Specification NH-15 Rev.:4/11/2010

Chemical Injection Technologies
Product/Specification Bulletin
SUPERIOR™ Modular Automatic Switchover
Ammoniator, Series NH-15
Direct Cylinder Mounted - All Vacuum
GENERAL DESCRIPTIONThe SUPERIOR™ Series NH-15 Modular Automatic Switchover
Ammoniator is a state-of-the-art, totally vacuum-operated systemdesigned to automatically switch Ammonia feed from an empty
cylinder to a full cylinder. The Series NH-15 allows round-the-clockchlorination without being concerned about running out of Ammonia
when the system is unattended. Series NH-15 chlorinators are of thevacuum-operated solution feed type designed to mount directly on
Ammonia cylinder valves. A vacuum operated switchover module
is mounted on the wall and connected to both Ammonia vacuum
regulators. A Ammonia gas flow meter panel indicates the amountof Ammonia being fed and may be located wherever it is safest andmost convenient. Ammonia flowrate is manually adjusted and thedesign permits easy addition of anumber of automatic flow rate
control devices. A high efficiency,
water operated ejector produces thevacuum necessary to operate thesystem.
The ejector assembly
contains a back-flow check valve
system to prevent pressurized waterfrom entering the chlorinator. A
spring-opposed diaphragm vacuum
regulator controls the Ammonia gas
flow rate and also acts as the safety
shut-off valve.

10. Automatic Reset - The SUPERIOR™ Modular Automatic
Switchover Gas Chlorination system requires no manual reset of theswitchover module once the empty source is replaced with a newsource.
11. Fewer parts, combined with SUPERIOR™ materials and aSUPERIOR™ design gives you a SUPERIOR™ Ammoniator.

FLOW METER CAPACITIESSUPERIOR'S modular design concept allows the Ammonia gas
indicating meter and flow rate control valve to be located wherever it
is most convenient for the operator, and also in the safest location.
Variable area flow metering tubes
a r e a v a i la b le w i t h d u a lEnglish/Metric scale maximum
capacities of 0.8, 1.5, 4, 10, 25, 50
and 100 pounds per 24 hours ofAmmonia gas, as well as 15, 30,75, 200, 500, 1000 and 2000
grams per hour, respectively. All
metering
tubes
areinterchangeable and may bechanged in the field without
special tools.

MATERIALS OFCONSTRUCTIONFEATURES

One of SUPERIOR™'S major
competitive advantages is theuse of the finest, strongest andmost durable materials available.
Extensive use of Fluoroplastics
and fiberglass reinforced
ynthermo- p la st i c s allow
SUPERIOR™ Ammoniators towithstand attack by Ammonia in
any form and to give the longer
operational life. Many parts areguaranteed for the life of theequipment against Ammonia
damage.

The SUPERIOR™ Series NH-15
represents the most modern design
technology coupled with the very
best materials available to create an
outstanding, user friendly piece ofequipment. It is designed with user
safety as a primary concern.
1. A new ultra-thick, fluoroplastic
yoke coating gives SUPERIOR™
corrosion resistance, won't crack,peel or chip.
2. All molded parts are fiber-glass reinforced ABS plastic, designed
for SUPERIOR™ strength, warp-resistance and Ammonia resistance.
3. The rate valve "Seat" is pure fluoroplastic and will not swell, stickor become brittle with age or exposure to liquid Ammonia.
4. All external bolts and nuts are Titanium for complete corrosion
resistance..a SUPERIOR™ exclusive.
5. Extra heavy-duty outlet threads on the ejector diffuser prevents
breakage from over-tightening or "bumping" of the ejector assembly.
6. Easier to service and perform routine maintenance, with standard
size wrench lugs provided on all screwed-together ejector parts.
7. All vacuum fitting holes are heavily reinforced to prevent thepossibility of cracking from over-tightening fittings.
8. "Dual-pressure" check valve is standard on all SUPERIOR™
Ammoniators. Proven high back-pressure unitized check valve
design protects against sudden surges up to 300 PSIG while aspring-loaded diaphragm check provides positive shutoff even when
there is no back-pressure to force the seat closed.
9. Switchover Module has been totally re-designed to prevent
sticking, misalignment or wear on internal parts. Up to 20% fewer
parts than other designs means greater reliability.

