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COMPANY | PRODUCTS/CERTIFICATES | SERVICES | CAREERS | DE

Fixed roof tanks

Floating roof tanks

Special tanks

Refurbishment and tank lifting

Certificates

No two tanks are alike

Our long-term experience in large-volume tank construction enables us to find solutions even for complex situations. The welding technology we use is game-changing for the construction of large storage tanks. Extensive process testing of a wide range of materials, sheet thicknesses and welding positions are standard, and our own developments and patents speak for themselves.

Fixed roof tanks

JPM plans and builds fixed roof tanks with and without steel collection pans for uses of all kinds and for stored products. A wide variety of requirements and design parameters are taken into account, including for example:

Design code: EN, EUROCODE, DIN, API, ASTM, ASME, BS, CODRES, etc.

Applications: Mineral oil, chemicals, foodstuffs, H2O, liquefied gases, heat storage

Material: Carbon steel, stainless steels, etc.

Temperature range: From -200°C to +300°C

Pressure design: From atmospheric pressure to approx. 500 mbar

Sizes: From approx. 1000 m³ capacity

Tank bottom: Flat bottom overlapped or butt-welded, fully supported or on support grid, with or without slope or also designed as conical bottom

Fixed roof types: Self-supporting domed roof or self-supporting conical roof

Internal floating roofs: Full contact – pontoon type internal floating roofs equipped with the JPM SWING II floating roof seal

The operating and safety equipment required for trouble-free operation of the various applications is selected and dimensioned by our engineers in accordance with the applicable standards:

Sprinkler system as a cooling system for protection against fires in adjacent structures

Foaming system as a fire extinguishing system

Various internal and external heating systems for temperature control of stored products

Overpressure and underpressure valves

Overfill protection

External access equipment consisting of stairs, ladders and platforms

Internal access equipment such as manholes and bottom-level cleaning openings

Equipment for leakage monitoring of tank bottom and tank shell

Tank anchoring in coordination with the available foundations

We supply and install additional equipment required for safe operation, such as inlet structures, immersion pipes, floating suction systems, skimmers, diffusers, agitators, etc.

Interior view of a storage tank with a diameter of 60 m

Storage tanks made of stainless steel, various designs and sizes up to 16,000 m³, partly as special design

Construction of a 10,000 m³ fixed roof tank for 68% isotropic nitric acid made of stainless steel with a special chemical composition

Construction of a new 60,000 m³ fixed roof tank with external rafters for the storage of special products

Floating roof tanks

We also plan and build floating roof tanks. These are manufactured for many applications and storage products – with and without a steel collection basin. A wide variety of requirements and design parameters are taken into account:

Design code: EN, EUROCODE, DIN, API, ASTM, ASME, BS, CODRES, etc.

Applications: Mineral oil, chemicals

Material: Carbon steel, stainless steels, etc.

Temperature range: From -20°C to +80°C

Pressure design: Atmospheric pressure

Sizes: From approx. 5000 m³ capacity

Tank bottom: Flat bottom overlapped or butt-welded, fully supported or on support grid, with or without slope

Floating roof types: Pontoon type floating roof, also with centre pontoon and double-deck floating roof, each equipped with the JPM SWING I floating roof seal

The operating and safety equipment required for trouble-free operation of the various applications is selected and dimensioned by our engineers in accordance with the applicable standards:

Sprinkler system as a cooling system for protection against fires in adjacent structures

Foaming system as a fire extinguishing system

Various internal and external heating systems for temperature control of stored products

Overpressure and underpressure valves

Overfill protection

External access equipment consisting of stairs, ladders and platforms

Internal access equipment such as manholes and bottom-level cleaning openings

Equipment for leakage monitoring of tank bottom and tank shell

Tank anchoring in coordination with the available foundations

We can also provide additional equipment required for safe operation, such as inlet structures, immersion pipes, floating suction systems, skimmers, diffusers and agitators.

