Specification VF-1-2-5AV Rev.:4/11/2010

Chemical Injection Technologies
Product/Specification Bulletin
SUPERIOR VacuFeed™ Vacuum Liquid
Chemical Feed System (U.S. Patent No. 7,032,609)
With AutoValve Automatic Control
GENERAL DESCRIPTIONThe SUPERIOR VacuFeed™ with AutoValve, is a state-of-theart Liquid Chemical Feed System designed to allow constant,consistently repeatable metering of liquids into water or waste
water treatment systems, swimming pools, and manyindustrial processes. A highly efficient, water operated
venturi type ejector produces the vacuum necessary tooperate the system. A unique “Triple Bypass” check valve
system prevents pressurized water from entering the liquid
metering system and provides a visual pressure relief todrain. All components operate under a safe, vacuum
condition which prevents chemicals from continuing to feed
into the atmosphere in the event of abreakage. A precision liquid flow meter
panel indicates the amount of liquid being
fed.
Liquid flow rate is automaticallyadjusted to maintain a set point using a 4 20 mA signal from intruments such as,chlorine residual analyzer, pH meter, orwater flow meter.
A spring opposed
diaphragm vacuum regulator controls theliquid flow rate and also acts as a safety
shut-off valve which prevnts any backflow ofwater or chemicals into the chemical storagetank. VacuFeed’s standard models aredesigned to feed either Sodium Hypochlorite(bleach) and Calcium Hypochlorite (granularchlorine) solutions, or Aqueous Ammonia.
Other chemicals may be compatible with thestandard materials of construction. Coupledwith the acclaimed SUPERIOR Autovalve,accurate residuals are easily maintained.

10. Chemical Feeding is constant, rather than in “slugs” aswith pumps.
11. Visual indication of feed rates and chemical flow at alltimes.

FLOW METER CAPACITIESHigh precision variable area flow meters are available withdual English/Metric scale maximum capacities of 2.0, 5.0, 10.0,25.0, and 50.0 gallons per hour, as well as 8.0, 20.0, 40.0, 100
and 200.0 liters per hour, respectively. “Turn down” capability
on all flow meters is 20:1, allowing a wide range of chemical
feed rates to be accomodated.

MODULAR DESIGNSUPERIOR VacuFeed™ Liquid Chemical
Feed System is designed to allow all of
the major components, vacuum
regulator, flow meter panel, checkvalves, AutoValve and ejector to be
removed and serviced or maintained,
without completely dismantling theentire system.

MATERIALS OF CONSTRUCTIONFEATURES

One of VacuFeed’s major competitive
advantages is the use of the finest,strongest and most durable materials
avai l ab l e.
Ex tensi ve use ofFluoroplastics and fiberglass reinforced
thermo-plastics allow VacuFeed towithstand attack by chemicals and to
give the longest operational life. Use ofvery high strength plastics reduces
possibility of cracking due to physicalabuse or overtightening. All elastomers
are specifically chosen to resist swellingand cracking in the liquid medium beingused.

1. VacuFeed is self priming and will not lose
prime, even with negative inlet headpressures.

SYSTEM OPERATIONThe SUPERIOR VacuFeed™ systemrepresents the most modern design
technology coupled with the very bestmaterials available to create an outstanding,user friendly piece of equipment. It is
designed with user safety as a primaryconcern.

2. Design eliminates any possibility of “airbinding” when gasses enter the system, or“out-gassing” occurs. This is particularly
important when feeding Sodium Hypochlorite (bleach).
3. VacuFeed maintains a consistent, high-accuracy liquid feedrate.
4. There are no moving parts, which translates into low
maintenance, easy service, low down time, and low operatingcost.
5. VacuFeed systems are easy to service and maintain withno special tools required.
6. Safe. Will not continue to feed chemicals into theatmosphere in the event of a break or leak in tubing or othercomponent.
7. “Triple Bypass” check valve system has a positive
pressure relief to drain, virtually eliminating any possibility ofbackflow into the chemical storage tank.
9. Extremely high mass transfer efficiency gives excellent
mixing of chemicals with water.
Pub: Specification VF-1/2/5 AutoValve, Rev: 11042010

