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What is UAN? Urea Ammonium Nitrate Solution (UAN) is a colorless liquid with a slight ammonia odor that is produced by combining urea, nitric acid, and ammonia into a liquid solution. Farmers prefer UAN because it can be applied more uniformly than non-liquid forms of fertilizers.
In the United States, UAN is transported via rail, truck, and barge. It is typically a splash loading operation when loaded into trucks or railcars via loading arms. UAN itself does not pose an inhalation hazard. However, decomposition of UAN may produce nitrogen oxide and ammonia vapor, so operator diligence of vapors must be observed. Vapor recovery, while not required, should be considered while operators are on top of the vehicles during the loading process to further increase the level of safety during the loading/unloading process.
UAN is typically transported in 20,500-gallon tank cars. The rails cars themselves are 9′ outside diameter with an overall length of ~47′, with offset crashbox openings of varying length and widths.
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Our experts simplify the complexBulk Chemical Specialist
“As subject matter expert, I’ll leverage my years of experience as your personal consultant throughout the project to ensure you get a world-class solution.”Ray Evans-Bulk Chemical Market SpecialistContract# 47QSAWA19D0085View Full Text
Typically, as a starting point, we will need to know answers to these questions for your project
- The Railcar connection locations need flexibility – Do you know what the breadbasket connections look like?
- Are you using liquid and vapor arms/hose as two separate devices or a piggyback arm?
- Is the loading station indoors or outdoors?
- Is the loading area temperature controlled?
- How are you going to spot your railcars
Our highly trained technical sales team will undertake a detailed site survey prior to undertaking any work to check and clarify all dimensions, obstructions, access issues and other salient points. Our challenge is to provide the safest working environment – protecting operators and the equipment – while simultaneously enabling you to improve throughput and productivity.
Your Project Needs
Whether you are looking for a turn-key installation, on-site supervision or a maintenance program, SafeRack is positioned to assist you. We can do as little or as much as you need. Our project management and supervision team is the best in the business at supporting your company’s needs.
- Collaborative Design – Our loading platform specialists will work with you one on one, if you design to design the best loading solution for your specific needs
- Contract review – drawings and associated documents relating to the contract prior to site arrival
- Risk Assessment – Undertaking a site risk assessment
- Shipment Inspection – Detection of any shipping damage or abnormalities
- Material Receiving – Supervised off-loading and transport at site
- Installation Management – Supervised Installations and Coordination
- Start-up & Commissioning – On-site training for both users and maintenance personnel
Generally speaking, SafeRack recommends rigid pipe loading arms where possible for the following reasons:
- Balanced throughout their movement envelope
- Designed not to hit the ground – protecting the asset and the operator
- Ergonomic – one man operation
- Fitted with manual or actuated valves.
- Fitted with optional purge/vent facilities
- Can be moved into position with ease and left hanging in the air while the operator prepares the tanker connection
- Parked neatly
- Annual pressure test
- Are difficult to stow neatly when not in use
- Can be dropped
- Can be driven over
- Are very heavy to use if fitted with a valve at the tanker connection point
- Cannot be easily heated or have vent/purge valves fitted to it
- Prone to catastrophic failure
Typical UAN Loading Platform
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Below are some of the loading and unloading solutions for illustrative purposes only. Our experts will work with you and your team for a custom solution to suit your needs.
UAN Loading Arms
UAN is not a hazardous product, but it is extremely corrosive to zinc, copper, brass, bronze, and iron. Aluminum and carbon steel are less susceptible, but stainless steel is the widely accepted material of choice for loading systems. Couple the arm with PTFE seals and you have a good combination of corrosion-resistant materials that will hold up to the rigors of UAN loading.
UAN is generally not considered an inhalation hazard. Therefore, vapor recovery is not mandated but recommended in facilities in close proximity to populated areas.
Loading Gangways and Safety Cages
A wider access gangway (36″-48″ is preferable) as it helps improve access and egress to and from the vessel. In addition, a wider gangway will reduce the risk of the operator’s PPE getting caught, torn or damaged, and will improve productivity and safety. Powered gangway solutions are also an option, with both hydraulic and pneumatic solutions being commonly used.
Each gangway will be fitted with a two-rail safety cage for the railcar crash box. This will be a centered 7’x8’ safety cage to sit directly over the cashbox. This will provide a safe, secure work environment for your operator when connected to their breathing apparatus
GX SELF-ADJUSTING STAIR (SAS) GANGWAY
SafeRack’s NEW GX SAS gangways uses Retractalok power-assist technology allowing operators to raise or lower effortlessly, light as a feather to lift, solid as a rock. Tested in the most critical applications, this revolutionary new gangway outperforms all others. Available in multiple lengths and widths. Learn More
UAN Eye Wash/Drench Showers
ANSI guidelines state that an Eye Wash/Drench Showers need to be located 10 seconds or 55’ (16.8m) from contaminants or hazardous materials.
