Honeywell PV125/U Air Eliminators, 1-1/4 in, Female NPT, 125 psi, 240 deg F, Bronze

The Honeywell PV125 SuperVent Air Eliminator provides efficient and automatic removal of trapped air from hydronic heating and cooling systems to ensure quiet, efficient, and reliable operation.

Engineered for superior performance, the Honeywell PV125 automatically vents unwanted air from closed-loop hydronic systems, reducing noise, corrosion, and circulation problems. Its rugged bronze construction, high-temperature tolerance, and compact design make it ideal for both residential and light commercial HVAC applications. Designed to operate maintenance-free, the SuperVent helps maintain system efficiency and extend component life.

• Model number PV125 identifies this Honeywell SuperVent Automatic Air Eliminator with a 1-1/4 inch FNPT connection.
• Designed for hydronic heating and cooling systems to continuously eliminate trapped air and prevent air locks.
• Constructed from durable bronze for corrosion resistance and long-term reliability.
• Compact vertical design fits conveniently in new or retrofit system installations.

Technical Data & Specifications

• Manufacturer: Honeywell Home / Resideo Technologies
• Model Number: PV125
• Product Type: Automatic Air Eliminator (SuperVent Series)
• Nominal Size: 1-1/4 inch
• Connection Type: FNPT (Female National Pipe Thread)
• Body Material: Bronze
• Working Pressure: 125 psi (862 kPa)
• Maximum Operating Temperature: 240°F (116°C)
• Diameter: 2-1/2 inches (64 mm)
• Height: 7-27/32 inches (199 mm)
• Width: 3-11/16 inches (94 mm)
• Flow Orientation: Vertical
• Mounting Type: In-line installation at system high points
• Vent Mechanism: Float-actuated automatic air release
• Seal Material: High-temperature elastomer (Viton® or equivalent)
• Fluid Compatibility: Water or water/glycol mixtures up to 50%
• System Type: Closed-loop hydronic heating or cooling systems
• Maintenance: Maintenance-free design with removable cap for service if needed
• Operating Principle: Internal float mechanism opens vent to release air when accumulated
• Installation Position: Vertical; vent at top of piping system
• Compliance: Meets ASME and CSA standards for hydronic system components
• Warranty: Honeywell Limited Warranty against material and manufacturing defects

Features & Benefits

• Automatically eliminates trapped air from hydronic heating and cooling systems to improve efficiency and circulation.
• Bronze body construction provides superior corrosion resistance and long-lasting durability.
• Float-actuated vent mechanism requires no manual intervention for air release.
• Compact vertical design simplifies installation in new or retrofit systems.
• Reduces noise, air locking, and pump cavitation for smoother operation.
• Withstands working pressures up to 125 psi and operating temperatures up to 240°F.
• Compatible with both water and water/glycol mixture systems.
• Maintenance-free operation with an accessible vent cap for optional manual servicing.