# Henan Zonghai Plastic Industry Co., Ltd. | expandable water bladder with warranty,flexible water tank 6 years,long-lasting water storage bladder, Customized Flexible Water Tank,Truck Flexible Water Tank,Ship Flexible Water Tank, Lightweight Pillow Tank,Corrosion Resistant Pillow Tank,Liquid Transportation Pillow Tank, 

## summary
> Manufacturer, Exporter, Seller, Trading Company, Distributor/Wholesaler, Importer, Agent, Brands: ZHSY, The company always adheres to the corporate philosophy of "paying attention to details and striving for excellence", humbly listens to the suggestions of senior distributors and operators in the industry, and continues to carry out technological innovation and product research and development to meet the diverse needs of the market for products. In the new year, the company will continue to adhere to the corporate spirit of "quality, efficiency, low consumption, and striving to exceed customer n, Established in 2013, Employees: 100~170, Annual sales: 20 million-50 million, Export ratio: 70% - 80%, Primary markets: Worldwide.

## Company Information

 *  [Company Profile](https://www.watertankflexible.com/aboutus.html): Overview, history, teams and core capabilities.
 *  [Factory & Manufacturing](https://www.watertankflexible.com/factory.html): Production capacity, OEM/ODM capabilities, and R&D strength.
 *  [Quality Control](https://www.watertankflexible.com/quality.html): ISO certifications, quality standards, and compliance.
 *  [Contact Us](https://www.watertankflexible.com/contactus.html): Global offices, inquiries, and support channels.

## Product Category

* [Flexible Water Tank](https://www.watertankflexible.com/supplier-4760480-flexible-water-tank): Keywords: Flexible Water Bladder,Flexible Water Storage Tanks,Flexible Storage Tank.
* [Onion Tank](https://www.watertankflexible.com/supplier-4760484-onion-tank): Keywords: Agriculture Onion Tank,Round Onion Water Storage Tank,Onion Shaped Water Storage Bladder.
* [Pillow Tank](https://www.watertankflexible.com/supplier-4760481-pillow-tank): Keywords: Food Grade Flexible Pillow Tank,Liquid Preservation Pillow Tank,Multiple Sectors Pillow Tank.
* [Rectangular Tank](https://www.watertankflexible.com/supplier-4760483-rectangular-tank): Keywords: Flexible Rectangular Storage Tanks,Industrial Rectangular Storage Tanks,Rectangular Flexible Water Bladder Tanks.
* [Flexibag Container](https://www.watertankflexible.com/supplier-4760486-flexibag-container): Keywords: Reusable Flexibag Container,Recyclable Flexibag Container,Eco Friendly Flexitank Container.
* [Flexible Fuel Tank](https://www.watertankflexible.com/supplier-4760489-flexible-fuel-tank): Keywords: Flexible Fuel Tank,Portable Fuel Bladder,Industrial Fuel Storage,Collapsible Fuel Tank.
* [Pre Pressurized Water Tank](https://www.watertankflexible.com/supplier-4760490-pre-pressurized-water-tank): Keywords: Construction Pressurized Water Storage Tank,Environmentally Friendly Water Storage Tank,Flexible Pressurized Water Storage Tank.
* [Biogas Digester Tank](https://www.watertankflexible.com/supplier-4760491-biogas-digester-tank): Keywords: Sustainable Biogas Digester Tank,Mechanical Mixing Biogas Digester Tank,Flexible Bio Digester Tank.
* [HDPE Geomembrane Liners](https://www.watertankflexible.com/supplier-4760493-hdpe-geomembrane-liners): Keywords: HDPE Geomembrane Liners 0.5mm,HDPE Geomembrane Liners 1.5mm,Aquaculture HDPE Geomembrane Liners.
* [PVC Fish Pond](https://www.watertankflexible.com/supplier-4760494-pvc-fish-pond): Keywords: Galvanized Pipe Canvas Fish Pond,Fish Farming Canvas Fish Pond,Eco Friendly Canvas Fish Pond.
* [PVC Swimming Pool](https://www.watertankflexible.com/supplier-4760498-pvc-swimming-pool): Keywords: Trestle PVC Swimming Pool,Detachable PVC Swimming Pool,Customized PVC Swimming Pool.
* [Inflatable Amusement Equipment](https://www.watertankflexible.com/supplier-4760500-inflatable-amusement-equipment): Keywords: PVC Inflatable Amusement Equipment,PVC Slide Bounce,PVC Inflatable Slide Bounce.
* [Camping Glamping Tent](https://www.watertankflexible.com/supplier-4791709-camping-glamping-tent): Keywords: 900D Oxford fabric camping tent,4-6 person waterproof tent,3000MM waterproof camping tent.

