausts upstream fluids, enabling instruments to be removed without disturbing the permanent piping installation.  Sort by manufacturer, series, connection, body material, or item type to find the best valve for your application.

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    Noshok 602-MFC Hard Seat Standard Needle Valve

    602-MFC
    • Seat: Hard Seat
    • Connection: 1/4" NPT
    • Type: Male-Female
    • Valve Material: Steel
    $75.99

    Noshok 602-MFS Hard Seat Standard Needle Valve

    602-MFS
    • Seat: Hard Seat
    • Connection: 1/4" NPT
    • Type: Male-Female
    • Valve Material: Stainless Steel
    $166.99

    Noshok 604-FFC Hard Seat Standard Needle Valve

    604-FFC
    • Seat: Hard Seat
    • Connection: 1/2" NPT
    • Type: Female-Female
    • Valve Material: Steel
    $74.99

    Noshok 604-FFS Hard Seat Standard Needle Valve

    604-FFS
    • Seat: Hard Seat
    • Connection: 1/2" NPT
    • Type: Female-Female
    • Valve Material: Stainless Steel
    $161.99

    Noshok 604-MFC Hard Seat Standard Needle Valve

    604-MFC
    • Seat: Hard Seat
    • Connection: 1/2" NPT
    • Type: Male-Female
    • Valve Material: Steel
    $75.99

    Noshok 604-MFS Hard Seat Standard Needle Valve

    604-MFS
    • Seat: Hard Seat
    • Connection: 1/2" NPT
    • Type: Male-Female
    • Valve Material: Stainless Steel
    $125.17

    Noshok 702-FFC Soft Seat Standard Needle Valve

    702-FFC
    • Seat: Soft Seat
    • Connection: 1/4" NPT
    • Type: Female-Female
    • Valve Material: Steel
    $67.99

    Noshok 702-FFS Soft Seat Standard Needle Valve

    702-FFS
    • Seat: Soft Seat
    • Connection: 1/4" NPT
    • Type: Female-Female
    • Valve Material: Stainless Steel
    $134.99

    Noshok 702-MFC Soft Seat Standard Needle Valve

    702-MFC
    • Seat: Soft Seat
    • Connection: 1/4" NPT
    • Type: Male-Female
    • Valve Material: Steel
    $71.99

    Noshok 702-MFS Soft Seat Standard Needle Valve

    702-MFS
    • Seat: Soft Seat
    • Connection: 1/4" NPT
    • Type: Male-Female
    • Valve Material: Stainless Steel
    $167.99

    Noshok 704-FFC Soft Seat Standard Needle Valve

    704-FFC
    • Seat: Soft Seat
    • Connection: 1/2" NPT
    • Type: Female-Female
    • Valve Material: Steel
    $71.99

    Noshok 704-FFS Soft Seat Standard Needle Valve

    704-FFS
    • Seat: Soft Seat
    • Connection: 1/2" NPT
    • Type: Female-Female
    • Valve Material: Stainless Steel
    $149.99

    Noshok 704-MFC Soft Seat Standard Needle Valve

    704-MFC
    • Seat: Soft Seat
    • Connection: 1/2" NPT
    • Type: Male-Female
    • Valve Material: Steel
    $77.99

    Noshok 704-MFS Soft Seat Standard Needle Valve

    704-MFS
    • Seat: Soft Seat
    • Connection: 1/2" NPT
    • Type: Male-Female
    • Valve Material: Stainless Steel
    $182.99

    Noshok 802-MB Hard Seat Bleed Needle Valve

    802-MB
    • Seat: Hard Seat
    • Connection: 1/4" NPT Male
    • Valve Material: Brass
    $51.17

    Noshok 802-MC Hard Seat Bleed Needle Valve

    802-MC
    • Seat: Hard Seat
    • Connection: 1/4" NPT Male
    • Valve Material: Steel
    $40.47

    Noshok 802-MS Hard Seat Bleed Needle Valve

    802-MS
    • Seat: Hard Seat
    • Connection: 1/4" NPT Male
    • Valve Material: Stainless Steel
    $51.38

    Noshok 804-MC Hard Seat Bleed Needle Valve

    804-MC
    • Seat: Hard Seat
    • Connection: 1/2" NPT Male
    • Valve Material: Steel
    $46.19

    Noshok 804-MS Hard Seat Bleed Needle Valve

    804-MS
    • Seat: Hard Seat
    • Connection: 1/2" NPT Male
    • Valve Material: Stainless Steel
    $56.99

    Noshok 852-MC Soft Tip Bleed Needle Valve

    852-MC
    • Seat: Soft Tip
    • Connection: 1/4" NPT Male
    • Valve Material: Steel
    $45.99
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