A Reliable Alternative to dosing pumps (metering pumps)!

• All vacuum, No Moving Parts, No Oil & No Electricity!
• Chemical is fed under vacuum.

• More reliable than dosing pumps (metering pumps)!

• Usage to feed a variety of liquid chemical solutions (including Sodium Hypochlorite, Sodium Bisulfite and other liquid chemicals).

• High Quality Solid Machined Construction Venturi Ejector for maximum durability (will not warp / crack).
• Alternate materials of construction available.
• Includes check valve assembly to prevent backflow.
• Various orifice sizes and alternate inductor designs available.

• Available feed rates from 0.1 Gallon/Hour up to 600 Gallon/Hour (1.8 Liter/Hour up to 2,271 Liter/Hour).
• (12.5% Sodium Hypochlorite Calculations): GPM x 0.012 x PPM = GPD.

Options and Additional Features:
• Full Automatic Control Options.
• Automatic Control Options.
• Manual Control Options.

Hydro Instruments’ Liquid Feed Systems are in use around the world metering the following chemicals: 
• Sodium Hypochlorite

• Polyaluminum Chloride (PAC) 

• Alum

• 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.