Water under pressure flows through theejector at high velocity which causes astrong vacuum to be created. This opens
the check valves in the ejector assembly
as well as the secondary “triple bypass”, and transmits
a vacuum signal through the automatic positioning
valve, flow meter tube/rate valve panel and back to thevacuum regulator. When the vacuum reaches a pre-set
level, the diaphragm in the regulator moves to open theinlet safety valve, permitting liquid to flow from thechemical storage tank. The spring-opposed diaphragmand inlet valve regulate the vacuum at this point.
Liquid chemical passes through the flow meter panel
and automatic rate control valve to the ejector. The
chemical mixes with the ejector water and is discharged
through the diffuser into the water being treated.
MODEL
AV-VF-1
AV-VF-2
AV-VF-5

MAX. GPH
10.020.0
50.0

MAX. LPH
40.0
100.0
200.0

Copyright © 2008, Chemical Injection Technologies, Inc.

Printed in U.S.A.

LIQUID COMPATIBILITY (Specify):

SPECIFICATIONS

The liquid chemical feed system shall be SUPERIOR
VacuFeed™ MODEL ______ manufactured by Chemical
Injection Technologies, Inc., Ft. Pierce, Florida, and shallhave a maximum liquid flow rate of _______ gallons perhour (l/hr)of liquid chemical feed and shall be equippedwith a liquid flow meter of _______ gallons per hour(l/hr). The system shall be constructed of materials
designed to withstand the effects of _________________.

Sodium Hypochlorite
Calcium Hypochlorite
Aqueous Ammonia

The liquid chemical feed system shall be of modular
design consisting of a vacuum regulator, flow meter/rate
valve panel, automatic positioning valve, ejector/checkvalve assembly, secondary check valve, and pressure
relief/drain valve. Each of these assemblies shall becapable of being individually removed for maintenanceor service without removing the entire liquid feedsystem.

OPTIONAL ACCESSORIES AVAILABLE

The automatic positioner shall incorporate a flow rate
control valve made of fluoroplastic material which isinert to the corrosive effects of chemicals being fed.
Design shall provide for full closing of the rate valve
without engaging the control surfaces, to prevent
damage. Automatic residual, flow proportioning, andcompound loop control modes shall be incorporated in
the electronic controller as standard.
Vacuum shall be created by a fixed-throat venturi/ejector
system connected directly to the chemical solution
diffuser. A dual high-pressure/low-pressure check valve
system shall prevent water from entering the liquid feedsystem. The ejector assembly shall be capable ofwithstanding water pressure up to 300 PSIG (20.7 Bars).
The system shall incorporate a spring opposed
diaphragm vacuum regulator which shall maintain a preset vacuum upstream of the flow meter/rate control
valve panel. The vacuum regulator inlet valve shallclose tight upon loss of operating vacuum, and allow
start/stop operation without change in the liquid flow
rate. Liquid chemical feed rate shall not be affected bychanges in chemical storage tank levels, by variationsin ejector supply water pressures, or by variations inejector backpressure.
Pub: Specification VF-1/2/5 AutoValve, Rev: 11042010

Sodium Bisulfate
Other (Consult Factory)

STANDARD ACCESSORIES
25 ft. - 3/8" drain tubing
1 - Drain insect screen

Inlet Water Assembly
Residual Analyzers
Booster pumps
Automatic Controls
Chlorine Comparators

Gas Masks
Gas Detectors
ScalesGaugesOthers Available

OTHER SUPERIOR™ SYSTEMS AVAILABLE
AUTOMATIC SWITCHOVER GAS CHLORINATORSMULTIPLE-POINT GAS CHLORINATORS
200 PPD (5 KG/HR)
500PPD (10 KG/HR)GAS SULFONATORS (DECHLORINATOR)AMMONIATORSAUTOVALVE AUTOMATIC FLOW PROPORTIONINGAUTOVALVE AUTOMATIC RESIDUAL CONTROLAUTOVALVE AUTOMATIC COMPOUND LOOP CONTROLWATERGUARD COLORIMETRIC ANALYZERSWATERGUARD AMPEROMETRIC ANALYZERS

Chemical Injection Technologies, Inc.
835 Edwards Rd., Ft. Pierce, FL, 34982, USA(772) 461-0666
Fax: (772) 460-1847
E-Mail: superior@chlorinators.com
www.chlorinators.com

Copyright © 2008, Chemical Injection Technologies, Inc.

Printed in U.S.A.