Description
The Watts LF25AUB-LP-Z3 is a 1-inch lead-free, direct-acting pressure reducing valve engineered for dependable performance in hydronic heating systems, potable water, and low-pressure plumbing applications. Featuring a low-pressure (LP) spring range of 10–35 PSI, this valve automatically reduces higher incoming supply pressures to a safe, consistent downstream level — protecting equipment, piping, and fixtures from pressure-related damage.
Key Features
- Lead-free (LF) construction for compliance with NSF/ANSI 61 and potable water safety standards
- 1-inch connection size for straightforward installation in standard piping systems
- Low-pressure (LP) spring range: 10–35 PSI for precise downstream pressure control
- Direct-acting design provides accurate, responsive pressure regulation
- Z3 spring configuration for targeted low-pressure zone applications
- Compact, durable body suitable for tight mechanical room installations
- Compatible with hydronic heating, radiant systems, and domestic water supply
Product Specifications
- Brand: Watts
- SKU: 0009330
- Model: LF25AUB-LP-Z3
- Connection Size: 1 inch
- Pressure Range: 10–35 PSI
- Lead-Free: Yes
- Series: 25AUB
Typical Applications
- Hydronic heating and hot water boiler systems
- Radiant floor heating fill and pressure regulation
- Domestic potable water pressure reduction
- Low-pressure zone control in multi-zone hydronic systems
- Commercial and residential plumbing installations
Trust Watts engineering and Jackson Systems’ HVAC expertise to keep your system operating safely within design pressure limits. Order the Watts 0009330 LF25AUB-LP-Z3 today.







Reviews
There are no reviews yet.