Watts 0780336 K Valve Arm

The Watts 0780336 K Valve Arm is a heavy-duty bronze replacement valve arm engineered for 1 to 2-inch float valves. Often identified by technician designation 2JB-3, this component is essential for maintaining mechanical leverage in high-capacity fluid level control systems. It features a standard 3/8-16 thread size, ensuring a secure and precise connection to stems and floats within the Watts FLT Valve Arms Series. Constructed from high-grade bronze, it provides the structural integrity required to withstand the constant torque and potential corrosion found in commercial and industrial water service environments. For contractors servicing 1-inch or larger valves, this K-style arm is the direct spec replacement to ensure the float assembly maintains proper alignment and shut-off pressure. Using genuine Watts 0780336 replacement parts eliminates indexing issues common with generic alternatives, ensuring your float valve maintenance meets original equipment standards for long-term reliability.

Key Benefits for Technicians

• Direct Compatibility: Exact replacement for the Watts 2JB-3 arm, specifically designed for 1-inch to 2-inch valve bodies.
• Industrial Build: Solid bronze body material offers superior rigidity over plastic or thin-gauge metal arms, preventing bending under high pressure.
• Standardized Threading: Features a 3/8-16 UNC thread for universal compatibility with standard float stems and balls.
• Reliable Lever Action: Optimized length and geometry provide the necessary mechanical advantage for positive valve closure.

Common Questions

Is the Watts 0780336 compatible with 1/2-inch valves?
No, this K Valve Arm is specifically sized for 1" through 2" float valves. For smaller valves, reference the Watts FLT series catalog for the appropriate smaller-gauge arm.

Does this arm include the float ball or stem?
This part number (0780336) refers specifically to the bronze valve arm. Stems and float balls must be sourced separately based on your specific tank depth and buoyancy requirements.

What is the difference between the 0780336 and the 2JB-3?
They are identical. 0780336 is the modern ordering code, while 2JB-3 is the legacy technical designation used in some older plumbing schematics.

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.