## Featured Products

* [Expandable Water Bladder 100cm X 50cm X 30cm 6 Years of Long-Lasting Water Storage](https://www.watertankflexible.com/sale-53887927-expandable-water-bladder-100cm-x-50cm-x-30cm-6-years-of-long-lasting-water-storage.html): Keywords: expandable water bladder with warranty,flexible water tank 6 years,long-lasting water storage bladder.
* [Antioxidant Flexible Storage Tank For Agriculture And Animal Husbandry Liquids](https://www.watertankflexible.com/sale-52448625-antioxidant-flexible-storage-tank-for-agriculture-and-animal-husbandry-liquids.html): Keywords: Antioxidant Flexible Storage Tank,Animal Husbandry Flexible Storage Tank,Agriculture Liquids Flexible Storage Tank.
* [Lightweight Pillow Tank Corrosion Resistant For Liquid Storage And Transportation](https://www.watertankflexible.com/sale-52185282-lightweight-pillow-tank-corrosion-resistant-for-liquid-storage-and-transportation.html): Keywords: Lightweight Pillow Tank,Corrosion Resistant Pillow Tank,Liquid Transportation Pillow Tank.
* [Leak Proof Flexible Tank 0.85mm-1.2mm Thickness For Liquid Transportation And Storage](https://www.watertankflexible.com/sale-52171611-leak-proof-flexible-tank-0-85mm-1-2mm-thickness-for-liquid-transportation-and-storage.html): Keywords: Leak Proof Flexible Tank,1.2mm Thickness Flexible Tank,Liquid Transportation Flexible Tank.
* [Customized Flexible Water Tank For Truck Ship Airplane Transportation](https://www.watertankflexible.com/sale-52389378-customized-flexible-water-tank-for-truck-ship-airplane-transportation.html): Keywords: Customized Flexible Water Tank,Truck Flexible Water Tank,Ship Flexible Water Tank.
* [Foldable Pillow Tanks For Non Reactive Compounds Safe Storage In Industrial Settings](https://www.watertankflexible.com/sale-52447594-foldable-pillow-tanks-for-non-reactive-compounds-safe-storage-in-industrial-settings.html): Keywords: Non Reactive Compounds Pillow Tanks,Industrial Settings Pillow Tanks,Foldable Pillow Bladder Tanks.
* [Lightweight Pillow Tank Corrosion Resistant For Flexible Storage And Transportation Of Liquid](https://www.watertankflexible.com/sale-52448441-lightweight-pillow-tank-corrosion-resistant-for-flexible-storage-and-transportation-of-liquid.html): Keywords: Flexible Storage Pillow Tank,Lightweight Flexible Storage Tank,Corrosion Resistant Flexible Tank.
* [Flexible Storage Tank For Chemical Engineering Food And Emergency Rescue](https://www.watertankflexible.com/sale-52449146-flexible-storage-tank-for-chemical-engineering-food-and-emergency-rescue.html): Keywords: Chemical Engineering Flexible Storage Tank,Food Flexible Storage Tank,Emergency Rescue Flexible Storage Tank.
* [Lightweight Flexible Tanks For Food Industrial And Agricultural Applications](https://www.watertankflexible.com/sale-52452569-lightweight-flexible-tanks-for-food-industrial-and-agricultural-applications.html): Keywords: Lightweight Flexible Tanks,Food Industrial Flexible Tanks,Agricultural Flexible Tanks.
* [PE / PP / PVC / TPU Flexible Storage Tanks With Rust Prevention](https://www.watertankflexible.com/sale-52354713-pe-pp-pvc-tpu-flexible-storage-tanks-with-rust-prevention.html): Keywords: TPU Flexible Storage Tanks,Rust Prevention Flexible Storage Tanks,PE Flexible Storage Tanks.

