Capacity and Dimensions
Standard Capacity Range
Fleximake manufactures a wide range of standard onion tanks for various applications and is suitable for various liquids. This includes potable water, non-potable water, chemicals, fertilizers, fuels and oils. Details of our standard sizes of onion tanks for sale are listed in the table below.
| Model No||Capacity(Litres)||Base Diameter D1 (mm) ||Top Diameter D2 (mm) ||Height H (mm) |
|FMOT002 _ _ _ _||2,000L ||1,900mm||700mm ||1,000mm |
|FMOT003 _ _ _ _||3,000L ||2,300mm||1,000mm ||1,000mm |
|FMOT005 _ _ _ _||5,000L ||2,800mm||1,500mm ||1,000mm |
|FMOT007 _ _ _ _||7,000L ||3,200mm||1,700mm ||1,100mm |
|FMOT010 _ _ _ _||10,000L ||3,700mm||1,900mm ||1,250mm |
|FMOT015 _ _ _ _||15,000L ||4,400mm||2,600mm ||1,250mm |
|FMOT020 _ _ _ _||20,000L ||5,000mm||3,300mm ||1,250mm |
|FMOT025 _ _ _ _||25,000L ||5,500mm||3,700mm ||1,250mm |
|FMOT030 _ _ _ _||30,000L ||6,000mm||4,200mm ||1,250mm |
|FMOT035 _ _ _ _||35,000L ||6,400mm||4,600mm ||1,250mm |
|FMOT050 _ _ _ _||50,000L ||7,500mm||5,600mm ||1,250mm |
|FMOT070 _ _ _ _||70,000L ||8,800mm||6,800mm ||1,250mm |
|FMOT090 _ _ _ _||90,000L ||9,900mm||7,800mm ||1,250mm |
|FMOT100 _ _ _ _||100,000L ||10,500mm||8,200mm ||1,250mm |
|FMOT130 _ _ _ _||130,000L ||12,000mm||9,500mm ||1,250mm |
Note: _ _ _ _of the model number in the above table represents the code for the fabric material. These codes are shown in the table in “Fabric Material Choices for Onion Tanks” tab that details the fabric material selection. Example: Material code for RPVC 900gsm is P09N. Therefore, the model number for 30,000L onion tank made out of food grade RPVC 900gsm is FMOT030P09P
Please click here to download general arrangement drawing of our standard onion tank.
Custom Made Onion Tanks
Fleximake can provide you a tailor made solution to perfectly fit your requirements. We can design and manufacture onion tanks to meet the required liquid holding capacity, type of fluid you need to store, fittings and accessories.
The friendly team at Fleximake are always happy to help with your specific requirement for liquid storage solution. Simply fill the Enquire form below or give us a call on 1300 195 295. We’ll discuss your needs and deliver the perfect solutions to you on time.
We can offer our onion tanks with almost any inlet & outlet pipe fitting type or size you require. Following are some of the common fitting types used for onion tanks.
Poly tank fittings with ball valves Aluminium flanges Stainless steel flanges Camlock fittings BSP UPVC valve with PP male coupling Quick couple hose and adapter fittings Storz firefighting fittings
If the fitting you need is not listed above, please contact us. We are happy to meet your requirement.
Accessories and Options
Top Cover A valise with carrying handles for transportation of the tank when folded. We can print your logo on the onion tank Supply of complete solution, including pumps and fittings UV (Ultra Violet) treated fabric materials Fire retardant (FR) treated fabric materials If required, secondary portable spill containment bunds can be supplied with onion tanks for chemical, oil or fuel storage applications
Fabric Material Choices
Fabric Material Choices
We manufacture our onion tanks from strong, durable, heavy duty fabric materials suitable for harsh environments in commercial, mining and industrial applications. We have onion tanks manufactured from a range of different materials that are best suited to your application.
The selection of fabric materials that are used for manufacturing our onion tanks are listed in the table below. We select the most economical material suitable for your needs considering liquid characteristics. Please download the datasheets for properties and fluid resistance guidelines of our industrial fabric materials.
| Fabric Material ||g/m2 (gsm)||Suitable applications ||Data sheet and Fluid resistance guideline ||Fabric Material Code |
|RPVC||900 ||Non-potable water, Certain chemicals, Certain oils ||Download datasheet ||P09N |
|RPVC||900 ||Food Grade, Potable water(i.e. drinking water) Comply with AS/NZ 4020 standard ||Download datasheet ||P09P |
|RPVC||1100 ||Non-potable water, Certain chemicals, Certain oils ||Download datasheet ||P11N |
|RPVC||1100 ||Food Grade, Potable water(i.e. drinking water) Comply with AS/NZ 4020 standard or equivalent international standards ||Download datasheet ||P11P |
|RPVC||1400 ||Non-potable water, Certain chemicals, Certain oils ||Download datasheet ||P14N |
|TPU||960 ||Potable water (i.e. drinking water) Comply with AS/NZ 4020 standard or equivalent international standards ||Download datasheet ||TPUP |
|TPU||1230 ||Fuels, Oils, Certain Chemicals ||Download datasheet ||TPUN |
|ER1000||1000 ||Most chemicals, Certain oils ||Download datasheet ||ER10 |
If applicable fluid does not list in the above fluid resistance guideline datasheets or if the data is not clear to you, please contact us in order to select a suitable material for your onion tank.
Why Choose Fleximake
Robust, durable and stable
Fleximake onion tanks are designed and manufactured to be robust, durable and stable. All the seams of Fleximake onion tanks are fusion welded using cutting edge plastic welding machines for guaranteed 100% sealing and for strength. The fabric materials used for our onion tanks are heavy duty, abrasion resistant, puncture resistant and high in tensile strength.
Fleximake provides a protective ground sheet with our onion tanks to provide additional protection when deployed on rough surfaces. We design our onion tanks with a special shape and a low profile to ensure that the tank is stable and sturdy when filled. Fittings are firmly attached to the tank with a reinforced double-layer of welded fabric material to ensure that the port does not break out of the tank wall with use.
Ease of Use
We have designed our onion tanks to fulfil the needs of field personnel, giving careful consideration to how the tank will be transported and used in remote areas. We also considered the time pressures on field personnel setting up onion tank water storage in an emergency. Our onion tanks can be deployed in a very short time, usually only 10 to 15 minutes by one or two people.
The self-raising collar design allows the tank to be filled with minimal worker involvement. This collar enables the onion tank to expand as it is filled and contain the water body without the need for an external frame. The floating collar of our onion tank lowers gradually when emptying while maintaining its stability.
Onion tanks are completely collapsible. Our onion tanks are lightweight, therefore, they can be folded neatly and easily for relocation and/or storage. The onion tanks are open-topped and able to be turned inside out which allows easy access for cleaning.
Fleximake service and after sales support
Our manufacturing facility is located in Melbourne, Australia, operating for over 10 years. We are committed to provide repair services and after sales support to all our customers.
We can repair your existing onion tank to help you save money even if they were supplied by other manufacturers’. Please contact us with the details of the damaged onion tank. In addition we can supply you with a repair kit so that you can repair the onion tanks on site yourself!