Metraflex MVC150075 Air Vent
The Metraflex MVC150075 Air Vent, also known as the MetraVent MVC-15, is a heavy-duty, float-operated automatic air release valve designed for high-point installation in hydronic heating and cooling systems. Built with a rugged ASTM A126 Class B cast iron body and cover, this factory new OEM part features a 3/4 inch NPT inlet and a 1/2 inch NPT outlet. It is specifically engineered to eliminate air pockets that cause air locks, pump cavitation, and reduced heat transfer efficiency. With a 300 PSI maximum working pressure at 150°F (or 260 PSI at 250°F), it handles demanding commercial HVACR applications where consistent air distribution and venting are critical. The internal stainless steel float and lever mechanism ensure the 1/16 inch orifice closes tightly against fluid while remaining normally open to atmosphere during system filling, providing a maintenance-free solution for professional contractors.
Key Benefits for Technicians- Automatic Air Removal: Prevents airlock-induced flow restrictions and gurgling noises in radiators and boilers without manual bleeding.
- High-Pressure Performance: Rated for up to 300 PSI, making it suitable for high-rise hydronic loops and industrial piping.
- Lead-Free Reliability: NSF 372 compliant design with stainless steel internals and a fluoroelastomer orifice button for long-term sealing.
- Simple Field Setup: Includes a 1/2" stainless steel pipe plug in the cap for rapid air venting during initial system commissioning.
Where should the Metraflex MVC150075 be installed?
For maximum HVAC system efficiency, install the valve vertically at the highest points of the piping system where air naturally accumulates. The inlet must face downward to function correctly.
Is this vent suitable for potable water?
While it meets lead-free standards (NSF 372), the cast iron construction is primarily intended for closed-loop heating, cooling, and hydronic systems, not for open potable water service.
How do I handle "spitting" during startup?
It is standard practice to install a drain line to the 1/2" outlet, as the float mechanism may release a small amount of fluid while purging large volumes of air during initial system fill.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Metraflex MVC150075 Air Vent
The Metraflex MVC150075 Air Vent, also known as the MetraVent MVC-15, is a heavy-duty, float-operated automatic air release valve designed for high-point installation in hydronic heating and cooling systems. Built with a rugged ASTM A126 Class B cast iron body and cover, this factory new OEM part features a 3/4 inch NPT inlet and a 1/2 inch NPT outlet. It is specifically engineered to eliminate air pockets that cause air locks, pump cavitation, and reduced heat transfer efficiency. With a 300 PSI maximum working pressure at 150°F (or 260 PSI at 250°F), it handles demanding commercial HVACR applications where consistent air distribution and venting are critical. The internal stainless steel float and lever mechanism ensure the 1/16 inch orifice closes tightly against fluid while remaining normally open to atmosphere during system filling, providing a maintenance-free solution for professional contractors.
Key Benefits for Technicians- Automatic Air Removal: Prevents airlock-induced flow restrictions and gurgling noises in radiators and boilers without manual bleeding.
- High-Pressure Performance: Rated for up to 300 PSI, making it suitable for high-rise hydronic loops and industrial piping.
- Lead-Free Reliability: NSF 372 compliant design with stainless steel internals and a fluoroelastomer orifice button for long-term sealing.
- Simple Field Setup: Includes a 1/2" stainless steel pipe plug in the cap for rapid air venting during initial system commissioning.
Where should the Metraflex MVC150075 be installed?
For maximum HVAC system efficiency, install the valve vertically at the highest points of the piping system where air naturally accumulates. The inlet must face downward to function correctly.
Is this vent suitable for potable water?
While it meets lead-free standards (NSF 372), the cast iron construction is primarily intended for closed-loop heating, cooling, and hydronic systems, not for open potable water service.
How do I handle "spitting" during startup?
It is standard practice to install a drain line to the 1/2" outlet, as the float mechanism may release a small amount of fluid while purging large volumes of air during initial system fill.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Metraflex MVC150075 Air Vent, also known as the MetraVent MVC-15, is a heavy-duty, float-operated automatic air release valve designed for high-point installation in hydronic heating and cooling systems. Built with a rugged ASTM A126 Class B cast iron body and cover, this factory new OEM part features a 3/4 inch NPT inlet and a 1/2 inch NPT outlet. It is specifically engineered to eliminate air pockets that cause air locks, pump cavitation, and reduced heat transfer efficiency. With a 300 PSI maximum working pressure at 150°F (or 260 PSI at 250°F), it handles demanding commercial HVACR applications where consistent air distribution and venting are critical. The internal stainless steel float and lever mechanism ensure the 1/16 inch orifice closes tightly against fluid while remaining normally open to atmosphere during system filling, providing a maintenance-free solution for professional contractors.
Key Benefits for Technicians- Automatic Air Removal: Prevents airlock-induced flow restrictions and gurgling noises in radiators and boilers without manual bleeding.
- High-Pressure Performance: Rated for up to 300 PSI, making it suitable for high-rise hydronic loops and industrial piping.
- Lead-Free Reliability: NSF 372 compliant design with stainless steel internals and a fluoroelastomer orifice button for long-term sealing.
- Simple Field Setup: Includes a 1/2" stainless steel pipe plug in the cap for rapid air venting during initial system commissioning.
Where should the Metraflex MVC150075 be installed?
For maximum HVAC system efficiency, install the valve vertically at the highest points of the piping system where air naturally accumulates. The inlet must face downward to function correctly.
Is this vent suitable for potable water?
While it meets lead-free standards (NSF 372), the cast iron construction is primarily intended for closed-loop heating, cooling, and hydronic systems, not for open potable water service.
How do I handle "spitting" during startup?
It is standard practice to install a drain line to the 1/2" outlet, as the float mechanism may release a small amount of fluid while purging large volumes of air during initial system fill.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
