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Bronze water pressure reducing valve with adjustment screw and pressure gauge port

Watts

Watts LFU5B-Z3-LP Water Pressure Reducing Valve 30psi

SKU CH-NPJX-0Z8RD

Reduces incoming water pressure to 30 psi for 1-1/2 inch plumbing lines

  • Reduces water pressure to a safe 30 psi
  • 1-1/2 inch connection fits standard plumbing
  • Watts brand trusted for reliable pressure control
  • Low-pressure design protects downstream fixtures
  • Lead-free construction meets potable water standards

Pressure Reducing Valve 30psi

The Watts LFU5B-Z3-LP is a water pressure reducing valve preset to 30psi for residential and light commercial plumbing systems. It protects downstream fixtures and appliances from excessive supply pressure. The valve is supplied new and ready for installation on compatible pipework.

Sustained Pressure Control

The valve maintains a steady 30psi outlet pressure even when inlet pressure fluctuates during extended demand periods. Internal components are designed to operate continuously without creep or chatter under normal service conditions. This behaviour reduces stress on joints, seals and connected equipment over time.

Brass Body and Union Connections

A durable brass body resists corrosion and scale build‑up in potable water applications. The 1‑1/2in union end connections allow straightforward installation and removal for servicing without cutting pipe. Lead‑free construction meets current drinking‑water safety requirements for everyday use.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $2,273.99
Pricier than about 99% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameWATTS
Product typeOther

Questions about this item

Will the valve run hot or make noise when regulating pressure continuously?

The LFU5B-Z3-LP is a mechanical pressure reducing valve with no motor or pump, so it generates no heat and operates silently under normal flow conditions.

What piping and fittings must already be in place for this 1-1/2 in valve to install correctly?

You need 1-1/2 inch supply lines with compatible thread or solder connections, plus adequate straight pipe runs upstream and downstream for accurate pressure control.

How does the 30 psi factory setting interact with older galvanized or copper plumbing downstream?

The valve holds outlet pressure at 30 psi regardless of inlet fluctuations, protecting older pipes and fixtures from pressure spikes that could cause leaks or bursts.

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