Wilger Visual Ball Flow Indicators
Wilger Visual Ball Flow Indicators let you identify any plugs or leaks so you can resolve them immediately.
No electronics needed. No costly maintenance.
Just a simple, dependable flow indicator.
Flow Indicators are available in manifold feed and isolated feed columns.
| Max Operating Pressure | 100 PSI (7BAR) |
| Max Operating Flow Rate | Up to 8.0 us gpm (for standard flow column) |
| Max Operating Temperature | 185°F / 85°C |
| O-ring Seal Materials | Buna-N or VITON® |
| U-clip Material | Stainless Steel |
| ORS Fitting Material | Glass-reinforced Polypropylene |
| Column Material | TPX (Polymethylpentene) . |
Manifold Feed Flow Indicator Columns
Manifold Flow Indicator Columns
The Wilger visual ball flow manifold columns are infinitely stackable, so they can be built into any required configuration.
Manifold Flow Indicators come in three different columns sizes, broken down by recommended flow ranges:
Ultra Low Flow Column: 0.01 – 0.24 us gpm flow rates
Low Flow Column: 0.05 – 0.65 us gpm flow rates
Standard Flow Column: 0.07 – 2.70 us gpm flow rates
Isolated Feed Flow Indicators
Isolated Feed Flow Indicator Columns
The isolated feed columns are used to monitor multiple single feed lines. For example, monitoring individual lines coming out of a squeeze pump.
Isolated Feed Flow Indicators come in two different columns sizes, broken down by recommended flow ranges:
Low Flow Column: 0.05 – 0.65 us gpm flow rates
Standard Flow Column: 0.07 – 2.70 us gpm flow rates
O-ring Seal (ORS) Check Valve Bodies
Wilger makes two styles of check valve body, with 4 different shut-off options available for each
O-Ring seal (ORS) to ORS
An ORS male inlet with an ORS female port, allowing for an ORS metering orifice and ORS fitting to complete a manifold assembly.
ORS to Radialock Cap
An ORS male inlet with a radialock cap outlet (see Wilger Pricelist for options), use with metering orifice (#40285-XX series) to complete a manifold assembly.
Diaphragm Check Valve & Shut-off Options for ORS Check Valve Bodies
Diaphragm check valve
Available in 4PSI, 10PSI (standard) and 15PSI versions
Fairprene diaphragms standard. VITON® diaphragms available.
Manual ON/OFF check valve
When ‘ON’, it acts as a 10PSI* check valve.
When ‘OFF’, it turns off the flow completely to that body (*4PSI/10PSI/15PSI options are available)
Fairprene diaphragms standard. VITON® diaphragms available.
Air-Off check valve
Acts as a standard diaphragm check valve, but when an attached air line is charged, it will turn OFF the flow to that body.
Fairprene diaphragms standard. VITON® diaphragms available.
Open thread option
Sharing the same thread as all COMBO-RATE® modules, the open thread is compatible with PWM or other precision ag systems.
Wilger Visual Ball Flow Indicator Benefits
ORS Metering Orifices
O-ring seal metering orifices are accurate and large enough to make them easy to handle, so switching rates is easy.
Custom hole-size orifices and ISO-color coded orifices are available to match any rate required.
Best in Class Clarity
Wilger visual ball flow indicators come standard with the best materials available on the market to make an ultra-clear, UV & chemically resistant flow indicator.
360° Range of Motion
All O-ring sealed fittings can be spun 360° without fear of leaking of pulling out.
This makes installation easy as the fittings pivot to where you need them to point.
Chemical Resistance
Find the below plastic compatibility chart, which compares TPX to other commonly used clear plastics like PVC.
TPX outperforms all other clear polymers in chemical resistance, cold/hot temperature rating, and more.
TPX & Other Plastic Compatibility
The above reference chart and information is not made by Wilger; and as such, cannot be guaranteed for accuracy.
All of the Flow Indicator and O-Ring Seal (ORS) product lines are made specifically for chemical resistance.
With all fittings made out of glass-reinforced polypropylene with VITON® O-ring options, there isn’t much that these flow indicators can’t handle.
Related News or Videos
As a pro-tip for assembling a flow indicator system, using a small amount of lubricant, such as liquid silicone on the o-ring when fitting any ORS components together makes it a breeze.
The clear plastic used to make all Wilger visual ball flow indicator columns is very special. It provides the greatest amount of chemical resistance, while maintaining the best clarity at the same time.
Over time, as with all plastic, it deteriorates in long term exposure to UV (such as the sun). To combat this and to extend the life of the flow indicator columns, Wilger uses a UV inhibitor, but to further extend the clarity of the plastic flow indicator columns, it is best to cover them up whenever in use.
Having a flow indicator column covered from UV will significantly increase the lifespan and clarity of the plastic.
Since there are three ‘flow sizes’ of flow indicators, it is important to know which one you are using, as they look almost identical.
How to tell them apart:
Near the top of the flow indicator, there is a Wilger/shield. A molded WILGER logo will be on one side, and the opposite side will show an identifier for the ‘flow size’ of the column.
STANDARD FLOW COLUMN – FRONT: WILGER LOGO / BACK: WILGER LOGO
LOW FLOW COLUMN – FRONT: ‘LOW FLOW’ / BACK: WILGER LOGO
ULTRA LOW FLOW COLUMNS – FRONT ‘U LO’ / BACK: WILGER LOGO
Don't Forget the New ORS Manifolds
