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Brass water pressure regulator valve with threaded connections

Watts

Watts 1/2 LF25AUB-HP-Z3 Water Pressure Regulator Trap

SKU CH-3HXK-FZWF3 MPN 1/2

Brass water pressure regulator with 75 to 125 psi adjustment range for commercial and residential plumbing systems

  • TypeDrain Components
  • Regulates pressure from 75 to 125 psi for consistent flow
  • Brass body withstands up to 300 psi maximum pressure
  • Operates reliably at temperatures up to 160 degrees Fahrenheit
  • Meets ANSI A 112.26.2 and ASSE 1003 standards
  • Certified to CSA B356 and MIL-V-18146B Type 1

Application scope

The Watts LF25AUB-Z3 water pressure regulator is designed for both commercial and residential plumbing systems. It connects via 1/2 inch FIP threads on both inlet and outlet. Brass body construction suits potable water installations.

Sustained pressure control

The valve maintains outlet pressure within a 75 to 125 psi adjustment range under continuous flow conditions. It withstands a maximum supply pressure of 300 psi and a maximum water temperature of 160 degrees F. Compliance with ANSI A 112.26, ASSE 1003, CSA B356 and MIL-V-18146B Type 1 confirms performance over extended service.

Deciding specification

The 75 to 125 psi adjustment range is the single figure that determines whether this regulator matches the required downstream pressure. Systems needing pressure outside this band will require a different model.

Highlights

  • Regulates pressure from 75 to 125 psi for consistent flow
  • Brass body withstands up to 300 psi maximum pressure
  • Operates reliably at temperatures up to 160 degrees Fahrenheit
  • Meets ANSI A 112.26.2 and ASSE 1003 standards
  • Certified to CSA B356 and MIL-V-18146B Type 1

Specifications

TypeDrain Components
BrandWatts
Model1/2 LF25AUB-HP-Z3

Questions about this item

How much heat can the LF25AUB-HP-Z3 handle during continuous daily operation?

The brass body is rated for a maximum temperature of 160 degrees Fahrenheit, making it suitable for standard hot-water supply lines running all day.

What pipe fittings must I already have to install this 1/2-inch FIP regulator?

You need 1/2-inch female iron pipe threaded connections on both the inlet and outlet sides to match the regulator's FIP ends.

Will this regulator work with older galvanised or copper pipe already in the wall?

Yes, the 1/2-inch FIP threads connect directly to legacy galvanised or copper fittings of the same nominal size.

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