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Brass water pressure reducing valve with union connections and strainer, 3/4 inch pipe size

Watts

Watts 3/4 LF U5BZ3 Water Pressure Reducing Valve 3/4 in 25-75 psi

SKU CH-NCBX-3JXZC MPN 3/4

Reduces incoming water pressure to a 25–75 psi range with a 50 psi preset using lead-free brass construction

  • TypeDrain Components
  • MaterialLead Free Brass
  • Lead-free brass meets ANSI and ASSE standards for safe potable water
  • Adjustable 25 to 75 psi range protects pipes and appliances from excess pressure
  • Factory preset at 50 psi simplifies installation and commissioning
  • Union FNPT connections allow quick servicing without cutting pipe
  • Rated to 300 psi and 160 °F for demanding residential and commercial systems

Lead-Free Pressure Reducing Valve

This Watts valve reduces incoming water pressure to a preset 50 psi, adjustable between 25 and 75 psi. It fits 3/4 inch FNPT union connections and is constructed from lead-free brass for potable water safety. The unit includes a built-in strainer and meets ANSI A 112.26.2, ASSE 1003 and CSA B356 standards. Maximum rated temperature is 160 degrees F and maximum working pressure is 300 psi.

Ideal for residential supply lines needing

Homeowners and plumbers protecting fixtures, appliances and piping from excessive municipal pressure will find this valve suitable. It is not for systems requiring pressure settings above 75 psi or below 25 psi. Installers needing a different connection type than FNPT union or a valve rated above 300 psi maximum pressure should look elsewhere.

25 to 75 psi adjustment range

The adjustable outlet pressure span of 25 to 75 psi is the single specification that determines whether this valve matches the system design requirement. Verify the required set point falls within this window before purchase.

Highlights

  • Lead-free brass meets ANSI and ASSE standards for safe potable water
  • Adjustable 25 to 75 psi range protects pipes and appliances from excess pressure
  • Factory preset at 50 psi simplifies installation and commissioning
  • Union FNPT connections allow quick servicing without cutting pipe
  • Rated to 300 psi and 160 °F for demanding residential and commercial systems

Specifications

TypeDrain Components
MaterialLead Free Brass
BrandWatts
Model3/4 LF U5BZ3

Questions about this item

Will the 3/4 in FNPT union connections fit my existing copper piping?

The valve uses FNPT union by FNPT threads, so it connects directly to 3/4 in male NPT fittings or adapters without soldering.

How do I set the outlet pressure to 50 psi and what step is often missed?

Loosen the locknut, turn the adjusting screw until a downstream gauge reads 50 psi, then tighten the locknut — skipping the gauge leads to unknown pressure.

When should I clean the built-in strainer and what indicates it is clogged?

Inspect the strainer if flow drops or pressure fluctuates; remove the union nut, pull out the screen, rinse debris, and reinstall.

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