Clean, Dry Air – And No Frozen Air Brakes
Expello Air Products keep water, oil and dirt out of compressed air. Their drain valves purge vehicle air tanks and workshop compressors automatically, and the Stark air dryer filters, coalesces and cools the air before it reaches the brakes. Norman G Clark supplies Expello in Australia.
Not sure what you need? Call (03) 9116 9200 and talk it through with our team.
Solutions
What Do You Need to Do?
Trucks, trailers & buses. Air brake systems on the road.
Mining & construction. Off-highway machines with air systems.
Workshops. Shop air compressors.
Drain Vehicle Air Tanks
Replace manual petcocks on trucks, trailers and buses.
The range
Expello Products
Drain vehicle air tanks
Electronic Drain Valve
Purges the air tank with a 1-second burst every 5 minutes of vehicle running time.
1 s purge every 5 min
Drain vehicle air tanks
Pneumatic Drain Valve
Purges the tank every time the compressor cycles – optional heater.
Optional 50 W heater
Dry and filter the air
Stark Air Dryer
Filters, coalesces and cools the air – removes 99.9% of compressor oil.
36 CFM
Drain a workshop compressor
Shop Valve
Automatic drain for workshop air compressors, run from the governor.
Line and fittings included
How it works
Why Drain the Air Tanks?
Water, oil and dirt ruin air systems.
Contamination Builds Up
Compressed air carries water, compressor oil, carbon and rust into the air tanks. No system removes all of it all of the time, and manual petcocks rely on someone pulling the chain.
What It Costs
Left in the tanks it freezes in winter, corrodes cylinders, sticks valves, washes out lubrication and damages brake components – and frozen air brakes stop the vehicle.
Drain Automatically
An Expello valve replaces the petcock and blows the contaminants out with a short, powerful burst – on a timer (electronic) or every time the compressor cycles (pneumatic). Its straight-through design means the valve itself doesn’t collect moisture or debris.
Why Expello, through Norman G Clark
Protect the Air System
No Frozen Brakes
Automatic draining and optional heaters stop winter freeze-ups.
Longer Component Life
Prevents corrosion, sticking valves and brake drum damage.
Easy to Fit
Replaces the existing drain petcock.
Local Support
Norman G Clark supplies valves, dryers and service kits – call (03) 9116 9200.
Literature
Catalogues and Data Sheets
Instructions
- Stark air dryer – installation and parts
Mounting, plumbing, checks, troubleshooting and repair parts · PDF, 847 KB
Talk to Us About Your Application
Tell us about the job – the machine, the conditions and what it has to do – and we’ll help you choose the right Expello product.