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F.A.Q. in Collapdible Fuel Baldders

• What is collapsible pillow tanks?

• What are the advantages of collapsible pillow tanks in comparison with metal ones?

• What is the construction of collapsible tanks?

• What is the mechanical strength of collapsible tanks?

• Which characteristics should be maintained for filled tank?

• What is the process of filling collapsible fule bladder tanks PER-N with petroleum items?

• Petroleum product drain from fuel bladder tank PER-N

• Storage and transportation of empty collapsible tanks

• Firefighting rules

• Safety rules during the work with collapsible pillow tanks PER-N

• Collapsible fuel bladder tanks and containers reparation

What is collapsible pillow tanks?

• The newest type of packaging collapsible pillow tanks and containers for storage of liquid products such as oil, petroleum items, petrochemistry items, fuel products, engine oil, feed and pure water and other liquids. Covering material of collapsible pillow tanks for the storage of fuel and water provides with strength, containment and workability of products in the range of temperatures -55ºС– +50ºС.

• Collapsible pillow tanks for petroleum items and water consist of polymer hermetic layer of cushion form, handles for loading and fastening, filling and empting tube with flanged socket, breathing nipple, and delivery suction hose with quick gathering ring joint or with ball valve.

• The covering of collapsible fuel bladders is produced from several separated fabrics, which joint each other overlapped, forming blades. The joint places are welded from both sides with the help of special elastic ribbon.

• According to its nature all collapsible pillow tanks and fuel bladders for the storage of petroleum items and water are practically equal and differ from each other only with size and elastic material label, which is used for different cargo.

• Collapsible pillow tanks for oil storage and petroleum items of PER-N series are manufactured with nominal capacity from 1 to 120 cubic meters. (see the table of general characteristics). According to the requirements of a customer the manufacturing of fuel tanks PER-N can be possible up to the capacity of 500 cubic meters.

What are the advantages of collapsible pillow tanks in comparison with metal ones?

• Light weight;

• Availability of rolling them up in the packets of small size;

• Good transport ability (on the automobile with cargo capacity of 4 t flexible tanks 1000 м3 can be transported);

• Small time expenditure and labor contribution for unwinding and relocation of storages using polymer flexible tanks;

• Chemical resistance;

• Biological inactivity;

• Mechanical strength of flexible tanks performs safe storage and transportation of water in them. However, distinct from metal tanks, flexible tanks require more delicate handling and strict abidance of set up rules of exploitation.

What is the construction of collapsible pillow tanks?

• Collapsible pillow tanks for petroleum items and water consist of polymer hermetic layer of cushion form, handles for loading and fastening, filling and empting tube with flanged socket, breathing nipple, and delivery suction hose with quick gathering ring joint or with ball valve.

• Transportation modifications of fuel bladders of PER-T series are completed with retched straps for fixation on the platform (in carriage body, on board) of transportation vehicle.

• Emptying filling tube is destined for the filling and emptying of flexible tank. It has joining nipple, for the connection with delivery suction hose with the help of power loop.

• Delivery suction hoseis provided with ring joint to connect with delivery equipment and is provided with lid for cover of hand hose after filling or emptying of petroleum item.

• Air tube is installed on the upper section ofcollapsible pillow tanks layer with the help of flange mounting, contracting with bolts. It destined for air removal from the tank during its filling and preventing petroleum item evaporation. Before rolling up the tank, escape pipe is dismounted, and air tube is closed by stopper or rubber nipple.

• Cleanup tube is installed on the lower section nearby the angle of collapsible pillow tank with the help of flange mounting, contracting with bolts and is destined for the cleaning of flexible tanks during their emptying.

Collapsible pillow tanks mechanical strength

• Collapsible pillow tanks mechanical strength for the storage of oil products under strict abidance of set up rules of exploitation condition performs long durability and safe storage (transportation) petroleum items in them..

• In the process of exploitation, storage and transportation of flexible tanks and containers for fuel it is necessary to keep them from contacting with sharp items. In the temperatures which are subtolerant it is necessary to proceed with caution and don’t make flexible tanks to rolling up.

Which characteristics should be maintained for filled tank?

• The platform for the filled tank for petroleum items products should have negative grade no more than 0.001 in fore-and-aft direction and in width direction to make the work easier during tank emptying and cleaning operations. On purpose to prevent the roll over the tanks with petroleum item with negative grade 0,001 - 0, 0 it is necessary to add the ground around the tanks or to fasten the handles with strops from the opposite side. The negative grade of a platform is identified with the help of level.

What is the process of filling flexible PER-N tank with petroleum items?

• Collapsible pillow tanks and fuel bladders for the storage of petroleum items are filled through the filter with the help of pumping equipment or by using gravity flow from automobiles or railway cisterns, and also from special tanks, if the level of petroleum item in them is higher than max level of filling flexible tanks.

• To fill the tanks for the storage of petroleum, items above its nominal capacity is forbidden.