## Case Studies & Applications

* [Construction site of red mud biogas digester](https://www.watertankflexible.com/cases/construction-site-of-red-mud-biogas-digester-26666.html)
* [Exhibition of Pre Pressure Flexible Tank for Roads](https://www.watertankflexible.com/cases/exhibition-of-pre-pressure-flexible-tank-for-roads-26667.html)
* [Construction site of Pre pressure flexible tank for bridge](https://www.watertankflexible.com/cases/construction-site-of-pre-pressure-flexible-tank-for-bridge-26669.html)
* [Construction site of black HDPE Geomembrane Liners](https://www.watertankflexible.com/cases/construction-site-of-black-hdpe-geomembrane-liners-26665.html)
* [PVC Water Storage Bladders Onion Shaped Conical Water Tanks Multi-Color Options Customizable Leak-Proof Expandable Water](https://www.watertankflexible.com/cases/pvc-water-storage-bladders-onion-shaped-conical-water-tanks-multi-color-options-customizable-leak-pr-48308.html)
* [ZHSYflexitank Mobile TPU Water Bladders: Solving Water Supply Challenges in Extreme Drought and Emergency Response](https://www.watertankflexible.com/cases/zhsyflexitank-mobile-tpu-water-bladders-solving-water-supply-challenges-in-extreme-drought-and-emerg-48489.html)
* [Flexible Water Storage in Africa: A Practical Case Study on PVC Onion-Shaped Bladder Tanks](https://www.watertankflexible.com/cases/flexible-water-storage-in-africa-a-practical-case-study-on-pvc-onion-shaped-bladder-tanks-49145.html)
* [Flexible Water Storage Solutions in Emerging Environments: Case Study on PVC Onion-Shaped Bladder Tanks](https://www.watertankflexible.com/cases/flexible-water-storage-solutions-in-emerging-environments-case-study-on-pvc-onion-shaped-bladder-tan-49147.html)
* [How a U.S. Agricultural Equipment Distributor Purchased TPU Large Capacity Fuel Oil Storage Bags for Remote ](https://www.watertankflexible.com/cases/how-a-u-s-agricultural-equipment-distributor-purchased-tpu-large-capacity-fuel-oil-storage-bags-for--49682.html)
* [How a U.S. agricultural distributor purchased 48 TPU fuel storage bladders for remote farm operations](https://www.watertankflexible.com/cases/how-a-u-s-agricultural-distributor-purchased-48-tpu-fuel-storage-bladders-for-remote-farm-operations-49683.html)
* [How a Canadian Marine Logistics Company Purchased 60 TPU Flexible Fuel Storage Bladders for Remote Operation](https://www.watertankflexible.com/cases/how-a-canadian-marine-logistics-company-purchased-60-tpu-flexible-fuel-storage-bladders-for-remote-o-49686.html)
* [Export Case Study: How Henan Zonghai Plastic Industry Delivered 8,000 TPU Water Storage Bladders to an Indian Infrastruc](https://www.watertankflexible.com/cases/export-case-study-how-henan-zonghai-plastic-industry-delivered-8-000-tpu-water-storage-bladders-to-a-50330.html)
* [Smallholder Biogas Deployment in Northern Thailand: A Flexible Digester Project by Henan Zonghai Plastic Industry](https://www.watertankflexible.com/cases/smallholder-biogas-deployment-in-northern-thailand-a-flexible-digester-project-by-henan-zonghai-plas-51467.html)
* [Village Livestock Waste Management in Vietnam: Modular Biogas Systems by Henan Zonghai Plastic Industry](https://www.watertankflexible.com/cases/village-livestock-waste-management-in-vietnam-modular-biogas-systems-by-henan-zonghai-plastic-indust-51469.html)
* [The "Zero-Infrastructure" Solution for California’s Central Valley Agriculture](https://www.watertankflexible.com/cases/the-zero-infrastructure-solution-for-california-s-central-valley-agriculture-52734.html)
* [Wildfire Defense in the Texas Hill Country](https://www.watertankflexible.com/cases/wildfire-defense-in-the-texas-hill-country-52748.html)
* [Post-Hurricane Industrial Recovery in the Gulf Coast](https://www.watertankflexible.com/cases/post-hurricane-industrial-recovery-in-the-gulf-coast-52752.html)
