overview
Ingenious in concept and flawless in operation, FlowVis® has been revolutionizing the way flow is measured in a myriad of applications and environments since its inception in 2012.
With unrivaled average accuracy, greater installation flexibility, and more NSF 50 certified models than any other brand, it’s easy to see why FlowVis® is a brand of flow meter you can put your trust in.
Key Features
Installation flexibility; installs horizontally, vertically, or even upside-down
Can be installed with little-to-zero straight pipe requirements with no effect on accuracy
≥98% accuracy across the entire model range
Models available for 1.5” - 8” and metric units for DN40 - DN200
More NSF 50 certified models than any other brand of flow meter
Doubles as a check valve (1.5", 2", 2.5" and 2”x2.5”models)
The first - and only - flow meter for pools and spas to be outdoor-rated by NSF
Clear, easy-to-read scale in GPM or optional LPM or M3/h with velocity scale
Installs quickly and easily with no calibration required
Manufactured in the USA
15-year design life, 3-year warranty
Product Literature
Gallery
Product overview
Plumbing in the complete valve
Retrofit installation guide
Using FlowVis® to set pump run times
Technical Data
| PIPE DIAMETER | 1.5", 2", 2.5", 3", 4", 6", 8", DN40, DN50/65, DN80, DN100, DN150, DN200 |
| AVERAGE ACCURACY | >98% across the entire model range |
| WARRANTY | 15-year design life, 3-year warranty |
| APPROVALS | NSF 50 (FV-C, FV-3, FV-4, FV-C-S, FV-C-Saline models) Additional models NSF 50 pending |
| HEAD LOSSES | Please refer to chart in product brochure |
For FlowVis® customers everywhere, FlowVis® isn't just another flow meter; it's a revolution in reliable flow measurement.
Testimonials
““I absolutely love that I get a very accurate flow reading anywhere I need to place it in the pump room.””
““Finally! A reliable flow meter for pools. Check out FlowVis®.””
““I’m impressed with its simplicity, accuracy, ease of installation, and the ability to view the actual flow rate clearly.””
““I’m looking forward to using a flow meter that I feel I can trust to display a true flow rate.””
“It is incredibly accurate, it doesn’t get stuck all the time like our old flow meter and best of all, our local DEQ inspector loves it.””
Calculate your potential savings
Installing a variable speed pump for energy savings makes complete sense, but the only way to know how to correctly set the pump's speed is by knowing the flow rate. Without an accurate flow meter, many users guess the flow rate, or use one of the pump’s factory preset speed options. This can result in lost energy savings equaling hundreds - sometimes even thousands - of dollars per year.
Use H2flow’s interactive calculator to determine how much money you could be saving by using FlowVis in combination with your variable speed pump!
Available Models
FlowVis™ models have an average accuracy of >97.9% across the entire model range. Find the model that’s right for your application.
GPM MODELS (COMPLETE & RETROFIT)
FV-15-U
FlowVis® model with GPM scale and union fittings for 1.5” pipe.
FV-2-U
FlowVis® model with GPM scale and union fittings for 2” pipe.
FV-15
FlowVis® model with GPM scale for 1.5” pipe.
FV-2
FlowVis® model with GPM scale for 2” pipe.
FV-25
FlowVis® model with GPM scale for 2.5” pipe.
FV-C
FlowVis® model with GPM scale for 2″ & 2.5″ pipe (availability ends mid-2021).
FV-3-40
FlowVis® model with Tee and GPM scale for 3″, SCH40 pipe.
FV-3
FlowVis® unit with Tee and GPM scale for 3” pipe.
FV-4
FlowVis® unit with Tee and GPM scale for 4″ pipe.
FV-6
FlowVis® model with saddle-clamp and GPM scale for 6” pipe.
FV-8
FlowVis® model with saddle-clamp and GPM scale for 8” pipe.
FV-C-S
FlowVis® model with GPM scale and safety flapper for 2″ pipe.
FV-C-Saline
FlowVis® model with GPM scale for 2" pipe on flotation tank/saline applications.
FV-C-HF-S
FlowVis® model with GPM scale for high-flow applications on 2.5” pipe.
FVJ-R-15
FlowVis® model with GPM scale for retrofit to existing 1.5” Jandy® valve bodies.
FVH-R-15
FlowVis® model with GPM scale for retrofit to existing 1.5” Hayward® valve bodies.
FVP-R-15
FlowVis® model with GPM scale for retrofit to existing 1.5” Praher® valve bodies.
FVJ-R
FlowVis® model with GPM scale for retrofit to existing2x2.5” Jandy® valve bodies.
FVH-R
FlowVis® model with GPM scale for retrofit to existing 2x2.5” Hayward® valve bodies.
FVP-R
FlowVis® model with GPM scale for retrofit to existing 2x2.5” Praher® valve bodies.
LPM models (complete & retrofit)
FV-15-L
FlowVis® model with LPM scale for 1.5” pipe.
FV-C-L
FlowVis® model with LPM scale for 2x2.5” pipe.
FV-3-L
FlowVis® model with Tee and LPM scale for 3″ pipe.
FV-4-L
FlowVis® unit with Tee and LPM scale for 4″ pipe.
FV-6-L
FlowVis® model with saddle-clamp and LPM scale for 6” pipe.
FV-8-L
FlowVis® model with saddle-clamp and LPM scale for 8” pipe.
FV-C-L
FlowVis® model with LPM scale and safety flapper for 2″ pipe.
FV-C-L-Saline
FlowVis® model with LPM scale for 2" pipe on flotation tank/saline applications.
FVJ-R-15-L
FlowVis® model with LPM scale for retrofit to existing 1.5” Jandy® valve bodies.
FVH-R-15-L
FlowVis® model with LPM scale for retrofit to existing 1.5” Hayward® valve bodies.
FVP-R-15-L
FlowVis® model with LPM scale for retrofit to existing 1.5” Praher® valve bodies.
FVJ-R-L
FlowVis® model with LPM scale for retrofit to existing 2x2.5” Jandy® valve bodies.
FVH-R-L
FlowVis® model with LPM scale for retrofit to existing 2x2.5” Hayward® valve bodies.
FVP-R-L
FlowVis® model with LPM scale for retrofit to existing 2x2.5” Praher® valve bodies.
M³/H MODELS (COMPLETE & RETROFIT)
FV-C-M-DN40
FlowVis® model with M³/h scale for DN 40 pipe.
FV-C-M-DN50/60
FlowVis® model with M³/h scale for DN 50/65 pipe.
FV-C-M-DN80
FlowVis® model with M³/h scale for DN 80 pipe.
FV-C-M-DN100
FlowVis® model with M³/h scale for DN 100 pipe.
FV-C-M-DN150
FlowVis® model with M³/h scale for DN 150 pipe.
FV-C-M-DN200
FlowVis® model with M³/h scale for DN 200 pipe.
SERVICE REPAIR KITS
FV-SK
FlowVis Service Repair Kit suitable for all models 1.5” - 2.5” with check valve functionality. Comprises: o-ring, flapper, spring and pivot pin.
FV-SK-CAR
FlowVis Service Repair Kit suitable for 3” - 8” models. Comprises: spring, o-ring, spring pulley pivot pin, spring pulley to flapper pulley wire.
Click here to view available FlowVis® Digital models.
Interactive Demo
WANT TO FIND AN H2FLOW PARTNER?
Use our dealer locator page to find one of our authorized H2flow partners near you