Pillow / Bladder Tanks
Closed flexible containment for temporary water storage, agriculture, job sites, remote supply and compact empty-state logistics.
- Closed containment
- Low-profile filled form
- Custom connection layout
DERFLEX supplies flexible tarpaulin water tanks and water bladders in bulk for irrigation, construction, emergency reserve, remote water handling and private-label distribution. Wholesale programs can be configured around tank style, working capacity, PVC or TPU coated fabric, inlet/outlet system, color, branding, accessory kit and export packing.
For buyers comparing suppliers, the useful quotation is not simply a price per tank. It should define the approved material, tank geometry, fittings, seam route, packing scope and repeat-order controls so every supplier is quoting the same product.
What should a buyer specify when sourcing tarpaulin water tanks wholesale? Start with the stored water or liquid, required usable capacity, maximum footprint, tank format, PVC or TPU preference, inlet/outlet and hose standard, quantity per size, branding, accessories, packing, destination and any required water-contact or project compliance. This gives the factory enough information to quote a repeatable commercial product instead of a generic “water bag.”
A wholesale program is easier to sell, pack and reorder when each model has a clear job. Start with a small number of repeatable tank formats, then expand after the fittings, materials and packaging are proven.
Closed flexible containment for temporary water storage, agriculture, job sites, remote supply and compact empty-state logistics.
Foldable systems for buyers who care about packed volume, repeated deployment, ground protection, quick connections and return-to-storage procedures.
Useful where visual access, a defined footprint, rapid fill-and-drain operation or replaceable liner concepts matter more than closed storage.
Capacity, tank geometry, connection points, color, marking, repair kit and packaging can be developed around a distributor SKU or project drawing.
A tarpaulin water tank is a flexible liquid-storage system made from reinforced coated textile rather than rigid steel or molded plastic. The polyester base fabric carries tensile loads, while the PVC or TPU coating provides the flexible waterproof barrier and a surface suitable for compatible welding.
For wholesale procurement, the product should be treated as one assembled system: coated fabric + tank geometry + welded seams + fitting reinforcement + valves + ground interface + packing. Changing only one of these elements can change how the tank handles filling, transport, repeated folding and field use.
The correct material depends on the product range you plan to sell, not on one universal “premium” label. Approve the coated fabric and the tank fabrication route together.
| Decision Point | PVC Coated Fabric Direction | TPU Coated Fabric Direction |
|---|---|---|
| Commercial positioning | Common route for general industrial, agricultural and project water-storage programs where cost-performance balance matters. | Can be evaluated for specialized programs requiring a different flexibility, abrasion or contact-performance profile. |
| Folding & handling | Suitable for collapsible constructions when coating, temperature and folding cycle are matched to the intended use. | May provide a different low-temperature and repeated-folding profile depending on formulation and textile construction. |
| Welding | HF/RF, hot-air or other compatible route depending on the selected fabric and tank design. | Compatible heat-welding route must be validated for the exact TPU construction and production process. |
| Water contact | The exact coating formulation, fittings and finished system must match the required water-contact standard. | The same rule applies: TPU by itself is not a potable-water certification. |
| Wholesale use | Strong direction for broad distributor portfolios and price-sensitive project supply. | Useful for selected premium or specialized SKUs where project requirements justify the material route. |
For material-only or specialized bladder programs, review TPU flexible water tank fabric.
Two quotations are only comparable when the suppliers are quoting the same material, tank geometry, connection package, branding scope and packing basis.
| Specification Item | What to Define | Why It Matters |
|---|---|---|
| Stored liquid | Water type or exact liquid / mixture; contact and compliance requirements | Material and fittings must suit the stored media and destination requirements. |
| Working capacity | Required usable volume plus maximum available length × width × height | The same liters can create different hydrostatic load and footprint conditions. |
| Coated fabric | PVC or TPU direction, thickness / weight target, color and finish | The body material affects flexibility, weldability, handling and project suitability. |
| Seams | Compatible welding route, overlap direction and high-stress reinforcement | Seam design is part of the liquid-containment system, not a cosmetic detail. |
| Fittings | Inlet, outlet, drain, vent, flange, hose and coupling standard | A tank is difficult to use if the connection package does not match pumps and hoses on site. |
| Accessories | Groundsheet, repair kit, spare cap / fitting, storage bag and handling items | Accessories affect field usability, service support and distributor product completeness. |
| Branding | Logo position, color, model code, warning / care label and instruction content | Private-label SKUs should be repeatable across future orders. |
| Export packing | Individual pack, carton / bundle, pallet, shipping marks and accessory placement | Packing influences freight, warehouse handling and damage risk. |
Wholesale price is usually driven by the complete product specification rather than capacity alone. A useful RFQ should let each supplier quote the same scope.
Coated-fabric construction, tank footprint, working volume, panel count and reinforcement zones influence material consumption and fabrication work.
Connection size, flange type, hose adapters, vents, groundsheet, repair kit and storage bag can materially change the quotation basis.