* [Transforming California’s "Liquid Gold" Export Logistics](https://www.watertankflexible.com/cases/transforming-california-s-liquid-gold-export-logistics-52764.html)
* [Solving the "Last-Mile" Industrial Lubricant Crisis in the Canadian Oil Sands](https://www.watertankflexible.com/cases/solving-the-last-mile-industrial-lubricant-crisis-in-the-canadian-oil-sands-52765.html)
* [The Sustainable Pivot for East Coast Non-Hazardous Chemical Manufacturers](https://www.watertankflexible.com/cases/the-sustainable-pivot-for-east-coast-non-hazardous-chemical-manufacturers-52766.html)
* [Resolving the "Methane Mandate" for Ontario’s Dairy Belt](https://www.watertankflexible.com/cases/resolving-the-methane-mandate-for-ontario-s-dairy-belt-52767.html)
* [High-Density Swine Farming in North Carolina – The "Odor vs. Growth" Conflict](https://www.watertankflexible.com/cases/high-density-swine-farming-in-north-carolina-the-odor-vs-growth-conflict-52768.html)
* [The "Closed-Loop" Urban Brewery in the Pacific Northwest](https://www.watertankflexible.com/cases/the-closed-loop-urban-brewery-in-the-pacific-northwest-52769.html)
* [The "Arctic Fuel Bridge" – Overcoming Sub-Zero Logistics in Northern Canada](https://www.watertankflexible.com/cases/the-arctic-fuel-bridge-overcoming-sub-zero-logistics-in-northern-canada-52770.html)
* [Fast-Response Aviation Fueling for Wildfire Suppression in California](https://www.watertankflexible.com/cases/fast-response-aviation-fueling-for-wildfire-suppression-in-california-52771.html)
* [Disaster Recovery & "Grid Resilience" for Texas Data Centers](https://www.watertankflexible.com/cases/disaster-recovery-52772.html)
* [Climate-Adaptive Biogas Systems in Indonesia: A Flexible Digester Case from Henan Zonghai Plastic Industry](https://www.watertankflexible.com/cases/climate-adaptive-biogas-systems-in-indonesia-a-flexible-digester-case-from-henan-zonghai-plastic-ind-51471.html)
* [Subverting the Permafrost Trap in Yakutia’s Extractive Industries](https://www.watertankflexible.com/cases/subverting-the-permafrost-trap-in-yakutia-s-extractive-industries-55481.html)
* [Agricultural Resilience Amidst Hydrological Shifts in Krasnodar Krai](https://www.watertankflexible.com/cases/agricultural-resilience-amidst-hydrological-shifts-in-krasnodar-krai-55491.html)
* [Sustaining Municipal Heating Grids During Siberian Winter Crises](https://www.watertankflexible.com/cases/sustaining-municipal-heating-grids-during-siberian-winter-crises-55492.html)
* [Tactical Fluid Relays in Far Eastern Taiga Wildfire Containment](https://www.watertankflexible.com/cases/tactical-fluid-relays-in-far-eastern-taiga-wildfire-containment-55494.html)
* [The "Frozen Silk Road" – Overcoming Sub-Zero Logistics for Siberian Sunflower Oil Exports](https://www.watertankflexible.com/cases/the-frozen-silk-road-overcoming-sub-zero-logistics-for-siberian-sunflower-oil-exports-55498.html)
* [Industrial Resilience in St. Petersburg – Replacing ISO Tanks for Non-Hazardous Chemical Distribution](https://www.watertankflexible.com/cases/industrial-resilience-in-st-petersburg-replacing-iso-tanks-for-non-hazardous-chemical-distribution-55499.html)
* [The Southern Harvest – Scaling Bulk Wine & Juice Exports via Novorossiysk](https://www.watertankflexible.com/cases/the-southern-harvest-scaling-bulk-wine-55500.html)
* [Emergency Infrastructure – Flexible Fuel Storage for Remote Mining in the Ural Mountains](https://www.watertankflexible.com/cases/emergency-infrastructure-flexible-fuel-storage-for-remote-mining-in-the-ural-mountains-55503.html)
* [The Urban Water Crisis – Rapid Response Potable Water Storage in Kazan](https://www.watertankflexible.com/cases/the-urban-water-crisis-rapid-response-potable-water-storage-in-kazan-55504.html)
