Heil Trailer has been our petroleum tanker of choice exclusively since 1994. We utilize over 94 Heil Trailer tankers to service our Midwestern convenience stores. In our opinion, their reliability and competitive pricing make Heil second to none in the petroleum tanker industry. I would recommend Heil Trailer petroleum tankers to anyone seeking to run a quality dependable fleet.Jay Blair, V.P. Transportation Distribution, Casey’s General Stores, Inc.
FAQ

Question: I’m in charge of Emergency Response at our location. We ship millions of pounds of material in tank trailers and other containers. I’m looking for a training program to attend to learn how to deal with these type of containers. Can possibly help me locate some schools? Tuck

Answer: You can contact Shane Jenkins at Emergency Response Services, Inc. (256-997-9087 Business; 423-506-6624 Cell; 256-997-9041 Fax). He will do on-site training.

Question: Is it possible to install marker lights by drilling two-inch holes into the top edge of a Heil trailer? Richard

Answer: Assuming you are speaking of a Heil Trailer petroleum trailer, it is not recommended to cut holes in the flashing rails of any size. However, Heil Trailer has brackets for this purpose. These brackets are designed to be tack-welded to the flashing rails. Please contact Heil Tank Service for these parts.

Question: Is there any way to set up in-transit heat for a heat source other than a tractor, and still be able to run it through the tractor? Thank you for your help. Randy

Answer: Generally, stainless steel general chemical insulated tank trailers (MC307 or DOT407) are equipped with a heat panel. The heat system design uses either a dimple or channel panel. The heat panels are designed for steam (up to 150 psig) and tractor in-transit heat (3.5 to 6 GPM at no more than 10 psig). Steam is usually connected at the rear of the trailer and in-transit is at the front of trailer. Some carriers have designed stationary heating systems for use with a parked trailer. The stationary heater is similar to a home water heater with a pump and closed-loop system. The water heater tank contains the same coolant as the tractor. The coolant is pumped to the heat panel and returns to the water heater. The connections at the front of the trailer would be used with the stationary heater. When using in-transit, the tractor coolant is temperature is approximately 175 to 200 deg F based on the specific tractor. Several precautions should be taken with heating. Always make sure the heat panel is filled with coolant using in-transit heat. Never heat/steam an empty trailer. When you steam a trailer, you will lose your coolant. If using a stationary heater, minimize the hose length from the heater to the trailer, make sure the closed loop system is fully charged with coolant and monitor the circulating coolant temperature.

Question: Many companies these days are more concerned about quantity over quality. How do the manufacturers rank in quality and workmanship among each other? Also, who is the best custom tank manufacturer?

Answer: Heil Trailer International, Co. does not rank tank manufacturers, and we know of no source for such a rating. We respect our competitors for the niche they fill and do not consider their market position when designing our products. However, Heil Trailer is the only ISO 9001 certified tank manufacturer in the United States, and therefore held to strict quality standards, which includes custom-designed and manufactured trailers. Each order our plant accepts for production is individually engineered per detailed sales specifications in conformance with governing regulations and Heil Trailer’s “best-in-class” quality standards. We offer a full line of products in each of the segments (liquid, dry bulk, heavy haul, etc.) we serve, for virtually any axle configuration in order to comply with State and Federal Bridge formula (as well as international standards). Heil Trailer uses the highest quality components and raw materials during their manufacturing processes. A typical Heil Trailer owner believes safety, ergonomics, equipment longevity, low maintenance costs, superior technical support and service, high resale value, and aesthetics are the most important features when picking an equipment supplier. Heil Trailer strives to meet this “best-in-class” quality standard in an effort to exceed our customers expectations. If you’d like to learn more about Heil Trailer International, Co., please contact your nearest authorized Heil Trailer International, Co. distributor found on our website.

