Skip to main content
Watts None
Watts Link

Watts 3/4 IN Lead Free Copper Silicon Water Pressure Reducing Valve, NPT Union x FPT, Adjust 25-75 psi, Max Work 400 psi

SKU: 0009478

Call For Price!

Questions About Watts 0009478?
Sierra Plumbing Supply has professionals available to assist you with your selection from Watts.
Email an Expert

Product Details

Watts 0009478

This 3/4'' lead free 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 body construction, NPT threaded union inlet and NPT female 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 (0.5 to 82 deg C). Suitable for up to 400 psi (27.6 bar), the pressure range can be adjusted from 25 to 75 psi (172 to 517 kPa) with the standard setting at 50 psi (345 kPa).


  • UPC 098268332407
  • Online Product ID 3631870
  • Weight 1.92 lbs.
  • Material Copper Silicon
  • Adjustable Reduced Pressure Range Psi 25 to 75
  • Disc Material Elastomer
  • Inlet Connection Size 0.75''
  • Inlet Connection Type Union Joint
  • Inlet Thread Type NPT
  • Lead Free yes
  • Maximum Temperature Deg F 180
  • Maximum Working Pressure Psi 400
  • Minimum Temperature Deg F 33
  • Outlet Connection Size 0.75''
  • Outlet Connection Thread Type NPT
  • Outlet Connection Type Female Threaded
  • Series LFN45B
  • Standard Reduced Pressure Setting Psi 50
  • Strainer yes
  • Strainer Material Stainless Steel
  • Thermal Expansion Bypass yes
  • Valve Style Standard

Additional information

  • Integral stainless steel strainer removable for cleaning
  • Serviceable in line
  • Sealed spring cage for accessible outdoor or pit installations
  • Thermoplastic seat and cage

About This Brand

Navigate to top of page