Eyewash stations need to be on the same horizontal plane with no obstructions.
Therefore, we would propose the installation of a standard combination Drench Shower/Eyewash Unit, which will save limited space and fit easily into any work environment.
UAN Spill Containment
Spill containment pans will be provided at the point of loading operations and is an essential piece of equipment in overall site safety and environmental protection
While UAN is not flammable, industry best practice includes the grounding of all vessels before starting the (un)loading process.
- Vehicle grounding and bonding — ensure true grounding before product flow is permitted
- Explosion-proof enclosures — meet or exceed UL, CSA and Ex requirements
Safety Gates for UAN Loading
Safety Gates will be installed at the top of stairs and any other openings to ensure operator safety at all times.
YellowGate Safety Gates
SafeRack’s line of industrial safety gates is the most flexible product on the market with the ability span openings between 16” and 36” and is field adjustable with nothing more than a wrench. Learn More
- Lighting – Lighting both over and under the platform will be provided. For overcast days or second shift, lighting is essential for improved safety and improved productivity.
- Platform & Canopies – Full platform canopies reduce exposure to the elements and improve the safe and productive loading operation from the operator’s perspective.
- Operator Shelter – Depending on your site requirements, consideration should be given to the requirement of an operator or guard building on the loading platform. This can be customized to meet specific site requirements
- Wheel Chocks – Railcar Wheel Chocks provide fast blocking of all types of railcars and meet OSHA regulations to safely prevent railroad cars from moving during loading or unloading operations. This is a requirement by the Department of Homeland Security
Personal Protective Equipment PPE Requirements
Eye/Face Protection: Wear chemical safety goggles. A face shield (with safety goggles) may also be necessary.
Skin Protection: Wear liquid resistant clothing e.g. gloves, aprons, boots. Safety glasses or goggles are recommended.
* For illustrative purposes only. Our experts will work with you and your team for a custom solution to suit your needs
Urea Ammonium Nitrate (UAN) 101
Things to know about UAN
UAN is a colorless liquid with a slight ammonia odor that is produced by combining urea, nitric acid, and ammonia into a liquid solution. UAN’s nitrogen content typically ranges from 28 to 32 percent. Farmers prefer UAN because it can be applied more uniformly than non-liquid forms of fertilizers. It can also be mixed with herbicides, pesticides, and other nutrients, enabling farmers to reduce costs by spraying once versus multiple applications. It also allows for improved safety versus anhydrous ammonia or dry ammonium nitrate. It’s easy to handle and apply accurately, plus it’s not likely to be stolen for illegal use.
UAN is very corrosive to most metal surfaces. When not properly managed, UAN corrosion can cause serious damage to pumps, pipelines, storage tanks, and access equipment.
UAN is not flammable. Use water to extinguish a fire involving UAN if the water is compatible with the burning material
Customer Reviews4 5Excellent appearance. Easy to use.
SafeRack product benefits are 1. Excellent appearance. 2. Easy to use. 3. Provides excellent protection for users.By Jack Holm from Holcim (US) Inc on 9/12/144 5Everything was great.
Your salesman was great in every way I needed him. [SafeRack products] are built to last. Your company believes in safety.By Robert Chapman from International Paper - Rome on 2/23/195 5We like the quality – as it’s proven here at the plant.
Delivery – one week ahead of schedule! Stephen Todd was responsive and asked all the right questions. We like the quality – as it’s proven here at the plant.By Tim Daly from Chemical Specialties on 3/14/124 5The staff was knowledgable and proficient and the product is very user friendly.
Across the board, the SafeRack G-4 models are the best gangway we have on site! We are pleased with the end product and easy to install. The price was very reasonable and beat out competitive quoting. I’d recommend these because the staff was knowledgable and proficient and the product is very user friendly.By Jason Stevens from Polychemie on 2/13/124 5It’s light, easy to use and safe.
I would recommend it to anyone using a chain for loading railcars, it’s light, easy to use and safe.By Jennifer Salazar from Dow Chemical on 1/30/134 5This is a sturdy product.
It was delivered ahead of schedule. I had an expedited order and it beat the originally scheduled date. Very responsive. Travis McCraine seems to answer all hours of the day. Even with a design revision between the original and purchased gangway, it still bolted up without modifying bolt locations. Flexible design, balanced for easy lifting and lowering, and plenty of room to walk. This is a sturdy product.By Chris Denton from Nestle USA on 9/19/13
Is your plant or facility compliant with ANSI, OSHA, and local safety codes? We can help!
