Storage Tanks
The storage tanks body has been prefabricated through the benefit of a three-roller rolling machine with the ability of rolling sheets up to 3.5 meters in width and 40 millimeters in thickness, and a four-roller rolling machine with ability of rolling sheets up to 2.5 meters in width and 25 millimeters in thickness.
EMMC is a leading manufacturer of field weld storage tanks of carbon steel and stainless steel, utilized in the Oil & Gas industry. Our facility includes state-of-the-art equipment for burning, bending, and rolling of both carbon steel and stainless steel materials. In-house quality assurance and quality control programs satisfy the requirements of international recognized codes and standards, and we back our fabrication capabilities with the recognized experts in knock down field-weld tank fabrication.
In this field EMMC offers products like:
cone roof tanks, umbrellas roof tanks, dome roof tanks, open top tanks, internal and external floating roofs, double wall tanks, sloped/shovel bottom tanks, ASME coded pressure vessels, tank and bottom shell plates, and all types of specialty steel fabrication used in the petroleum market.
The EMMC Advantages in Oil & Gas Storage Tanks:
- The highest quality field-weld tank fabrication available.
- Vertically integrated and purchase steel directly from the mill, saving costs for our customers.
- In-house, environmentally controlled blast and coating.
- Employ the leading team of experts in storage applications.
- Field installation services available.
- Customer service on every project.
- Competitive price leader in field-weld tank fabrication and field construction.
- Total storage system performance guarantee by one company.
Pressure Vessels
Since 1997, the production of custom fabricated pressure vessels of carbon steel and stainless steel has been one of the cornerstones of our business. Chemical and Petrochemical manufacturers rely on us to produce made-to-order pressure vessels to process their products. We have extensive experience with a wide range of material including Carbon Steel and Stainless Steel.
Due to their potentially hazardous nature, pressure vessels require industry-specific knowledge and expertise to manufacture. EMMC has an extensive record of constructing safe and long-lasting pressure vessels. We excel in custom tailoring pressure tanks and pressure vessels to meet not only specific needs, but also the guidelines and regulations as determined by the ASME code sec VIII DIV.1.
The pressing tools and edge cutter equipment grant us the ability of manufacture heads with the thickness of 20 millimeters and a diameter of 5 meters. Depending on the project and customers’ request, we can supply heads with higher diameters from foreign companies, such as Afle bach and Arabian oasis.
We provide high quality solid welding utilizing powder welding with a length of 6 meters and welding arm with a length of 5 meters.
EMMC has fabricated over 180 pressure vessels so far. Fabrication pressure vessels of Lorestan Petrochemical and Mahabad Petrochemical with the diameter of 3.5 meters, the length of 25 meters, and the weight of 110 tons are some of the biggest projects ever done in this line.
Heavy Steel Structures
The annual production capacity of Heavy Steel Structures of Esfahan Machinery Manufacturing Company (EMMC) is 15,000 tons. Cutting, beam making, assembly, welding and cleaning operations, and finally sandblasting and paint are the main activities of Steel Structures production activities, all of which are built-in 13 roofed halls with an area of 20,000 square meters. If needed there are 18,000 square meters of workshop space which is equipped with overhead cranes. In order to speed up the painting operation, a painting hall with an area of 1600 square meters equipped with twenty blowers and air suckers has been set up. Sheet-making machines, CNC cutting machines, scissors, three-axis drills, semi-automatic submerged arc welding, CO2, and plate processing are used in the process of making steel structures. Before starting the manufacturing process, the drawings are converted to a three-dimensional model in various software, including Tekla, and then the workshop and construction drawings are extracted from this model. All construction stages are based on the plans of the production planning unit and in accordance with the approved manufacturing instructions and relevant standards, and the QC unit supervises its proper execution.
Heat exchangers
Heat transfer is an interaction that occurs between materials by reason of the temperature difference between them. It is the most common type of inter-action in heat exchange equipment.
Heat transfer between the streams is usually effected indirectly. The streams are separated by a solid material, such as a metal tube wall or plate, or even a plastic membrane, and the heat passes from the first fluid through the solid material to the second fluid. The consequences of the heat transfer are often local increases in the temperature of the cooler fluid and decreases in that of the warmer fluid; they may also entail the change of phase of one or both fluids.
There are two common type of heat exchangers in oil and gas industries:
- Shell and tube heat exchangers
- Air cooled heat exchangers
The shell and tube exchanger is by far the most common type of heat-transfer equipment used in the oil and gas industries. The advantages of this type are:
- The configuration gives a large surface area in a small volume.
- Good mechanical layout: a good shape for pressure operation.
- Uses well-established fabrication techniques.
- Can be constructed from a wide range of materials.
- Easily cleaned.
- Well-established design procedures.
Essentially, a shell and tube exchanger consists of a bundle of tubes enclosed in a cylindrical shell. The ends of the tubes are fitted into tube sheets, which separate the shell-side and tube-side fluids. Baffles are provided in the shell to direct the fluid flow and support the tubes. The assembly of baffles and tubes is held together by support rods and spacers.
Air-cooled exchangers consist of banks of finned tubes over which air is blown or drawn by fans mounted below or above the tubes (forced or induced draft). Air-cooled exchangers should be considered when cooling water is in short supply or expensive. They can be competitive with water-cooled units even when water is plentiful.