* [Overcoming the Siberian Permafrost – Thermal Integration in Novosibirsk](https://www.watertankflexible.com/cases/overcoming-the-siberian-permafrost-thermal-integration-in-novosibirsk-55554.html)
* [The "Mobile Energy" Revolution in the Krasnodar Steppes](https://www.watertankflexible.com/cases/the-mobile-energy-revolution-in-the-krasnodar-steppes-55555.html)
* [Solving the Methane Leakage Crisis in Leningrad Industrial Zones](https://www.watertankflexible.com/cases/solving-the-methane-leakage-crisis-in-leningrad-industrial-zones-55556.html)
* [Remote Power for Livestock Clusters in the Altai Republic](https://www.watertankflexible.com/cases/remote-power-for-livestock-clusters-in-the-altai-republic-55557.html)
* [The Economic Resilience of a Belgorod Dairy Cooperative](https://www.watertankflexible.com/cases/the-economic-resilience-of-a-belgorod-dairy-cooperative-55558.html)
* [Surviving the Yakutian Deep Freeze – Agility in Arctic Mining Logistics](https://www.watertankflexible.com/cases/surviving-the-yakutian-deep-freeze-agility-in-arctic-mining-logistics-55561.html)
* [The Kamchatka Ecological Paradox – Protecting Pristine Wilderness](https://www.watertankflexible.com/cases/the-kamchatka-ecological-paradox-protecting-pristine-wilderness-55562.html)
* [The Ural Mobility Imperative – Chasing the Timber Line](https://www.watertankflexible.com/cases/the-ural-mobility-imperative-chasing-the-timber-line-55563.html)
* [The Southern Breadbasket Boom – Shifting CAPEX to OPEX](https://www.watertankflexible.com/cases/the-southern-breadbasket-boom-shifting-capex-to-opex-55564.html)
* [The Yamal Ground Shift – Engineering With the Permafrost](https://www.watertankflexible.com/cases/the-yamal-ground-shift-engineering-with-the-permafrost-55565.html)
* [Eco-Compliance in Arctic Oil & Gas Fracking Fluid Management](https://www.watertankflexible.com/cases/eco-compliance-in-arctic-oil-55495.html)
* [Why Do Mountain Mining Camps in Peru Reject Steel Tanks for Flexible Bladders?](https://www.watertankflexible.com/cases/why-do-mountain-mining-camps-in-peru-reject-steel-tanks-for-flexible-bladders-59404.html)
* [How Can Coastal Peruvian Farms Minimize Irrigation Water Losses in Desert Terrain?](https://www.watertankflexible.com/cases/how-can-coastal-peruvian-farms-minimize-irrigation-water-losses-in-desert-terrain-59406.html)
* [What is the Fastest Way to Deploy Potable Water Storage During Peru's El Niño Floods?](https://www.watertankflexible.com/cases/what-is-the-fastest-way-to-deploy-potable-water-storage-during-peru-s-el-ni-o-floods-59408.html)
* [How to Transport 50,000 Liters of Drinking Water via Shallow Rivers in the Peruvian Jungle?](https://www.watertankflexible.com/cases/how-to-transport-50-000-liters-of-drinking-water-via-shallow-rivers-in-the-peruvian-jungle-59409.html)
* [Why Are Peruvian Municipalities Substituting Concrete Cisterns with Stackable Bladders?](https://www.watertankflexible.com/cases/why-are-peruvian-municipalities-substituting-concrete-cisterns-with-stackable-bladders-59410.html)
* [Why Are Peruvian Fish Oil Exporters Abandoning ISO Tanks for Flexitanks in Global Shipments?](https://www.watertankflexible.com/cases/why-are-peruvian-fish-oil-exporters-abandoning-iso-tanks-for-flexitanks-in-global-shipments-59411.html)
* [How Do You Safely Transport Mining Reagents Up the Andes Without Catastrophic Spills?](https://www.watertankflexible.com/cases/how-do-you-safely-transport-mining-reagents-up-the-andes-without-catastrophic-spills-59412.html)
* [Can Bulk Flexitanks Solve the Cold-Chain Oxidation Crisis for Peruvian Agro-Exports?](https://www.watertankflexible.com/cases/can-bulk-flexitanks-solve-the-cold-chain-oxidation-crisis-for-peruvian-agro-exports-59413.html)
* [How Are Lima's Biodiesel Startups Beating the Logistics Trap with Liquid Bladders?](https://www.watertankflexible.com/cases/how-are-lima-s-biodiesel-startups-beating-the-logistics-trap-with-liquid-bladders-59414.html)