Question: We have a number of your 1650 cu/ft flour trailers. Do you have a recommended wash procedure that you can provide? We are having problems with product getting in the aerators and turning to dough. Thanks – Rick

Answer: Unfortunately we do not have a recommended procedure for cleaning the inside of the trailer. However, I do believe in this situation the aerator itself has come loose and the internal wear pad has rotated inside. We recommend hand-tightening the aerators once a week to help prevent the wear pad from turning. At this point you will need to drop the line, discharge valve and loosen the aerator. Then you need to reach up inside the tank and turn the wear pad to its original location. Finally hand-tighten the aerator, re-install valve and piping. Thanks for the question.

Question: How do you clean the inside of an aluminum cement tanker with a lot of build-up on the sides? Dave

Answer: Dave, there is no quick way to do this. If a trailer is allowed to build up hardened cement on the inside, you are limited to chipping and scraping the material out. We would advise removing the piping to avoid contamination of future loads.

Question: What are the regulatory requirements for fall protection while offloading a fuel tanker trailer in a remote site in Canada?

Answer: This is a very good question. We had to turn to our Heil Trailer International, Co. Canadian distributor (Intrans-Corp, Ph: 218-829-6136, Cell: 320-412-6521, intrans@hughes.net) to get an answer. To the best of our knowledge, there is no specific fall protection requirements. There are however, some general safety requirements such as “no platform can be any higher than the overturn protection”, but these are basic government safety regulations that trailer manufacturers have been required to follow for a very long time and just about any trailer will have this incorporated or just will not have any type of catwalk/walkway. What we have found is that most companies, both trucking and shipping, have their own requirements as to what their fall protection policy is going to be in accordance to their safety department and insurance company requirements. This means if you are moving product for Ecana or Shell your trailer has to meet their safety regulations, which would include fall protection. Our suggestion is that you discuss with your company and the company you are hauling product for and ask them what are their current safety / fall protection requirements.

Question: I am working on a project with an engineering company that is building a gasoline truck loading terminal in Trinidad. The engineer says the trucks are 9,000-gallon capacity and are British Heil Trailer trucks. Do you know what type of coupler I need to connect my company’s loading arms to this type of truck? Chris

Answer: The British use the same API (American Petroleum Institute) bottom loading valve size as we do under DOT 406. This is in accordance with API RP1004 for total interchangeability with all loading valves used for petroleum liquids.

Question: I am transferring plastic pellets from a rail car to a Heil Trailer dry bulker. When I transfer from the rail car, do I need to leave the bulker trailer brakes off? Do the brakes have any effect on the blowing of the load?

Answer: By design, when the tractor brakes are set, the trailer brakes will set automatically. This is done to ensure a safe work area is maintained; hence, it is important to leave the trailer brakes set during the loading and unloading process. This prevents the trailer from shifting fore or aft as product is being loaded or unloaded from the trailer. The actuation of the trailer brakes has no relationship to the operation of the trailer.

Question: Is there a MC/DOT specification cargo tank listed in 49 CFR 173.242 which is practical for hauling bulk hazardous (dry granular) products that are unloaded by pressure (up to 15 psi)? Mike

Answer: Sorry, Mike, we are unaware of any such permit. You should contact the DOT and see if they can be of more assistance.

Question: Hi, I haul gas for a major trucking company in Michigan. We have several 6-axle trailers with compartment sizes 4000/2000/1400/2000/4000 and 4700/1150/1750/2900/2900. It seems when I ask what the lift axle pressure should be set at; everyone gives me an unsure answer, like they’re guessing. Can you provide the correct psi for the front / rear lifts. Also, when we do split loads does the front lift axle have to be used if say, comp 1 2 3 are only used? Thank you. Ryan

Answer: To ensure proper weight distribution and axle load limits, lift axle ride bag pressures should be set by placing the loaded trailer on a scale and dialing in the ride bag pressure to the legal axle weight limit. The loaded trailer will need to be scaled axle by axle to arrive at an accurate per axle trailer weight. Using a calibrated scale the user can correlate the ride back pressure to the gauge pressure. It is incumbent upon the user to ensure he/she is in compliance with all state and federal regulations.

