Watts Water Technologies
Water Pressure Reducing Valve Threaded Union Inlet
- SKU:
- LF25AUB-Z3
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description

Water Pressure Reducing Valve Threaded Union Inlet
This lead free brass water pressure reducing valve is the standard model, 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 replaceable seat module, NPT threaded female union inlet by NPT female outlet and a bypass feature to control thermal expansion pressure. The temperature range is 33 to 160 degrees F (0.5 to 71 degrees C). Suitable for up to 300 psi (20.7 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).

Product Highlights
- 25 - 75 psi
- NPT threaded female union inlet by NPT female outlet
- Sealed spring cage with stainless steel cage screws
- Integral stainless steel strainer removable for cleaning
- Replaceable seat module
Technical Specifications
| Manufacturer | Watts Water Technologies |
|---|---|
| Series / Model | LF25AUB-Z3 |
| Connection / Configuration | Female NPT union inlet × female NPT outlet |
| Construction | Lead free brass |
| Adjustment Range | 25–75 psi; standard setting 50 psi |
| Maximum Inlet Pressure | 300 psi |
| Temperature Range | 33–160°F |
| Listed Options | 1/2, 3/4, 1, 1-1/4, 1-1/2, 2 |
| Product Code | LF25AUB-Z3 |
Product Documents
Product Questions
What is the listed connection configuration?
Female NPT union inlet × female NPT outlet. Confirm the selected option and matching piping requirements before ordering.
What construction is identified for this product?
Lead free brass. Review the product documents for the full component materials and selected model details.
Which options are included in this listing?
1/2, 3/4, 1, 1-1/4, 1-1/2, 2. Choose the required option before ordering.

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