Watts 1053017 Knob

As a veteran HVACR technician, you know that maintaining precise temperature control starts with reliable hardware. The Watts 1053017 Replacement Knob is the specific OEM component required for the mechanical adjustment of Watts 70A and 70A54P-CAP series tempering valves. Designed for hot water extender applications, this black control knob provides the necessary leverage and indexing for accurate mixing valve calibration in both residential and commercial hydronic systems. This part is cross-compatible with several valve variants including the LF70A, L70A, and 70AF series. Built from high-density, durable materials, it handles the daily rigors of mechanical stress better than generic alternatives, ensuring a secure fit on the valve stem to prevent slipping or inaccurate settings. Replacing a damaged or weathered knob is a critical maintenance step to ensure system integrity and point-of-use temperature safety without needing to replace the entire valve assembly.

• Genuine Watts part ensures 1:1 compatibility with Series 70A tempering valves.
• Supports precise temperature adjustment for hot water extender assemblies.
• Direct replacement for Watts 1053017, eliminating guesswork during service calls.
• High-density construction resists stripping and thermal fatigue in demanding environments.
• Compatible with 1/2-inch and 3/4-inch valve bodies including LF70A-RK configurations.

Which specific valve series is this knob compatible with?
The Watts 1053017 is engineered for the 70A, 70AF, L70A, L70AF, LF70A, and LFL70A tempering valve series. It is a standard component for hot water extender valves used to mix hot and cold water for safe distribution.

Does this knob fit both Lead-Free and standard brass versions?
Yes, this replacement knob retains the same physical dimensions and stem attachment for both the original series and the newer Lead-Free (LF) versions of the Watts 70A valves.

Is the mounting screw included with this part?
The 1053017 typically refers to the knob itself. For a full rebuild, technicians often pair this with the Watts 70A-RK repair kit, though this individual knob is the go-to for external mechanical damage.

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.