1. WILDEN ADS Market Position Features Application Traits Availability
3 inch P-series discontinued per TB 1541
Market Position
Features
Application Traits
Availability
Maximum reliability
Process applications
Max. mean time between repairs
Plastic air system required
Plastic C-section and Air Valve
Plastic air chambers in multiple sizes
Non-stalling unbalanced spool
Few replaceable parts
On/Off reliability
Longest-lasting wear parts
Lube-free operation
Anti-freezing
6 mm (1/4”)
13 mm (1/2”)
25 mm (1”)
38 mm (1 1/2”)
51 mm (2”)
76 mm (3”)
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2. WILDEN ADS Market Position Features Application Traits Availability
The PX is Wilden’s newest ADS.
Market Position
Features
Application Traits
Availability
13 mm (1/2”)
25 mm (1”)
38 mm (1-1/2”)
51 mm (2”)
76 mm (3”)
102 mm (4”)
Superior anti-freezing
On/Off reliability
EMS (Efficiency Management System)
reduce processing costs
Dial up efficiency
AL, SS, PP C-block and Air Valve
control dial for efficiency
Single point exhaust Option
Submersible Option
Few Replacement Parts
Maximum reliability
Wet air supply tolerant
NFPA/UV stabilized
Efficiency is priority
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3. Pro-Flo® Air Distribution Systems HOW IT WORKS
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4. Pro-Flo ADS Operation
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5. The Unbalanced Spool The large end of the air valve spool has
Intermittent
Air Pressure
Constant
Air Pressure
The large end of the air valve spool has
more surface area than the small end.
Force = pressure x area
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6. How It Works To Exhaust Compressed Air Piston Down Left Power Port
Small End
Air Supply
Main Air Supply
Right Power Port
Compressed Air
Behind Diaphragm To
Atmosphere
From
Compressor
From
Compressor
Air Supply Groove
To Atmosphere
To Exhaust
Compressed Air
Pilot Supply
Piston Down
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7. To Exhaust Compressed Air Piston Up Left Power Port Small End
From
Compressor
To Exhaust
Compressed Air
Air Supply Groove
Pilot Supply
Small End
Air Supply To
Atmosphere
Exhausted Air From
Behind Diaphragm
Left Power Port
Main Air Supply
Right Power Port
Piston Up
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8. Inner Piston/ Large end of Air Valve Spool Pilot Spool Inner Piston
To Exhaust
Compressed Air
Large end of
Air Valve Spool
Pilot Spool
Inner
Piston
Inner Piston/
Air Inlet
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9. Inner Piston/ Large end of Air Valve Spool Pilot Spool Inner Piston
To Exhaust
Compressed Air
Large end of
Air Valve Spool
Pilot Spool
Inner
Piston
Air Inlet
Exhaust to
Atmosphere
Inner Piston/
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10. Key take-away when working on the Pro-Flo air distribution system:
Pilot spool must be removed and installed from the notched end
Air valve spool must not be out of the air valve body for more than a few minutes for cleaning, inspection and re-lubing (the seals are ‘energized’ and will expand)
Pilot spool must not be out of the pilot sleeve for more than a few minutes for cleaning, inspection and re-lubing (the seals are ‘energized’ and will expand)
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