* [Why Are Andean Dairy Farmers Ditching Concrete Digesters for Flexible Biogas Bladders?](https://www.watertankflexible.com/cases/why-are-andean-dairy-farmers-ditching-concrete-digesters-for-flexible-biogas-bladders-59416.html)
* [How Can Remote Amazonian Communities Turn Cassava Waste into Free Cooking Gas?](https://www.watertankflexible.com/cases/how-can-remote-amazonian-communities-turn-cassava-waste-into-free-cooking-gas-59418.html)
* [Is Your Peruvian Pig Farm Facing Fines? How Commercial Biogas Bladders Solve Effluent Crises.](https://www.watertankflexible.com/cases/is-your-peruvian-pig-farm-facing-fines-how-commercial-biogas-bladders-solve-effluent-crises-59419.html)
* [Can Acidic Coffee Pulp Waste Power Roasting Machines in Peru’s Cloud Forests?](https://www.watertankflexible.com/cases/can-acidic-coffee-pulp-waste-power-roasting-machines-in-peru-s-cloud-forests-59421.html)
* [What is the Fastest Way to Retrofit Municipal Abattoirs with Biogas Capture Systems?](https://www.watertankflexible.com/cases/what-is-the-fastest-way-to-retrofit-municipal-abattoirs-with-biogas-capture-systems-59423.html)
* [Why Are Andean Copper Explorers Abandoning Rigid Diesel Drums for TPU Collapsible Bladders?](https://www.watertankflexible.com/cases/why-are-andean-copper-explorers-abandoning-rigid-diesel-drums-for-tpu-collapsible-bladders-59428.html)
* [El Niño Highway Washouts: What is the Fastest Way for INDECI to Deploy Emergency Diesel Depots?](https://www.watertankflexible.com/cases/el-ni-o-highway-washouts-what-is-the-fastest-way-for-indeci-to-deploy-emergency-diesel-depots-59429.html)
* [Can Flexible TPU Fuel Bladders Survive the Corrosive Salt and Sun of Peru’s Coastal Fishing Ports?](https://www.watertankflexible.com/cases/can-flexible-tpu-fuel-bladders-survive-the-corrosive-salt-and-sun-of-peru-s-coastal-fishing-ports-59436.html)
* [Why Are Lima's "Pueblos Jóvenes" Replacing Contaminated Concrete Cisterns with TPU Polyether Water Bladders?](https://www.watertankflexible.com/cases/why-are-lima-s-pueblos-j-venes-replacing-contaminated-concrete-cisterns-with-tpu-polyether-water-bla-59438.html)
* [How Do You Deliver Safe Drinking Water to the Peruvian Amazon When River Ferries Fail?](https://www.watertankflexible.com/cases/how-do-you-deliver-safe-drinking-water-to-the-peruvian-amazon-when-river-ferries-fail-59439.html)
* [Can Flexible Food-Grade Bladders Solve the Pure Water Crisis for Ica’s Organic Blueberry Exporters?](https://www.watertankflexible.com/cases/can-flexible-food-grade-bladders-solve-the-pure-water-crisis-for-ica-s-organic-blueberry-exporters-59440.html)
* [Are Heavy Metals Leaching into Your High-Altitude Mining Camp's Water Supply? The TPU Polyether Solution](https://www.watertankflexible.com/cases/are-heavy-metals-leaching-into-your-high-altitude-mining-camp-s-water-supply-the-tpu-polyether-solut-59442.html)
* [When El Niño Destroys the Pipes: How Does INDECI Deploy 100,000 Liters of Potable Water in 24 Hours?](https://www.watertankflexible.com/cases/when-el-ni-o-destroys-the-pipes-how-does-indeci-deploy-100-000-liters-of-potable-water-in-24-hours-59443.html)
* [How Can Alpine Eco-Lodges in Cusco Eliminate Plastic Bottle Waste and Guarantee Safe Drinking Water for International To](https://www.watertankflexible.com/cases/how-can-alpine-eco-lodges-in-cusco-eliminate-plastic-bottle-waste-and-guarantee-safe-drinking-water--59444.html)
* [Why Are Coastal Peru’s Food Processors Turning to TPU Polyether Buffer Tanks to Survive Severe Municipal Water Fluctuati](https://www.watertankflexible.com/cases/why-are-coastal-peru-s-food-processors-turning-to-tpu-polyether-buffer-tanks-to-survive-severe-munic-59445.html)
* [How PVC Water Tanks Solve Desert Site Needs?](https://www.watertankflexible.com/cases/how-pvc-water-tanks-solve-desert-site-needs-84061.html)