Question: I am new to the tanker field and would like to know the pros and cons of using 406 versus and 407 tankers. We are setting up to haul non blended Bio-Diesel (B99). Will both work and if so which is preferred and why?

Answer: Thanks for your question. You will want a 407 tanker with insulation and possibly in transit heating capability depending on the length of your haul and outside air temperature. This is to prevent the Bio-Diesel from solidifying

Question: I have a bulk liquid trailer that is stamped Capacity 5400 FPU. Can you tell me what the gallon capacity for this would be? Thanks Henry

Answer: Sure, this was a milk tank (usually stainless steel). The 5400 was for 5,400 gallons (probably a two compartment trailer), and the FPU stands for “farm pick up”. These tanks were / are used to collect the milk at the farms and take it to the dairy for processing. They also usually have a two or a three section stainless steel cabinet at the rear of the trailer that houses the valves and piping, the stainless steel sanitary pump and motor, and a “sample chest”.

Question: Would it be feasible and/or economical to convert a DOT 407 trailer to DOT 412 for hauling hydrochloric acid? Dirk

Answer: Thanks for the question Dirk! No, you cannot turn a 407 into a 412 certification. A 412 trailer has to be built to that certification; it must be built to ASME code and carry a U-Stamp on the plate. Unlike the 407, all material that goes into the 412 vessel must have papers certifying it meets the proper specifications. The trailer must also be rubber lined to handle hydrochloric acid. Even though some of these trailers are aluminum, the majority of them are made of steel.

Question: Does DOT allow the use of MC306/DOT406 tank trailers for transporting crude oil, and where can I find the proper requirements for crude hauling? Thanks! Ken

Answer: Yes, you can haul crude oil in 306-406 tanks as long as the vapor pressure does not exceed the design pressure of the trailer. Most crude trailers being built today in the U.S. and Canada are 407 Spec. Basically the same as other petroleum tankers, the requirements for a tanker hauling crude is based on flash point and vapor pressure. Some crude can be hauled in non DOT tanks but is usually not done due to the versatility needed to haul all crude product, ranging from heavy crude all the way to condensate. This is the reason why DOT 407 is usually used for crude.

Question: I heard that mild steel tanks are not allowed to carry gasoline for safety reasons. Instead, in order to carry gasoline, only aluminum tanks should be used. Is that true? Is there any standard that I can refer to? Marziyana

Answer: Gasoline is delivered globally in steel trailers. India, Latin America, Brazil and others are exclusive. It is compatible. Local laws might suggest different for you. The U.S. and the rest of North America (and Europe) shifted primarily for reasons of weight (among others).

Question: Our company has a Heil Trailer crude oil tanker hauling only “sweet” product, but we are entering a new service area. Should we be concerned about corrosion caused by hauling crude oil with a small amount of H2S (under 150 ppm) in an unlined tank? Eric

Answer: We strongly recommend lining any tank hauling crude, even sweet. If they acidize frac the well, you will get some acid when you pull loads of crude afterward. It will lie on the bottom of the tank and can start pitting rapidly. We have seen this happen on several occasions. H2S mixed with water can start a problem quickly.

Question: Hello, I am working in a company that require trailers for liquid sulfur (T=140°C) of 30 tons capacity. Can Heil Trailer supply this requirement? Best Regard – Ana

Answer: We build some sulfur trailers out of aluminum. We would need specs and other information. Please feel free to contact our Heil Trailer, Texas, facility for more information (817.430.1472 ).

Heil Trailer has been our petroleum tanker of choice exclusively since 1994. We utilize over 94 Heil Trailer tankers to service our Midwestern convenience stores. In our opinion, their reliability and competitive pricing make Heil second to none in the petroleum tanker industry. I would recommend Heil Trailer petroleum tankers to anyone seeking to run a quality dependable fleet.Jay Blair, V.P. Transportation Distribution, Casey’s General Stores, Inc.