Frequently Asked
Questions

Sun Flexitanks operates from two offices — our headquarters in Mumbai, India (Orient House, Adi Marzban Path, Ballard Estate, Fort, Mumbai 400001) and our Middle East office in Dubai, UAE (Bayswater by Omniyat, Marasi Drive, Business Bay). We also have a distribution agent in São Paulo, Brazil through Lion Logistics.

Sun Flexitanks operates in more than 5 regions worldwide including the MENA region, India, South America, Africa, and Oceania — shipping to 50+ countries globally.

You can reach our team by emailing info@sunflexitanks.com or by calling our Mumbai office at +91 22 6633 3999 or our Dubai office at +971 45 786 911. Our team will guide you through product selection, configuration, and logistics.

Yes — Sun Flexitanks is a member of the Container Owners Association (COA) and is listed on the COA Flexitank Quality List (FQL), reflecting our commitment to the highest standards of flexitank manufacturing and safety.

Our products are certified to ISO 9001:2015 (Quality Management), ISO 14001:2015 (Environmental Management), and ISO 22000 (Food Safety Management for Reefer products). They are also FDA compliant, SGS certified, Kosher approved, Halal certified, and listed on the COA Flexitank Quality List.

Yes — all Sun Flexitanks products are insured against manufacturing defects as standard. Documentation can be provided as part of your shipment package upon request.

Sun Flexitanks are suitable for a wide range of non-hazardous bulk liquids including edible oils, glycerine, latex, fruit juices, cosmetic bases, non-hazardous chemicals, and pharmaceutical-grade liquids. They are not suitable for hazardous or flammable cargo.

Flexitanks are available from 16,000 litres up to 24,000 litres, all fitting a standard 20ft ISO shipping container. Our team will advise the best configuration based on your cargo density and volume requirements.

A Flexitank carries 44% more payload than drums and 15% more than IBCs in the same 20ft container. It also eliminates the cost of return logistics, cleaning, and storage associated with reusable containers.

Sun Flexitanks support three configurations: Top Load/Top Discharge, Top Load/Bottom Discharge, and Bottom Load/Bottom Discharge. The right option depends on your filling and pumping infrastructure at origin and destination.

The auto air-vent automatically releases excess internal air pressure that builds during transit — preventing deformation, stress on the outer layer, and potential leakage. It functions as a continuous balance vent with no manual intervention required.

Yes — every Sun Flexitank is insured against manufacturing defects as standard. Our team can provide full insurance documentation as part of the shipment package.

The Vinotank is suitable for all bulk wine types — red, white, rosé, and sparkling. The food-grade polyethylene inner layers and aluminium oxygen barrier ensure no flavour contamination or oxidation during transit.

Vinotanks are available from 16,000 litres up to 24,000 litres, fitting a standard 20ft ISO shipping container. Our team can advise on the best configuration for your shipment volume.

A single 20ft container fitted with a Vinotank can carry up to 24,000 litres — versus approximately 9,900 litres when packed with 75cl bottles. That's a 40%+ increase in volume per container, with dramatically less packaging waste.

Yes — the Vinotank is designed for single use to maintain hygiene and product integrity. It is fully recyclable and compliant with ISO 9001, FDA, and EU regulations governing food-contact packaging.

Standard wine pumping equipment compatible with food-grade flexible hose is all that's required. Our technical support team can provide full filling and discharge guidance as part of your order.

The inner polyethylene layers are rated from −25°C to +60°C, making the Vinotank suitable for all standard shipping lanes and climatic conditions worldwide.

For cargoes that solidify when cooled — such as palm oil, animal fats, or waxes — the E-Wave Heater Pad is recommended due to its faster, bottom-up heating. For general viscous liquid cargoes where gradual all-round heating is sufficient, the Steam Heater Pad is the more cost-effective choice.

Yes — the Steam Heater Pad can be reused up to five times, making it a highly cost-effective solution for regular shipments on the same trade lane.

The E-Wave Heater Pad requires an electrical supply at the discharge port. The Steam Heater Pad uses hot water or steam, which is available at most major ports worldwide, making it easier to deploy in a wider range of locations.

Yes — both heater pad types are compatible with all Sun Flexitank configurations, including the standard Flexitank and Vinotank, across all capacity sizes from 16,000L to 24,000L.

Heater pads can be specified at the time of order or arranged separately. Contact our team as early as possible so we can ensure the correct configuration is prepared and shipped together with your Flexitank.

Heater pads are commonly used for palm oil, crude palm kernel oil, animal fats, tallow, technical tallows, waxes, and other cargoes with elevated pour points that require heating to remain pumpable during discharge.

A Reefer Flexitank is a food-grade flexible bulk liquid container designed specifically for use inside refrigerated (reefer) shipping containers. It allows temperature-sensitive liquids like wine, juice, and milk to be transported in bulk while maintaining a controlled cold chain throughout the journey.

The 20' Reefer Flexitank is a single unit designed for a standard 20-foot reefer container. The 40' configuration uses three separate flexitanks (each 5KL–8KL) inside a 40-foot reefer container, making it ideal for higher-volume shipments or for regions where 20-foot containers are in short supply.

Reefer Flexitanks are designed for temperature-sensitive, food-grade bulk liquids — including wine, fruit juices, milk, dairy products, and other beverages. They are not suitable for non-food or hazardous liquid cargo.

Gamma ray sterilisation is applied to the flexitank materials to eliminate all microorganisms — including bacteria, fungi, and parasites — by disrupting their DNA. This is a critical step for food-grade applications where cargo purity and contamination prevention are paramount.

Reefer Flexitanks offer a significantly more cost-effective solution for bulk liquid transport compared to ISO-tank containers. They eliminate the cost of tank cleaning, return logistics, and depot storage, while offering 25% more payload than IBCs and 50% more than drums.

The EVOH/Aluminium oxygen barrier layer is available as an optional addition on the 40' configuration and can be stitched into the flexitank construction to protect oxygen-sensitive cargo from migration, taste transfer, or odour contamination. Please enquire with our team for availability on the 20' configuration.

We recommend placing orders at least 2–3 weeks before your intended shipping date to allow for configuration, production, and logistics coordination. For custom configurations or large volumes, please contact us as early as possible.

Yes — our technical team can work with you on bespoke tank configurations for unique cargo requirements. Contact us with your specific needs and we'll advise on the best solution.

Yes — our dedicated technical support team is available to guide you through filling, sealing, and discharge best practices. Full operating instructions are also provided with every order.