Potter VSR-10, Vane-Type Waterflow Switch for 10-inch Steel Pipe, with Retard, SPDT Contact(s)

Potter VSR-10, Vane-Type Waterflow Switch for 10-inch Steel Pipe, with Retard, SPDT Contact(s)

Manufacturer:Potter Electric
Manufacturer Part#:1144410
Our Part#:VSR-10
Stock Status: Ships in 3-5 Days
Retail Price:$525.00
Your Savings:$140.58(27%)
Your Price:$384.42


Potter Electric







Feature 5


Feature 7

Switch Type:Saddle-Type Flow Switch|Pipe Type:Steel|Nominal Pipe Size:10|Mounting Type:Saddle|Activation Type:Vane|Activation Delay (Retard):Yes|Contact Type:SPDT


  • UL and CUL Listed
  • Service Pressure: 300 PSI (20.7 BAR)
  • Flow Sensitivity Range for Signal: 4-10 GPM (15-38 LPM) - UL
  • Maximum Surge: 18 FPS (5.5 m/s)
  • Contact Ratings:
    • Two sets of SPDT (Form C)
    • 10.0 Amps at 125/250VAC
    • 2.0 Amps at 30VDC Resistive
    • 10 mAmps min. at 24VDC
  • Conduit Entrances: Two knockouts provided for ½" conduit. Individual switch compartments suitable for dissimilar voltages.
  • NEMA 4/IP54 Rated Enclosure suitable for indoor or outdoor use with factory installed gasket and die-cast housing when used with appropriate conduit fitting.
  • Temperature Range: 40°F - 120°F, (4.5°C - 49°C) - UL
  • Non-corrosive sleeve factory installed in saddle.


The Model VSR is a vane type waterflow switch for use on wet sprinkler systems. It is UL Listed and FM Approved for use on steel pipe; schedules 10 through 40.

The VSR may also be used as a sectional waterflow detector on large systems. The VSR contains two single pole, double throw, snap action switches and an adjustable, instantly recycling pneumatic retard. The switches are actuated when a flow of 10 GPM (38 LPM) or more occurs downstream of the device. The flow condition must exist for a period of time necessary to overcome the selected retard period.

The VSR switches and retard device are enclosed in a general purpose, die-cast housing. The cover is held in place with two tamper resistant screws which require a special key for removal. A field-installable cover tamper switch is available as an option which may be used to indicate unauthorized removal of the cover.

Compatible Pipe/Installation Requirements

ModelNominal Pipe SizeNominal Pipe O.D.Pipe Wall ThicknessHole SizeU-Bolt Nuts Torque
Schedule 10 (UL)Schedule 40 (UL)
VSR-1010DN25010.750273.00.1654.190.3659.272.00 ± .12550.8 ± 2.02027
The Potter model VSR-10 is a vane-type saddle flow switch with retard and SPDT contact(s), designed for use with 10-inch steel pipe.

You May Also Like...

Recently Viewed Items