Construction of a fixed roof tank with steel collection pan and start of construction of the internal floating roof with a diameter of 42 m

Installation of the membrane

Floating roof drainage for draining rainwater from the top of the floating roof

Installation of the outer pontoon cells

Special tanks

Gas tanks. JJPM also builds gas storage tanks for a wide range of requirements. For example, the low-pressure gas storage tank is often used for intermediate storage of exhaust gases from a tank farm upstream of a vapour recovery unit or upstream of a flare. The working pressure of the low-pressure gas storage tanks is approximately 1 to 5 mbar.

JPM has developed and patented a rope guide for low-pressure gas storage tanks. The membrane and the shell are made of highly tear-resistant material that is resistant to hydrocarbon compounds. All ropes, rollers and bearings making up the rope guide are under the membrane. This guarantees the best possible guidance.

The JPM low-pressure gas storage tank meets the requirements of TA-Luft and the VdTÜV Technical Leaflet No. 954.

The membrane, shell and rope guide are used in storage tanks in accordance with DIN 4119/ EUROCODE. Retrofitting in existing storage tanks has been successfully implemented several times.

For higher operating pressures, the membrane can be made of steel and weighted with adjustment weights, for example, made of concrete.

For special applications, such as storage of acetylene or blast furnace gas, JPM plans and builds bell type gas storage tanks.

Silos. JPM’s portfolio also includes the planning and construction of silos for the storage of bulk goods. They are made of carbon steel or stainless steel for a wide variety of applications and in a diverse range of designs. Silos are used, for example, for the storage of pure sugar/foodstuffs or for the storage of pellets (sulphur or steel).

The silos can be constructed with extensive equipment for storage and retrieval/conveyor screws, air conditioning, lifting, insulation, etc. Our engineers develop the necessary equipment to meet the customer’s needs. For example, the food industry naturally has special requirements with regard to cleanliness. A flawless storage product is made possible, for example, by coating the inside of the silo or lining it with stainless steel sheets.

Bell type gas tank with a capacity of 16,500 m³ for the storage of acetylene, operating pressure 60 mbar, total height 53 m

Guide roller for the bell in the dip tank

Membrane gas tank with external counterweight

Bell type gas tank with a capacity of 16,500 m³ during installation

Refurbishment and tank lifting

From the very beginning, JPM has not only built tanks, but also repaired and refurbished them. All necessary work requires careful planning, which is tailored to the frequently changing tasks at hand. Execution is documented with static calculations, drawings, welding and test plans. This also includes a risk assessment by JPM.

Here is a selection of the most common work we carry out, although we are of course proficient in all work relating to tanks and containers.

1. Tank foundation
Tank lifting and renewal of the foundation under the tank
Relocation of the tank with a crane to renew the foundation
Installation of an additional concrete layer/insulation layer into the tank

2. Tank bottom
Repairs such as the replacement or doubling of bottom plates or the re-welding of weld seams Subsequent installation of tank bottom sumps or a new bottom
Subsequent installation of a vacuum-monitored double bottom system in accordance with DIBT approval Replacement of bottom edge plates and plates of the lower first shell section

3. Tank shell
Replacement of corroded shell plates
Raising of the tank shell to increase volume
Installation of additional stiffening rings on the tank shell

4. Fixed roof
Repair or replacement of the sheet metal skin
Repair or replacement of the roof rafters
Additional stiffening of the existing fixed roof
Replacement of the entire fixed roof

5. Floating roof and internal floating roof
Repair or replacement of the membrane or pontoon
Leak test of the pontoon
Conversion of pontoon floating roof into double-deck floating roof
Repair or replacement of existing floating roof seals
Delivery and installation of new JPM SWING floating roof seal
Retrofitting of JPM DOUBLE SWING secondary seal
Retrofitting of JPM TERTIARY SWING tertiary seal

6. Equipment
Nozzles and manholes
Access systems
Floating suction, skimmers
Tank heaters
Safety fittings
Fire extinguishing equipment
Floating roof drainage systems

7. Upgrading of existing tanks
Conversion of floating roof tanks into fixed roof tanks
Retrofitting to internal floating roofs
Retrofitting of approved vacuum-monitored double bottom systems in accordance with DIBT approval
Retrofitting of vacuum-monitored double shell systems

Volume increase
Change in design parameters
Adaptation to new storage products
Adaptation to applicable standards
Static recalculation of tanks for new operating parameters or taking corrosion erosion into account