(Vacuum - Revolving Automatic Doser)

A New Reliable Alternative to dosing pumps (metering pumps)!

• Accurate, repeatable and dependable feed control of liquid chemicals under vacuum (such as Sodium Hypochlorite).
• Metering orifice is self-flushing (will not clog)
• Capacity: Designed For feed rates of 0.1 through 4 Gallon/Hour. Higher Capacities Are Available.
• Provides manual or automatic feed rate adjustment.
• Accepts 4-20 mA input signal for proportional control.
• 4-20 mA output.

Hydro Instruments’ Liquid Feed Systems are in use around the world metering the following chemicals: 
• Sodium Hypochlorite
• Sodium Chlorite
• Hydrochloric Acid
• Sulfuric Acid
• Sodium Bisulfite
• Sodium Bisulfate
• Sodium Thiosulfate
• Liquid Ammonia Sulfate
• Fluoride
• Caustic Soda
etc..

For other chemicals, please consult with us.