Custom labels, color, printing, mixed sizes, carton requirements, palletization, inspection scope and total order quantity affect commercial structure.
DERFLEX does not publish one universal MOQ or production lead time for every tank. Both depend on tank size, material, fitting set, custom branding, packaging, sample approval, order quantity and current production schedule. Confirm the applicable MOQ and lead time on the formal quotation for the exact product program.
Private-label programs work best when the product specification and the packaging specification are approved at the same time. That reduces ambiguity when the same model is reordered months later.
Capacity, tank type, filled dimensions, material and connection layout.
Color, logo location, model code, warning label and care information.
Groundsheet, repair items, spare fittings, storage bag and manuals.
Inner bag, carton or bundle, pallet request and shipping marks.
Real DERFLEX site images show how flexible coated-fabric tanks can vary by shape, scale, installation and connection layout.
For repeat orders, “same quality” is too vague. Define the critical checkpoints that must remain consistent from sample approval through bulk production.
Roll identity, appearance, target weight / thickness direction, coating condition and order-specific material reference.
Cutting dimensions, seam appearance, weld consistency and reinforcement around corners, valves and other high-stress zones.
Dimensions, fitting attachment, workmanship, agreed leak / tightness inspection route, marking and accessories.
Model identification, logo and labels, accessory count, packing method, shipping marks and final quantity before loading.
For projects where higher load, larger capacity or more demanding operating conditions are the main concern, compare the dedicated heavy duty tarpaulin tank wholesale program and the large capacity flexible water tank engineering guide.
The same tank format is not equally useful in every market. Product-line planning should start with the end-use workflow and connection requirements.
Seasonal water reserve, remote field supply, irrigation support and farm water management. Buyers should define UV exposure, pump connection, relocation frequency and ground condition.
Temporary water storage, wash-down, dust-control support and remote worksite supply where rigid tanks are difficult to transport or relocate.
Fast-deploy storage for response programs, temporary supply points and contingency water management. Packed dimensions and accessory standardization matter for storage readiness.
A focused range with a few clear capacities, one connection standard and repeatable packaging is usually easier to stock and reorder than a large collection of unrelated custom models.
Selected process-water and temporary liquid-containment projects require liquid compatibility, temperature, contact time and secondary-containment review before material approval.
Non-standard footprint, connection location, color, branding and accessory requirements can be reviewed from drawings or an approved sample.
A repeatable supply program begins by freezing the specification before the first bulk run.
A tank can meet the requested volume and still be unsuitable for the available footprint, fill rate, ground surface or connection system.
Different fabrics, valves, accessories and packing can make two “same size” quotations technically different products.
Specify the full connection chain instead of asking only for “one inlet and one outlet.”
Waterproof construction is not the same as drinking-water approval. State the destination market and required contact standard before production.
Repeat orders can still vary if labels, accessories, cartons, shipping marks and pallet requirements are not approved with the tank.
For long-term supply, require material or component changes to be reviewed before the next production lot rather than substituted without approval.
A complete inquiry helps DERFLEX recommend the tank format, material direction and commercial structure without guessing at critical requirements.
Submit Your Wholesale RFQShort answers for distributors, importers, contractors and project buyers comparing bulk flexible water tank suppliers.
For B2B procurement, source from a manufacturer or supplier that can define the coated fabric, tank geometry, seam route, fitting specification, branding, export packing and repeat-order controls. DERFLEX supports bulk, OEM, private-label and project supply for flexible tarpaulin water tanks and water bladders.
MOQ depends on the tank size, material, fitting set, custom color or logo, packaging, sample route and whether a new material or custom model is required. The applicable MOQ should be confirmed after the product specification is defined.
Price is influenced by working capacity, tank geometry, coated-fabric construction, seam and reinforcement design, fittings, accessories, branding, export packing, inspection requirements and total order quantity. Compare suppliers against the same written specification.
Yes. OEM and private-label programs can discuss tank size, material direction, color, logo, labels, connection layout, accessory kit and packing. For repeat orders, approve the product and packaging specification together.
PVC coated polyester is widely used for general industrial, agricultural and project tanks with broad cost-performance flexibility. TPU can be evaluated for selected specialized programs requiring a different flexibility, folding or contact-performance profile. The correct choice depends on the stored water or liquid, temperature, handling cycle, weld route and compliance requirement.
Do not assume potable-water suitability simply because the tank is waterproof. State the destination market and required water-contact standard so the exact coating formulation, fittings, fabrication route and documentation can be reviewed before approval.
Confirm the approved material, finished dimensions, seam workmanship, fitting type and location, agreed leak or tightness inspection, logo and label artwork, accessory list, quantity, packed dimensions, shipping marks and any inspection records required by the purchase order.
Sen, d the tank format, usable capacity, liquid, available footprint, fitting sizes, quantity, branding, packing and destination. DERFLEX can review the material direction and wholesale configuration before quotation.
Specification, capacity, material, water-contact suitability, MOQ and lead time are confirmed by project and order requirements.