Description
Mueller Industries AD18358 Pressure Reducing Valve Overview
The Mueller Industries AD18358 is a 235 PSI-rated Pressure Reducing Valve (PRV) engineered to deliver consistent downstream pressure control in hydronic, plumbing, and HVAC piping systems. With 3/4″ NPTFE (female external NPT) inlet and 3/4″ NPTFI (female internal NPT) outlet connections, this valve integrates seamlessly into a wide range of commercial and residential applications where precise pressure management is essential.
Backed by Mueller Industries’ reputation for quality brass and copper products, the AD18358 is built to perform reliably under demanding system conditions, protecting downstream equipment from pressure surges and overpressure events.
Key Features
- 235 PSI pressure rating for robust system protection
- 3/4″ x 3/4″ connection size for standard piping compatibility
- NPTFE x NPTFI threaded connections for secure, leak-resistant installation
- Pressure reducing valve design maintains consistent downstream pressure
- Manufactured by Mueller Industries — a trusted name in HVAC and plumbing valve solutions
Specifications
- SKU: AD18358
- Brand: Mueller Industries
- Pressure Rating: 235 PSI
- Inlet Connection: 3/4″ NPTFE (Female NPT External)
- Outlet Connection: 3/4″ NPTFI (Female NPT Internal)
- Valve Type: Pressure Reducing Valve (PRV)
Applications
- Hydronic heating and cooling systems
- Commercial and residential plumbing pressure regulation
- HVAC water distribution piping
- Boiler feed and make-up water lines







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