1" N55B Water Pressure Reducing Valve (1 N55BU-M1) Zoom

1" N55B Water Pressure Reducing Valve (1 N55BU-M1)


Brand: Watts

0007713 has been discontinued.
Direct Replacement:
SKU: 0009970
Brand: Watts

Do not use this item for any installation or repair of potable water applications. This product does not comply with the "Safe Drinking Water Act," which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking). This item is for non-potable (non-human consumption) water applications only.




Size: 1"
Material: Bronze
Max Temp (F): 180°F
Min Temp (F): 33°F
Connection Type: Threaded
Min Pressure (PSI): 25
Max Pressure (PSI): 75

Description for Watts 0007713

Series N55B-M1 Water Pressure Reducing Valves are designed to reduce incoming water pressure to a sensible level to protect plumbing system components and reduce water consumption. This series is suitable for water supply pressures up to 400psi (27.6 bar) and may be adjusted from 25 to 75psi (172 to 517 kPa). The standard setting is 50psi (345 kPa). All parts are quickly and easily serviceable without removing the valve from the line. The standard bypass feature permits the flow of water back through the valve into the main when pressures, due to thermal expansion on the outlet side of the valve, exceed the pressure in the main supply.


  • Double union inlet & outlet connections (option DU)
  • Integral stainless steel strainer
  • Thermoplastic seat
  • Bronze body construction
  • Serviceable in line
  • Bypass feature controls thermal expansion pressure**
  • Sealed spring cage on all models for accessible outdoor or pit installations

    N55BU-M1 NPT threaded union inlet x NPT female outlet

  • 1" N55B Water Pressure Reducing Valve (1 N55BU-M1)


    by PowerReviews
    Watts1" N55B Water Pressure Reducing Valve (1 N55BU-M1)

    (based on 1 review)

    Ratings Distribution

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    • 1 Stars



    Reviewed by 1 customer

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    Good Replacement for Watts N35B

    By Big Dog

    from Pueblo West, CO

    Verified Buyer

    Comments about Watts 1" N55B Water Pressure Reducing Valve (1 N55BU-M1):

    Replaced old N35B regulator exactly. Is a much better easy to rebuild design as only front access is required to rebuild and rebuild kit replaces everything that can be replaced.

    If you are concerned about a very small amount of lead in your water for a very short time, you may want the lead free version which is twice the cost.

    • Was this a gift?:
    • No

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