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.

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