Pub: Specification NH-15, Rev11042010

SYSTEM OPERATION

The vacuum regulators are securely clamped onto the Ammonia
cylinder valves. Vacuum tubing connects each regulator to the wall
mounted automatic switchover module. A single piece of vacuum
tubing connects the outlet of the module to the wall mounted remotemeter tube/rate valve panel. The ejector is connected to the remotemeter panel with a single piece of vacuum tubing.
Water under pressure flows through the ejector at high velocity
causing a strong vacuum to be created. This opens the check valvesin the ejector assembly and transmits a vacuum signal through theremote meter tube/rate valve panel, through the switchover moduleand back to the vacuum regulator. When the vacuum reaches a preset level, the diaphragm in the regulator moves, opening theAmmonia inlet safety valve, and permits gas to flow from theAmmonia cylinder. The spring-opposed diaphragm and inlet valve
regulate the vacuum at this point.
Ammonia gas passes through the automatic switchover module,
remote flow meter panel and rate control valve to the ejector. The
gas mixes with the ejector water and is discharged through the
diffuser into the water being treated.
When the Ammonia supply is depleted in one source, vacuum starts
to increase in the system creating a differential across the diaphragmin the switchover module. This overcomes a spring loaded toggle
assembly and the unit then switches over permitting Ammonia gas toflow from the full source.

Copyright © 2002, Chemical Injection Technologies, Inc.

Printed in U.S.A.

SPECIFICATIONS

The chlorinator shall be SUPERIOR™ MODEL NH-15 manufactured by
Chemical Injection Technologies, Inc., Ft. Pierce, Florida, and shallhave a maximum capacity of _______ pounds per day (gr/hr)ofAmmonia feed and shall be equipped with a Ammonia flow meter of_______ pounds per day (gr/hr).
The chlorinator shall be of modular design consisting of two (2)vacuum regulators, one (1) vacuum operated switchover module, one(1) flow meter/rate valve panel, and one (1) ejector/check valve. Eachof these assemblies shall be capable of being individually locatedwherever safety and/or operator convenience dictates.
The vacuum regulators shall mount directly on the Ammonia cylinder
valves by means of a positive yoke type clamp having an integral
tightening screw with slide bar handle. No wrenches or other tools
shall be required to mount or dismount the vacuum regulator from theAmmonia valve. The Ammonia valve/chlorinator inlet adaptor shall be
constructed of corrosion-proof fluoroplastic material which shall beinert to the effects of wet, dry or liquid Ammonia. The inlet safety
shut-off/vacuum regulating valve shall be of capsulated design, easily
removable as a unit from the outlet side of the yoke. A fluoroplastic
filter shall be installed in the vacuum regulator inlet and shall becapable of removing impurities greater than 25 microns. A pressure
relief valve shall be incorporated into the vacuum regulator to prevent
pressure from building up in the system. All external screws and nuts
shall be made of Titanium to prevent corrosion.
The switchover module shall be vacuum operated and shall be factorypre-set, not requiring field adjustment.
The module shall
automatically change Ammonia feed from an empty Ammonia
cylinder to a full cylinder, with no manual resetting required afterswitchover has been made and the empty cylinder replaced.
The flow meter/rate control valve panel shall be capable of mounting
wherever it is safest and most convenient for operating personnel.
The panel shall be constructed of fiberglass reinforced thermoplastic
material and shall incorporate a flow rate control valve made offluoroplastic material which is inert to the corrosive effects ofAmmonia. The rate valve metering tip shall be constructed of fine,hard-drawn silver. Design shall provide for full closing of the rate
valve without engaging the control surfaces, to prevent damage.
Vacuum shall be created by a fixed-throat venturi/ejector system
connected directly to the Ammonia solution diffuser. A dual highpressure/low-pressure check valve system shall prevent water fromentering the gas system. The ejector assembly shall be capable ofwithstanding water pressure up to 300 PSIG (20.7 Bars). A universaltype Ammonia solution diffuser shall be provided which shall allow
close-coupling of the ejector to a water main, use of flexible solution
hose or rigid solution pipe without the use of special adaptors.

STANDARD ACCESSORIES
50 ft. - Vent & vacuum tubing
20 - Lead cylinder connection gaskets
1 - Cylinder Wrench
1 - Vent Insect Screen

OPTIONAL ACCESSORIES AVAILABLE
Inlet Water Assembly
Wall manifold kits
Booster pumps
Residual Analyzers
Automatic Controls
Ton Container Adaptors

Gas Masks
Gas Detectors
ScalesGaugesChlorine ComparatorsOthers Available

OTHER SUPERIOR™ SYSTEMS AVAILABLE
MULTIPLE-POINT AmmoniatorSGAS SULFONATORS (DECHLORINATOR)GAS CHLORINATORSAUTOMATIC FLOW PROPORTIONING
AUTOMATIC RESIDUAL CONTROL____________________________________________

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____________________________________________