Resideo tk30pv125nk/u Boiler Feed Trim Kit

Product Description

The RESIDEO tk30pv125nk/u is a supreme trim kit paired with the NK300S boiler feed combination valve, designed for hydronic heating system installations. This assembly consolidates multiple components into a single compact unit, reducing installation time and labor costs. The integrated package includes a pressure reducing valve, a double check backflow preventer with air vent, two shut-off ball valves, a pressure gauge, and conveniently located test ports for straightforward inspection and commissioning. It is installed by licensed plumbers and hydronic heating technicians working on residential and light commercial boiler systems.

This trim kit is suited for boiler feed applications where space constraints and installation efficiency are priorities. By combining what would otherwise be several separate field-installed components into one assembly, it simplifies rough-in work and reduces potential leak points. The test ports allow technicians to perform pressure checks and system verification without disturbing adjacent piping. Typical use cases include new boiler installations and boiler replacement projects in residential and light commercial settings.

Key Features

• All-in-one assembly replaces multiple individual components, reducing installation footprint
• Integrated pressure reducing valve maintains consistent system fill pressure
• Double check backflow preventer with air vent protects potable water supply
• Two shut-off ball valves allow isolation without draining the system
• Built-in pressure gauge provides at-a-glance system status
• Conveniently located test ports support easy inspection and commissioning

Compatibility

Designed as an OEM-style boiler feed trim kit for use with the NK300S combination valve in residential and light commercial hydronic heating boiler applications.

Installation Notes

Installation should be performed by a licensed plumber or qualified hydronic heating technician in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and depressurize the system before beginning any connections. Verify that the pressure reducing valve is set to the appropriate fill pressure for the system before restoring flow. Inspect all test ports and connections for leaks after commissioning.

Technical Specifications

• Included Components: Pressure reducing valve, double check backflow preventer with air vent, two shut-off ball valves, pressure gauge, test ports

Standard Information

• Brand: RESIDEO
• Manufacturer Part Number: tk30pv125nk/u