GAS AMMONIATOR
SERIES NHM-1
The SUPERIORTM Series NHM-1 Ammoniator is a state-of-the-art, vacuum-operated, solution feed type that mounts directly on an ammonia cylinder valve.
The ammoniator is mounted onto the ammonia cylinder valve using a very heavy-duty, positive yoke clamp connection.
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An ammonia gas flow meter indicates the amount of ammonia being fed. Ammonia flow rate is manually adjusted, and the design permits easy addition of a number of automatic flow rate control devices.
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A high-efficiency, water-operated ejector produces the vacuum necessary to operate the system. The ejector assembly contains a back-flow check valve system to prevent pressurized water from entering the chlorinator.
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A spring-opposed diaphragm vacuum regulator controls the ammonia gas flow rate and also acts as the safety shut-off valve.
NH-1 TYPICAL INSTALLATION
FEATURES
The SUPERIORTM Series NHM-1 represents the most modern design technology coupled with the very best materials available to create an outstanding, user-friendly piece of equipment. It is designed with user safety as a primary concern.
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A new ultra-thick, fluoroplastic yoke coating gives SUPERIORTM corrosion resistance—won’t crack, peel, or chip. Ammonia will not diffuse through it to cause coating bubbling and peeling.
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All molded parts are fiberglass-reinforced ABS plastic, designed for SUPERIORTM strength, warp resistance, and ammonia resistance.
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The rate valve “seat” is stainless steel and will not swell, stick, or become brittle with age or exposure to liquid ammonia.
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All external bolts and nuts are Titanium for complete corrosion resistance—a SUPERIORTM exclusive. Extra heavy-duty outlet threads on the ejector diffuser prevent accidental breakage from over-tightening or “bumping” of the ejector assembly.
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The “universal” ejector diffuser allows use of high-pressure solution hose, direct ejector mounting in mains, or in-line.
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Easier to service and perform routine maintenance, with standard-size wrench lugs provided on all screwed-together parts.
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All vacuum fitting holes are heavily reinforced to prevent the possibility of cracking from over-tightening fittings.
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“Dual-pressure” check valve is standard on all SUPERIORTM Ammoniators. Proven high back-pressure unitized check valve design protects against sudden surges up to 300 PSIG, while a spring-loaded diaphragm check provides positive shutoff even when there is no back-pressure to force the seat closed.
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PVDF vacuum tubing fittings are standard—another SUPERIORTM exclusive. “User-friendly” design makes it easy to attach tubing and to tighten or loosen ferrule nuts without tools.
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Fewer parts, combined with superior materials and a superior design, give you a SUPERIORTM Ammoniator.
NHM-1 FLOW DIAGRAM
SYSTEM OPERATION
The vacuum regulator is securely clamped onto the ammonia cylinder valve.
Water under pressure flows through the ejector at high velocity, which causes a strong vacuum to be created. This opens the check valves in the ejector assembly and transmits a vacuum signal through the meter tube/rate valve panel back to the vacuum regulator.
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When the vacuum reaches a pre-set level, the diaphragm in the regulator moves to open the ammonia inlet safety valve, permitting gas to flow from the ammonia cylinder. The spring-opposed diaphragm and inlet valve regulate the vacuum at this point.
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Ammonia gas passes through the 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.
MODULAR DESIGN
SUPERIORTM Ammoniators have been designed to give maximum flexibility in system installation.
The vacuum regulator and metering tube panel are close-coupled and mounted onto the ammonia cylinder valve as a single assembly. The ejector can be located wherever plumbing and/or hydraulic conditions make it most desirable.
The modular design also makes it easy and inexpensive to expand or upgrade the system.
The metering tube panel may be detached from the vacuum regulator at any time—in just a few minutes—if future requirements or safety dictate a remote metering application, or if multiple-point chlorination is desired.
FLOW METER CAPACITIES
Variable area flow metering tubes are available with dual English/Metric scale maximum capacities of 0.8, 1.5, 5, 10, 25, 50, and 100 pounds per 24 hours of ammonia gas, as well as 15, 30, 75, 200, 500, 1000, and 2000 grams per hour, respectively.
All metering tubes are interchangeable and may be changed in the field without special tools.
MATERIALS OF CONSTRUCTION
One of SUPERIOR’s™ major competitive advantages is the use of the finest, strongest and most durable materials available. Extensive use of Fluoroplastics and fiberglass reinforced thermo-plastics allow SUPERIOR™ Ammoniators to withstand attack by Ammonia in any form and to give the longest operational life. Many parts are guaranteed for the life of the equipment against Ammonia damage.
SPECIFICATIONS
The Ammoniator shall be SUPERIORTM MODEL NHM-1, manufactured by Chemical Injection Technologies, Inc., Ft. Pierce, Florida, and shall have a maximum capacity of _______ pounds per day / gr/hr of ammonia feed and shall be equipped with an ammonia flow meter of _______ pounds per day / gr/hr.
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The ammoniator shall consist of a close-coupled vacuum regulator/flow meter and ejector/check valve. Each of these assemblies shall be capable of being individually located wherever safety and/or operator convenience dictates.
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The vacuum regulator/flow meter assembly shall be capable of being separated into independent vacuum regulator and metering panel assemblies at any time for remote metering or multiple-point applications.
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The vacuum regulator/flow meter shall mount directly on the cylinder valve 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 the cylinder.
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The cylinder valve/chlorinator inlet adaptor shall be constructed of stainless steel material, which shall be inert 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.
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A ceramic filter shall be installed in the vacuum regulator inlet and shall be capable 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.
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The vacuum regulator/flow meter bodies shall be constructed of fiberglass-reinforced thermoplastic material and shall incorporate a flow rate control valve made of fluoroplastic material, which is inert to the corrosive effects of ammonia. The rate valve metering tip shall be constructed of K5 Alloy. 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 high-pressure/low-pressure check valve system shall prevent water from entering the gas system.
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The ejector assembly shall be capable of withstanding water pressure up to 300 PSIG (20.7 Bars). A universal-type 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.
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SPECIFICATIONS
STANDARD ACCESSORIES
25 ft. - 3/8” Vent & Vacuum Tubing
10 - Lead Cylinder Connection Gaskets
1 - Cylinder Wrench
1 - Vent insect screen
OPTIONAL
ACCESSORIES AVAILABLE
Wall Manifold Kits
Residual Analyzers
Automatic Controls
Ton Container Adaptors
Check Valve A
Gas Masks
Gas Detectors
Scales
Gauges
Ball Check Valve
Safe-T-Close, ESD
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OTHER SUPERIOR™
SYSTEMS AVAILABLE
VACUFEED LIQUID CHEMICAL FEED SYSTEMS AUTOMATIC SWITCHOVER GAS CHLORINATORS
MULTIPLE-POINT GAS CHLORINATORS
250 POUNDS PER DAY (5 KG/HR)
500 POUNDS PER DAY (10 KG/HR)
GAS SULFONATORS (DECHLORINATOR)
MULTI-POINT AMMONIATORS
AUTOMATIC FLOW PROPORTIONING
AUTOMATIC RESIDUAL CONTROL
SUPERIOR™ Gas Chlorinators are proudly made by Chemical Injection Technologies, Inc.
835 Edwards Road, Fort Pierce, Florida 34982 USA. T: 772-461-0666.