Chlorination and gas feed systems are commonly used for disinfection in water, wastewater, and industrial wastewater applications. They’re also used to disinfect aquatic water in swimming pools and make water potable. It’s also used as a bleach in the manufacture of paper, cloth, solvents, pesticides, synthetic rubber, refrigerants, and other commercial products as well as a disinfectant in industrial processing plants for foods like meat and poultry.
The Characteristics of Chlorine
In water, chlorine forms hydrochloric and hypochlorus acid. It becomes a strong acid, corrosive and oxidizer and will attack rubber, plastic, various coatings and metals if it comes into contact. Chlorine is not combustible on its own, but can react explosively or form explosive compounds with many common substances (ammonia, ether, hydrogen, and fuel gas are just a few examples). Housing containers and chlorine-based mixtures can explode if heated. It may also ignite combustible materials like wood, paper, oil and clothing.
Chlorine and Industrial Processes
Steel cylinders of liquefied chlorine gas are used in many industrial processes, but because of the nature of chlorine, the equipment that handles the raw material is especially susceptible to corrosion. Corroded equipment can have a significant impact on the productivity and effectiveness of an industrial process. It can affect the accuracy of formulated products, shipping weights and costs, and even create a safety risk for individuals working with or near the damaged equipment.
If too much chlorine is added to aquatic water, it can cause rashes and irritation on bathers. Too little chlorine in drinking water can make it unsafe to drink. Scales are often incorporated into the systems that feed chlorine gas to ensure that just the right amount of gas is being introduced and monitor the level of gas left in the cylinder so the flow is never interrupted.
Corrosion Resistant Arlyn Cylinder Scales
While other scale manufacturers use simple sheet metal to construct their cylinder scales, which leaves them vulnerable to rust and corrosion, we use welded stainless steel for a rugged, more durable product.
We also use a special coating that actually protects your scale, unlike enamel paint. Infused with garnet particles, our polyamine-based triple epoxy coating shields your scale from the scratches and abrasion that tear and chip enamel paint away and leave your scale vulnerable. Once that paint is removed, corrosive agents can find their way underneath the coating and migrate to other areas of the scale unseen.
If those corrosive materials get inside your scale, they can destroy the internal components responsible for the accuracy of your measurements. Load cells are often the most vulnerable because many manufacturers use a basic aluminum construction. But because the load cell is the most important internal component of your scale, we use rugged stainless steel on these components as well. We even coat the electronics with a thin layer of silicone to further protect them from corrosive fumes and liquids.
Not only do our stainless steel load cells protect your scale from corrosion, they also make them better able to handle tough industrial environments, protect them from shock and overloading, and makes them more accurate.
Ultimately, our welded stainless steel construction, heat-treated stainless steel load cells, and garnet infused triple epoxy work together to provide you with years of accurate, trouble free service.
Your Options: Standard and Custom Sizing
We offer a variety of standard capacity and platform sizes which are suitable for most chlorine gas feeding operations, but should you require a more custom solution, Arlyn Scales is a factory direct manufacturer, which means we can design and build a model that actually meets your needs. We even offer custom size platforms at no added cost so you can get the size you need without paying extra for the convenience others find with standard solutions.
For our cylinder scales, standard capacities, resolutions and platform sizes are:
| Capacity | Resolution | Platform Size |
| 60 lbs | 0.02 lb | 9.25 in.2 or 14 in.2 |
| 300 lbs | 0.1 lb | 9.25 in.2 or 14 in.2 |
| 400 lbs | 0.1 lb | 9.25 in.2 or 14 in.2 |
Each option can be purchased with a 4 – 20 ma output, a completely digital indicator, or both. You can also choose more modern outputs like USB, Ethernet and Wi-Fi.
Optional Set Point Controller
If you’re running an automated gas feed system, our set point controller will allow you to program your entire system based on the weight measurements of your gas cylinders. You can set up to 8 target weights, which can be used to create an alert system or operate other equipment such as feeders, mixers, motors, valves, and solenoids.
ArlynGuard for Explosive Environments
If you work in an OSHA classified environment because of the other substances you use alongside chlorine, your needs may be a little different. Aside from additional corrosion resistance, your scale will also need to be manufactured so that it cannot become a source of ignition.
Our ArlynGuard B, C, F, and P scales have one or more components that have been tested and approved to be Intrinsically Safe for use in an impressive range of hazardous locations including:
• Intrinsically safe for use in Class I, II, III; Division I; Groups A through G
• Non-incedive for use in Class I; Division II; Groups A through D
• Suitable for use in Class II; Division II; Groups F & G
• Suitable for use in Class III; Division II
Each ArlynGuard scale is equipped with one or more of:
• Model MKE-5-IS(-C) Digital Weight Indicator System
• Load Cell Models 620-300-IS, 620-100-IS, 620-50-IS, 620-25-IS, 620-10-IS, 520-10000L-IS, 520-5000L-IS, 520-5000IS, 520-2500-IS, 520-1250-IS, 320-500-IS and 320-250-IS
which are FM Approved components as per Approval Standard 3600, 3610, 3611 and 3810.
This means you get a scale that’s safe to use in a classified hazardous location along with our full stainless steel construction (including load cells), proprietary triple epoxy, and high accuracy measurements.
Extremely Low Profiles
No matter what scale you use, we offer some of the lowest profile models in the industry, which makes loading and unloading a quick, simple, and painless task. We can even include on/off ramps to make it even easier.
Which Scale is Right for Your System?
If you’re not sure which scale best meets your needs, or you require custom options, contact us today! Our support team is standing by to answer your questions and help guide you to the scale that best meets your needs. We can also discuss possible options for a custom solution that will work for you.
