FlowVis® - INSTRUCTION MANUAL
11.0
SPECIFICATIONS
Materials used:
Item
Valve Cover Screws
Valve Body
Valve Lid
Calibrated Spring
Pivot Pin
'O' Ring
Operation:
Function
Maximum Working
Pressure
Design Pressure
Head Loss when
installed to 2" pipe
Head Loss when
installed to 2.5" pipe
Accuracy when installed
to 2.5" straight pipe*
Accuracy when installed
to 2.5" in between
elbows*
Minimum operating
ambient temperature
Maximum operating
ambient temperature
Periodic Calibration
Design Life
* Accuracy results are on average deviation from the actual fl ow as determined by a NIST calibrated
fl ow meter in the range of 20-110 gpm, and when installed in horizontal, vertical up and vertical down
orientations.
Material / Comments
Stainless Steel
CPVC Plastic, Chlorine, Acid resistant
Poly Carbonate (PC), Chlorine, Ozone resistant
Stainless Steel
Stainless Steel
Silicone-Lubricated Elastomer
Model(s)
Comments
FV-C
50 psi
FV-C
>400 psi
FV-C
0.77 psi at 20 gpm;
2.23 at 110 gpm
FV-C
0.71 psi at 21.3
gpm; 2.37 psi at
112.6 gpm
FV-C
Range: 20-110
gpm, average
accuracy: 2.28%
FV-C
Range: 20-110
gpm, average
accuracy: 1.42%
All
32ºF (0ºC)
All
140ºF (60ºC)
All
None required
All
Greater than 5
years
Page 7
NSF 50 Certifi ed
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