Description
The Mueller Industries BD34580 is a heavy-duty pressure relief valve (PRV) engineered to protect HVAC, hydronic, and plumbing systems from dangerous overpressure conditions. With a 1-5/8″ inlet connection and a 1-1/4″ NPT outlet, this valve is designed for straightforward installation in a wide range of commercial and residential pressure-relief applications.
Key Features
- 235 PSI relief set pressure for dependable overpressure protection
- 1-5/8″ inlet x 1-1/4″ NPT outlet connection for versatile system integration
- Durable construction from Mueller Industries — a trusted name in flow control and valve manufacturing
- Designed for use in hydronic heating systems, boilers, and pressurized HVAC piping
- Automatic pressure relief helps prevent system damage and ensures safe operation
Specifications
- SKU: BD34580
- Brand: Mueller Industries
- Inlet Size: 1-5/8″
- Outlet Connection: 1-1/4″ NPT
- Set Pressure: 235 PSI
- Valve Type: Pressure Relief Valve (PRV)
Application
This Mueller Industries PRV is ideal for protecting pressurized piping, boiler systems, and hydronic heating circuits where a reliable, code-compliant pressure relief solution is required. The 235 PSI set point makes it well suited for medium- to high-pressure system configurations commonly found in commercial HVAC and industrial plumbing installations.







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