
Watts 0780004 Valve
The Watts 0780004 (Series 500-12) is a heavy-duty 1/2 inch mechanical float valve designed for high-capacity flow control in demanding commercial, industrial, and agricultural environments. This valve features a rugged bronze body construction with a machined flange, ensuring a secure and stable interface for tank wall-mounted applications. Engineered for reliability in air conditioning, refrigeration, and irrigation systems, the valve utilizes a no-jam single lever action to prevent mechanical failure during frequent cycling. The assembly includes a factory-specified locknut and gasket for immediate bulkhead mount installation, providing a watertight seal against the tank wall. With an inlet connection of 1/2 inch female NPT and a male straight-pipe threaded outlet, this valve is rated for a maximum pressure of 165 psi and can handle temperatures up to 180°F. The serrated arms allow for precise water level adjustment, while the use of high-tensile manganese bronze for the linkage ensures long-term performance under high-flow stresses of 20 to 31 GPM.
Key Benefits- Heavy-Duty Bronze Construction: Provides superior durability and corrosion resistance in industrial water applications compared to standard plastic or light-duty valves.
- Precise Level Control: Integrated serrated arms allow technicians to make quick, incremental adjustments to the water level without specialized tools.
- High-Flow Capacity: Optimized for systems requiring significant volume, delivering up to 31 GPM at 100 PSI.
- Bulkhead Ready: Specifically packaged as the 500-12 configuration, including the necessary locknut and gasket for through-wall tank installations.
- Serviceable Design: Features replaceable seals and a no-jam lever mechanism to simplify field maintenance and extend the service life of the float assembly.
What is the difference between the Watts 500 and the 500-12?
The standard Series 500 typically refers to the valve body, while the 0780004 (500-12) specifically identifies the 1/2 inch model that includes the locknut and gasket for bulkhead or tank-wall mounting.
What size float ball is required for this valve?
This 1/2" heavy-duty valve is generally paired with a 6-inch or larger copper or plastic float ball (sold separately) to provide the necessary buoyancy to overcome the 165 psi maximum inlet pressure.
Can this valve be used for high-temperature applications?
The Watts 0780004 is rated for a maximum temperature of 180°F (82°C), making it suitable for most industrial cooling and refrigeration processes, but it should not be used for high-pressure steam service.
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.
Original: $128.99
-65%$128.99
$45.15Watts 0780004 Valve
The Watts 0780004 (Series 500-12) is a heavy-duty 1/2 inch mechanical float valve designed for high-capacity flow control in demanding commercial, industrial, and agricultural environments. This valve features a rugged bronze body construction with a machined flange, ensuring a secure and stable interface for tank wall-mounted applications. Engineered for reliability in air conditioning, refrigeration, and irrigation systems, the valve utilizes a no-jam single lever action to prevent mechanical failure during frequent cycling. The assembly includes a factory-specified locknut and gasket for immediate bulkhead mount installation, providing a watertight seal against the tank wall. With an inlet connection of 1/2 inch female NPT and a male straight-pipe threaded outlet, this valve is rated for a maximum pressure of 165 psi and can handle temperatures up to 180°F. The serrated arms allow for precise water level adjustment, while the use of high-tensile manganese bronze for the linkage ensures long-term performance under high-flow stresses of 20 to 31 GPM.
Key Benefits- Heavy-Duty Bronze Construction: Provides superior durability and corrosion resistance in industrial water applications compared to standard plastic or light-duty valves.
- Precise Level Control: Integrated serrated arms allow technicians to make quick, incremental adjustments to the water level without specialized tools.
- High-Flow Capacity: Optimized for systems requiring significant volume, delivering up to 31 GPM at 100 PSI.
- Bulkhead Ready: Specifically packaged as the 500-12 configuration, including the necessary locknut and gasket for through-wall tank installations.
- Serviceable Design: Features replaceable seals and a no-jam lever mechanism to simplify field maintenance and extend the service life of the float assembly.
What is the difference between the Watts 500 and the 500-12?
The standard Series 500 typically refers to the valve body, while the 0780004 (500-12) specifically identifies the 1/2 inch model that includes the locknut and gasket for bulkhead or tank-wall mounting.
What size float ball is required for this valve?
This 1/2" heavy-duty valve is generally paired with a 6-inch or larger copper or plastic float ball (sold separately) to provide the necessary buoyancy to overcome the 165 psi maximum inlet pressure.
Can this valve be used for high-temperature applications?
The Watts 0780004 is rated for a maximum temperature of 180°F (82°C), making it suitable for most industrial cooling and refrigeration processes, but it should not be used for high-pressure steam service.
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 Watts 0780004 (Series 500-12) is a heavy-duty 1/2 inch mechanical float valve designed for high-capacity flow control in demanding commercial, industrial, and agricultural environments. This valve features a rugged bronze body construction with a machined flange, ensuring a secure and stable interface for tank wall-mounted applications. Engineered for reliability in air conditioning, refrigeration, and irrigation systems, the valve utilizes a no-jam single lever action to prevent mechanical failure during frequent cycling. The assembly includes a factory-specified locknut and gasket for immediate bulkhead mount installation, providing a watertight seal against the tank wall. With an inlet connection of 1/2 inch female NPT and a male straight-pipe threaded outlet, this valve is rated for a maximum pressure of 165 psi and can handle temperatures up to 180°F. The serrated arms allow for precise water level adjustment, while the use of high-tensile manganese bronze for the linkage ensures long-term performance under high-flow stresses of 20 to 31 GPM.
Key Benefits- Heavy-Duty Bronze Construction: Provides superior durability and corrosion resistance in industrial water applications compared to standard plastic or light-duty valves.
- Precise Level Control: Integrated serrated arms allow technicians to make quick, incremental adjustments to the water level without specialized tools.
- High-Flow Capacity: Optimized for systems requiring significant volume, delivering up to 31 GPM at 100 PSI.
- Bulkhead Ready: Specifically packaged as the 500-12 configuration, including the necessary locknut and gasket for through-wall tank installations.
- Serviceable Design: Features replaceable seals and a no-jam lever mechanism to simplify field maintenance and extend the service life of the float assembly.
What is the difference between the Watts 500 and the 500-12?
The standard Series 500 typically refers to the valve body, while the 0780004 (500-12) specifically identifies the 1/2 inch model that includes the locknut and gasket for bulkhead or tank-wall mounting.
What size float ball is required for this valve?
This 1/2" heavy-duty valve is generally paired with a 6-inch or larger copper or plastic float ball (sold separately) to provide the necessary buoyancy to overcome the 165 psi maximum inlet pressure.
Can this valve be used for high-temperature applications?
The Watts 0780004 is rated for a maximum temperature of 180°F (82°C), making it suitable for most industrial cooling and refrigeration processes, but it should not be used for high-pressure steam service.
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.












