WATTS® 0009480 LFN45BM1-U-S Standard Capacity Pressure Reducing Valve, 3/4 in Nominal, Solder Union Inlet x FNPT Outlet End Style, 25 to 75 psi Pressure, Copper Silicon Alloy Body, Domestic

WALFN45BM1USI MFG #: 0009480
  • Country of Origin: US
  • Domestic/Import: Domestic
  • End Style: Solder Union Inlet x FNPT Outlet
  • Manufacturer Name: Watts Water Technologies
  • Media: Water
  • Nominal Size: 3/4 in
  • Pressure Range: 25 to 75 psi
  • Series: LFN45B, LFN45BM1-U-S
  • Softgoods Material: Thermoplastic Seat/Reinforced EPDM Diaphragm
  • Top to Inlet Center: 4-9/16 in
  • Type: Standard Capacity
This 3/4 in water pressure reducing valve is designed to reduce incoming water pressure to protect plumbing systems and reduce water consumption for commercial, industrial and residential applications. The easy maintenance assembly consists of a lead free cast copper silicon alloy construction, solder union inlet and FNPT outlet connection, stainless steel integral strainer, thermoplastic seat module, thermal expansion bypass and a sealed spring cage for waterworks pit installations. The temperature range is 33 to 180 deg F. Suitable for up to 400 psi, the pressure range can be adjusted from 25 to 75 psi with the standard setting at 50 psi.
  • Features and More


  • Integral stainless steel strainer removable for cleaning
  • Serviceable in line
  • Sealed spring cage on all models for accessible outdoor or pit installations
  • Bypass feature controls thermal expansion pressure
  • The wetted surface of this product contacted by consumable water contains less than one quarter of one percent (0.25%) of lead by weight
  • A water saving test program concluded that reducing the supply pressure from 80 to 50 psi resulted in a water savings of 30%
  • The bypass feature will not prevent the pressure relief valve from opening on the hot water supply system with pressure above 150 psi
  • 25 to 75 psi adjustable reduced pressure range
  • Elastomer disc
  • 50 psi standard reduced pressure


  • Commercial and Residential


  • ASSE 1003
  • ANSI A112.26.2
  • CSA B356
  • IAPMO Listed
  • NSF/ANSI 61-G
  • UPC Listed
  • PROP65: This product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm.


  • 1 year