D&D Instruments

• Purges every time the compressor cycles (requires actuation line)
• Compact design fits air tanks on all trucks and busses
• Replaces manual drain petcocks (never pull another chain to drain the tank)
• Automatically purges moisture and contaminates
• Prevents freeze-ups with 50-Watt heater (optional)
• Prevents brake drum damage
• Prevents cylinder corrosion
• Prevents sticking valves and loss of lubrication
• Reduces noise and vibration due to contaminated air systems
• Full One-Year Warranty

The Expello Pneumatic Drain Valve provides long lasting, durable air system protection. This drain valve expels build-up of harmful contaminants in air tanks on trucks, trailers, buses, RV's and other equipment with compressed air systems. No system eliminates all the moisture from the wet tank all the time. This drain valve expels contaminants from your air tanks with a powerful blast of air whenever your compressor reaches cut out and at compressor cut in. The 50 watt heater with built in thermostat provides year round protection even in the coldest conditions.

Installation Intructions
Expello Pneumatic Drain Valve - All components of the Expello Electronic Drain Valve are covered by a one - year unlimited mileage warranty.