• The amount of filled product is controlled by counter according to the quantity of emptied auto cisterns or by measuring rod. .

Petroleum product drain from flexible tank PER-N

• The tanks can be emptied from petroleum items with help of pumping arrangement or using gravity flow.

• Totally collapsible fuel bladder tank is emptied from the petroleum item in the following way. Under petroleum item level decrease condition in flexible tank to 100-150 mm, the performance of pumping arrangement is decreased up to 10 –15 m3/h, simultaneously flexible tank is rolled up, beginning with the contrary end to the place of petroleum item selection. For this the end of flexible tank is turned up and free from petroleum item part is rolled up, making the condition for petroleum item overflowing to the neck of tanks.

• Quantity of delivered petroleum item from polymer flexible tank is identified with the help of counter or with the help of petroleum item measurement in run-down tank.

Storage and transportation of empty collapsible pillow tanks

• Transportation vehicles of empty collapsible pillow tanks should not contain sharp items (nails, clamps, bolts) which can damage the surface of flexible tanks.

• During the storage and transportation of empty fuel bladders it is forbidden to put any hard cargo on them.

• During the storage of empty flexible tanks for petroleum items it is forbidden the impact of incoming solar beam. To place collapsible pillow tanks closer for 1 meter from heating devices is forbidden.

• The best condition which will provide minimum aging of tanks for petroleum items is the storage in restricted area at the temperatures range– 15 to + 25ºСand humidity not higher than 70%.

• Collapsible pillow tanks are stored on the shells in rolled up state.

• Collapsible pillow tanks, in rolled up state are placed into covers, made of polyethylene insert and fabric sack. According to the customer demands flexible tanks for petroleum items are additionally packaged in wooden boxes (barrels).

• Joining nipples and air tubes are stored separately from tanks.

Firefighting rules

• During the storage, transportation, exploitation and reparation of collapsible pillow tanks, firefighting rules acting on the territory of Russian Federation correspondingly with international standards should be obeyed.

• To put out the fire broken tank it is necessary to use fire extinguisher, high expansion air filled foam. After putting up the fire, flexible tank should be cleaned from squenching agent by gasoline.

• Automobiles which are destined for the transportation of flexible tanks filled with petroleum item, must have baffle directed to the engine side, bottom of the auto train shouldn’t have any damage. Automobiles (auto trains) should be completed with fire extinguishers, which are placed in the outer side in front part of auto train.

Safety rules during the work with collapsible fuel bladder PER-N

• In the process of exploitation, storage and transportation of collapsible fuel bladders it is forbidden:

• To walk on collapsible fuel bladders in the shoes with outstanding nails and plates;

• To move the rolled up fuel bladders and place it on the platform, which contains sharp items (bristles, stones, small woods), which can damage the layer of flexible tank is forbidden; through an exception moving of rolled up flexible tank is allowed for the distance of 10 meters, under absence of sharp items conditions;

• To drop the collapsible fuel bladders on the ground from auto transport, shells and so on;

• To store and transport collapsible fuel bladders together with organic mortars, acids, alkaline and other stuff which can damage the layer and armature of a tank;

• Brush away the snow or mud from collapsible fuel bladders by metal shovels, scrapers, wooden shovel with oblique angles.

• To perform the load (unload) of a tank with the help of wire with the capacity less than capacity of a tank, with slinging less than for four angles of filled tank and empty less than for four cargo loops of a sack;

• To connect delivery suction hoses immediately to emptying filling nipple of fuel tank;

• To perform the works inside of collapsible fuel bladders without attendant, who is standing outside;

• To use volatile lights, matches and other means of lightning, this can produce a spark;

Collapsible fuel bladder tanks reparation:

• The collapsible pillow tanks for storage of petroleum items with technical defects should be maintained in time

• In the process of storage and exploitation the following technical defects in the work of flexible tanks may occur:

- Transparent layer damage;
- Joints separations;
- Leakage in the corner of a tank;
- Abruption of outer layer;
- Abruption of reinforce strips;
- Leakage in the places of armature connection to tank layer.

• Collapsible fuel bladders can be repaired as well in filled as in empty state.

• Collapsible fuel bladders, repaired in filled state can be temporarily used before its emptying. After emptying, flexible tanks should be repaired in empty state..

• Empty collapsible fuel bladders can be repaired with the help of glue or with the help of thermal welding, by installation of patches produced from material which is supplied as a part of package ofcollapsible fuel bladders delivery.


To obtain more detailed information please contact our specialists in central office or region representations, where you can always get the help, calling the number. +7 (495) 783-01-67, or to address the request letter per e-mail: info@rusinflex.com



Field Fuel Depot

Fuel storage facilities

Bag pipes

Oil spill response

Water tanks

Complex fire

Water-filled dam

Pontoons

Flexible gasholders

Testing of lifting equipment

Impervious berm

Soft portable fuel tanks and knapsack jerry cans
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