EMERGENCY EYEWASHES / SHOWER EQUIPMENT AND THE ANSI/ISEA Z358.1 – 2014 STANDARD
Following eye contact, you must start washing with water immediately to prevent permanent damage. In the event of skin contact, you must start washing with water immediately to prevent slow-healing chemical burns.
Are you aware that ANSI guidelines state that Eye Wash/Drench Showers need to be located 10 seconds or 55′ from contaminates or hazardous materials and located on the same horizontal plane, with no obstructions? If bottom loading/unloading, an additional shower should be located at grade as well. SafeRack provides the above equipment plus much more needed to keep employees safe and expedite bulk chemical loading and unloading.
OSHA Regulation Experts – Does your existing chemical safety equipment or chemical loading systems meet OSHA’s latest requirements? SafeRack’s professional technical sales consultants are available to meet with your team to make recommendations to keep your facility in front of OSHA’s ever-changing country and region-specific standards and regulations, including lifeline and trolley beam fall arrest systems, metal stairs, and access platforms.
Customer Reviews5 5
Bryce was very helpful, got us what we needed, and helped get us back going with very little downtime.By D. Green from Argos USA LLC on 6/23/204 5The best in the field.
I don’t like buying over the phone but you guys make it pleasant, and your staff is very knowledgeable (the best in the field ).By Juan Garza from Pacific Ethanol Magic Valley LLC on 2/8/135 5Quick service and the parts fit exactly.
Quick response and detailed in his knowledge of the parts. We were able to repair our lifting gang steps and return them back to operations. Great customer service and great product.By Wilson Powell from International Paper Company on 3/2/185 5All is excellent!
Safety safety safety! It is the best on the market at protecting our workers from fallsBy Buddy Sallada from Brenntag NE on 11/7/175 5Well made, light weight and within budget.
I would recommend this product. It is well made, light weight and within budget. It was also delivered very fast.By Larry Parker from Cemex on 8/8/165 5This product is easy to set up, move, and change.
This product is easy to set up, move, and change to a different configuration if needed… stability, interchangeable, light weight.By Chris Jones from MarkWest Liberty Midstream on 4/25/16
The SafeRack approach is a collaborative one. Let’s call it The SafeRack Way. We have, over many years amassed a great deal of experience and understanding of the safety aspects involved in loading road tankers and railcars, as well as the behavioral habits of the operators.
Experts In Chemical Loading
- Acetic Acid
- Acetic Anhydride
- Acrylic Acid
- Aluminum Chloride
- Aluminum Sulfate
- Ammonium Hydroxide
- Ammonium Nitrate
- Benzyl Chloride
- DEF (Diesel Exhaust Fluid)
- Diethylene Glycol
- Dodecylbenzene Sulfonic Acid
- Ethyl Chloride
- Ethylene Dichloride
- Ethylene Glycol
- Ethylene Oxide
- Ferric Chloride
- Ferrous Chloride
- Hydrochloric Acid
- Hydrofluoric Acid
- Hydrofluorosilicic Acid
- Hydrogen Peroxide
- Hydrofluoric Acid
- Hypochlorous Acid
- Isopropyl Acetate
- Liquid Argon
- Liquid Nitrogen
- Liquid Oxygen
- Maleic Anhydride
- Methyl Chloride
- Methyl Ethyl Ketone
- Methyl Methacrylate
- Molten Sulphur
- Nitric Acid
- Phosphoric Acid
- Phosphorus Trichloride
- Renewable Diesel
- Sodium Cyanide
- Sodium Hydroxide
- Sodium Hypochlorite
- Styrene Monomer
- Sulfuric Acid
- Sulfur Dioxide
- Titanium Tetrachloride
- UAN (Urea Ammonium Nitrate)
- Vinyl Acetate
- Vinyl Chloride
- Zinc Chloride
- Specialty Chemical
North America’s largest loading terminal
World-leading designer, manufacturer, and installer of truck and railcar loading platforms
As one of the primary railcar loading points, Hardisty is one of the major crude oil hubs in North America and a major origination point of pipelines that export to the United States. SCS was asked to supply and construct a SafeRack crude oil loadout terminal spanning nearly half a mile. The USD Hardisty terminal can load up to two 120-railcar unit trains per day and consists of a fixed loading rack with 62 railcar loading positions enclosed, separate control, operator and mechanical buildings, as well as a unit train staging area and loop tracks capable of holding multiple unit trains simultaneously. SCS also supplied and installed boom-supported loading arms with supply and vapor management systems.
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Located in South Carolina
Located in South Carolina
Located in South Carolina
Located in South Carolina
Located in South Carolina