Pump ECM ∆P

Pump ECM ∆P

Regular price $219.00 Sale

Application: UNI 15, 35 - Pellet 20, 40 - EKO 15, 35

Made in USA

The Viridian VR1816 circulator is an infinitely variable speed, high-efficiency wet rotor circulator with an ECM permanent magnet motor. Operating modes include infinitely variable fixed speed and self-adjusting constant pressure or proportional pressure variable speed.


  • Connection type: Flanged, Universal

  • Flange Code: U

  • High-efficiency ECM motor uses up to 85% less electricity

  • Infinitely variable speed settings to fine tune flow for any system

  • Six pressure presets to fit the job

  • Sure Start automatic unblocking and air purging mode


  • 18ft. Shut-off head, 16 gpm max flow

  • ECM High-efficiency motor

  • Easy to use dial to set operating speed or pressure control

  • 3 operating modes:

    • Fixed speed - infinitely adjustable min/max settings

    • Constant pressure - variable speed - 3 constant pressure differential curves (5, 10, or 15 feet of head)

    • Proportional pressure - variable speed - 3 variable pressure differential curves (High, Med, or Low)

  • Multi-color LED display showing operating mode and error code diagnostics.

  • Use with a Taco ZVC Zone Valve Control or SR Switching Relay for ON/OFF operation.

  • Integral Flow Check (IFC) is included in carton. Simply press into discharge flange if required.

  • Dual electrical knockouts

  • Whisper quiet operation.

  • BIO Barrier® protects the pump from system contaminants