.Collapsible tanks for transformer oil, in place of huge steeliness tank, are mainly used in electric power system for transformer oil change, transformer oil strain, transformer oil compensation as well as transformer repair etc. transformer oil strain and compensation often occur when high-power transformer, circuit breaker and need emergency repair. A steeliness tank of 10 20 cubic meters is about 1 2 ton. It needs periodical maintenance and crane to transport. However collapsible tanks have many strong points, such as Light weight , small size after folding, easy to operate and transport, no oil contamination,no special maintenance, which greatly lower labor intensity and effectively short hours. Comparison between collapsible tank and steeliness tank.Functional analysis Collapsible tank (10m3)Steeliness tank(10m3)Maneuvering Abilityafterfolding,small size, Volumeof tank is only0.3m3.The shipping weight is of 57kg.Easy to operate.above 1 ton at large,oversize vehicles and crane s are needed for transportationDaily egular dmpty rage of fuel, oil,MMm Maintenance Workno special maintenance, good resistance to hydrolysis, oils, weather, UV.regular repair, maintenance, preservative treatment neededAffection on Productthe oil touches internal wall of the tanks tightly, there is no space remaining for oil vapor. High Polymer Material have no contamination for oil . surface resistivity is in compliance with the safety standards.when the tank is not full of oil, the space between tank and liquid will be taken up by the oil vapor, which increases time of oil straineatures - Light weight , ease operation. - Minimum packing size, allowing for better transportation and storage. - No fuel contamination, resulting in higher fuel quality. - Superior aging resistance ability.- Meet US MIL Specs and International Standards.- Provide with cam-lock type fitting accessories include: hoses, valves , repair kits, many other items can be supplied as needed. Capacity Shipping Weight Maximum Filled Tank HeightMaximum Empty Size (L×W)Folded Size (L×W×H)working temperature m3Kgmmm2300.502.8×2.20.90×0.75×0.30-50 +803350.553.2×2.50.95×0.80×0.40-50 +805500.603.8×3.21.00×0.80×0.75-50 +8010850.804.4×4.40.90×0.75×0.40-50 +8015900.905.4×4.40.95×0.75×0.45-50 +8020115.006.5×4.40.98×0.80×0.45-50 +80251251.107.0×4.71.05×0.80×0.40-50 +80502201.108.5×7.01.50×0.90×0.50-50 +80763301.2011.6×7.01.60×1.10×0.70-50 +801003901.2011.0×9.51.50×1.10×0.70-50 +802006301.6016.6×9.52.00×1.10×0.90-50 +8040010501.7017.2×15.74.25×1.00×0.70-50 +80 In addition to above specifications, we can designed based on customer requirements. .