Recirculation valve for use with NPE-A series tankless water heaters

Designed for recirculation of domestic hot water in applications where a dedicated return line is not available.

NaviCirc is a simple plumbing device that uses the existing hot and cold water lines to reduce the wait time for hot water at the faucet without the need for a dedicated recirculation return line

  • Designed and optimized for use with Navien NPE-A Series water heater models
  • Automatically blocks circulation when the hot water temperature within the valve is about 95°F (35°C)
  • Compatible with the Navien HotButton Kit for demand-type recirculation systems

NaviCirc Kit (30022965A) includes the NaviCirc recirculation valve (PFFW-SXX-001) and two 1/2" x 3/8" flexible hoses and adapters.

The NaviCirc recirculation valve works best if installed under the furthest accessible fixture away from the water heater. With the NPE-A unit’s built-in pump, water circulates through the NaviCirc to preheat the hot water lines, using the cold supply line as the return line back to the water heater.

How it works diagram

Valve Only Part Number:

NaviCirc Kit Part Number:

Water Flow Rate Range:

Crossover Shutoff Temperature:

Water Temperature Range:

Ambient Temperature Range:

Storage Temperature Range:

Maximum Water Pressure:

Connection Size:

Installation Operation:

Dimensions (in):

Weight (lb):




0.53 - 1.06 GPM  (2.0 - 4.0 LPM)

95˚F (35˚C)

41˚F to 180˚F (5˚C to 82˚C)

32 - 122˚F (0 - 50˚C)  (Indoor use only)

23 - 122˚F (-10 - 50˚C)

150 psi

1/2” NPS

Horizontal Only

5.62 x 3.93 x 2.19

1.1 lb (0.5 kg)

3 Years