Hydro Instruments Technology Pte Ltd

60 Paya Lebar Road #09-25
Paya Lebar Square, Singapore 409051
Tel: +65 822-31377
Fax: +65 6385-5283
Email: sales@hydroinstrument-sg.com
Web: www.hydroinstrument-sg.com
1. Automatic Small Capacity System
V-RAD by Hydro Instruments
(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.
2. Large Capacity System
LF Series by Hydro Instruments
A Reliable Alternative to dosing pumps (metering pumps)!

All vacuum, No Moving Parts, No Oil & No Electricity!
• More reliable than dosing pumps (metering pumps)!
• Usable 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 for liquid chemical 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.
LF Series by Hydro Instruments
• Designed for Polyaluminum Chloride (PAC)
• Chemical is fed under vacuum.
• Full Automatic Control
• More reliable than metering pumps.
• Available feed rates up to 12.5 GPM
(12.5% Sodium Hypochlorite Calculations):
• GPM x 0.012 x PPM = GPD
List of Liquid Chemical Supported
Hydro Instruments’ Liquid Feed Systems are in use around the world metering the following chemicals:
• Sodium Hypochlorite
• Sodium Chlorite
• Polyaluminum Chloride (PAC)
• Hydrochloric Acid
• Sulfuric Acid
• Sodium Bisulfite
• Sodium Bisulfate
• Sodium Thiosulfate
• Liquid Ammonia Sulfate
• Fluoride
• Caustic Soda

For other chemicals, please consult with us.
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