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Watts LF-RK-TC3 test cock repair kit components

Watts

Watts LF-RK-TC3 757/957 Test Cock Repair Kit

SKU CH-EQMN-7X8DH

Repair kit for Watts 757 and 957 test cocks, includes disc washer, O-ring and test cock

  • Repair kit restores test cock function
  • Includes disc washer for proper sealing
  • O-ring supplied to prevent leaks
  • Test cock component replaces worn part
  • Compatible with Watts 757 and 957 series

Test Cock Repair Kit for Watts Series LF-RK-TC3

This repair kit is designed for maintaining Watts Series LF-RK-TC3 test cocks in industrial plumbing systems. It contains a disc washer, an O-ring and a test cock component for assembly or replacement. The parts are supplied new and ready for installation by qualified technicians. Use this kit to restore proper sealing and function during scheduled maintenance.

For technicians servicing Watts LF-RK-TC3 valves

Plumbing professionals who service Watts Series LF-RK-TC3 test cocks will find the correct replacement components in this kit. It is not intended for other valve series or different manufacturers' equipment. Buyers needing parts for alternative models or larger pipe diameters should verify compatibility before purchasing. The kit addresses wear on the specific sealing surfaces of this series.

Includes disc washer, O-ring and test cock

The package provides the disc washer, O-ring and test cock required for the repair procedure. These three items correspond to the internal sealing and control elements of the LF-RK-TC3 assembly. No additional hardware, lubricant or installation tools are included. Confirm the series number on the valve body matches LF-RK-TC3 before ordering.

Highlights

  • Repair kit restores test cock function
  • Includes disc washer for proper sealing
  • O-ring supplied to prevent leaks
  • Test cock component replaces worn part
  • Compatible with Watts 757 and 957 series

Specifications

BrandWATTS

Questions about this item

How do I install the LF-RK-TC3 repair kit on my 757 or 957 series test cock, and what step is commonly missed?

Shut off water pressure, remove the old test cock, then fit the new disc washer and O-ring from the kit before installing the replacement test cock; the step often missed is lubricating the O-ring to prevent pinching during assembly.

Which components in this kit will need replacement again after extended service?

The disc washer and O-ring are wear items that degrade with pressure cycles and mineral exposure; the test cock body lasts longer but should be inspected whenever the seals are changed.

What is the first limitation that appears when this test cock is cycled repeatedly under system pressure?

The O-ring and disc washer sealing surfaces wear first, leading to minor weep or pressure loss before the brass test cock body shows any fatigue.

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