VISI-FLO® 1400 & 1500 Series
Threaded
OPW has been manufacturing sight flow indicators for over
60 years. Our experience has led to many innovations in design and manufacturing,
making VISI-FLO® the most thoroughly-engineered Sight Flow Indicator
on the market. VISI-FLO’s are available in two series: the Standard
1400 Series, and the 1500 High-Pressure High-Temperature Series.
Standard Features
Exclusive 3-Year “No-Leak” Guarantee – VISI-FLO’s
innovative radial seal creates a constant and uninterrupted sealing force
between the body and outside diameter of the glass lens. This sealing method
provides a longer lasting and better seal than conventional flat seals.
Maintenance-Free Design – Visi-Flo’s unique,
bolt-on-body design requires no special maintenance or torquing sequence
be followed to prevent leaks. This results in a safer, more reliable sight
flow indicator than units using tie rods to fasten lens and seal to body.
Shipment Within 48 Hours on Most Items
Rated for Full Vacuum Service
Four Indicator Styles
- Propeller – The best way to show flow of opaque liquids.
Ideal for observation at a distance. Flow from right to left is standard.
Specify if left to right flow is needed. Not recommended for flow rates above
100 GPM.
- Bi-Directional Flapper – This indicator
points in either direction to show you at a glance which way the liquid
is flowing.
- Bi-Directional Plain – When the color
and clarity of your liquid are of prime importance.
- Drip Tube – Ideal for gravity, extremely
low or intermittent flow. Keeps product from dripping on the glass. Assures
constant see-through for vertical lines.
On 2" and Smaller Units – bottom PTFE spacer eliminates
seal deformation due to pressure cycling.
