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.
Reviewed by 1 customer
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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.