## FAQ

Q: What is the fastest way to contact your technical and sales staff?
A: To avoid misunderstandings caused by language or cultural differences and to improve communication efficiency, we highly recommend using the following two most convenient methods to contact our project manager, Granger: 
Reply directly via email: watertankflexible@gmail.com 
Add us on WhatsApp for online communication: +8613193536261 (Supports sending images, sharing locations, and scheduling calls) 
Visit our official website: www.watertankflexible.com

Q: What are your policies regarding product shipping and after-sales support?
A: We purchase appropriate shipping insurance for all products during transit. To date, we have ensured that nearly 100% of our customers receive their orders in perfect condition, free of damage . As a testament to our confidence in our product quality and our commitment to first-time clients: If a product is damaged during transit or during the initial period of proper use due to non-human factors, we promise to provide a free replacement of a brand-new product and ship it directly to your country.

Q: How are international shipping costs and the final unit price calculated?
A: * Unit Price: The price of custom products is directly linked to your purchase quantity (the larger the minimum order quantity, the lower the unit price and production cost) as well as the dimensions and materials used. 
International Shipping Costs: Since logistics rates vary by country and port, and freight rates fluctuate frequently, we can only calculate the most accurate and cost-effective shipping rates and delivery times based on total volume and weight after you have confirmed the specific order quantity and specifications and provided a detailed delivery address/port .

Q: What are your international payment terms?
A: Our standard payment terms are: 50% of the total order cost is collected as a deposit prior to production; the remaining 50% is collected after production is complete and quality inspection is passed, but before the products are officially shipped. Payment is made exclusively via wire transfer (T/T).

Q: How are the lead time and shipping time for custom flexible products calculated?
A: Lead Time: Under normal production conditions, for finished products with order quantities under 5,000 units, the production lead time is typically 5–10 days . 
Calculation Method: The cumulative time for shipping/production is calculated starting from the day we officially receive payment . For urgent orders with large volumes, the factory will prioritize scheduling support.

Q: Which international trade delivery terms do you support?
A: Our standard delivery terms are EXW (Ex Works) and FOB (Free On Board) . For certain ports and specific orders, we also support CIF (Cost, Insurance, and Freight) . If you have special delivery term requirements, we are fully flexible and can adjust them through further communication.

Q: What is your minimum order quantity (MOQ)?
A: For most custom-made flexible water bladders, oil bladders, and inflatable products, our MOQ is typically 20 sets . The specific MOQ may vary slightly depending on production materials and specifications; we will inform you as soon as the exact product is confirmed.

Q: How can your household/industrial biogas digesters and inflatable pool products be customized?
A: Biogas digesters: Typically made of corrosion-resistant red PVC, with common thicknesses of 0.9 mm, 1.2 mm, and 1.5 mm (0.9 mm is generally sufficient). Capacity and dimensions can be freely customized to meet specific needs.

Q: What are the specifications for your HDPE geomembrane liners (black membrane)? What is the difference between the old na
A: Our premium HDPE black geomembrane comes in standard rolls with the following specifications: thickness 1.5 mm (or customizable to 1.0 mm / 2.0 mm), width 6 meters, length 50 meters (300 square meters per roll), and a weight of approximately 411 kg per roll. The quality of black liners in China varies widely. While standard national standard products are lower in price, they have a shorter lifespan. We strongly recommend using materials that meet the new national standard, as they are more robust, offer better tensile strength, and provide significant improvements in aging resistance and service life.

Q: How do you select specifications for flexible water bladders (such as onion tanks and rectangular water tanks)?
A: 300L Portable Water Tank: We offer standard rectangular and conical designs. For example, the standard dimensions for a 300L tank are approximately 0.9 × 0.6 × 0.7 m, made from 0.9 mm PVC material. 
· 
3-cubic-meter and 10-cubic-meter water bladders: Recommended dimensions for the 3-cubic-meter model are 2 × 3 × 0.5 m; for the 10-cubic-meter/10-ton model, 3 × 3.4 × 1 m; and for the 20-ton model, 4 × 5 × 1 m. 
· 
Large and Medium Sizes (10,000L - 100,000L): You may provide specific length, width, and height constraints. If you are unsure, simply tell us your required capacity and intended use, and our technical team will provide a free, customized design for the most optimal structural solution.

Q: If I want to purchase container-sized liquid bags or oil bladders, what are the recommended solutions for 20-foot and 40
A: We offer the following efficient, modern logistics packaging solutions: 
20-foot container: 
Theoretical maximum capacity is up to 28 cubic meters. We typically recommend 24 cubic meters or 26 cubic meters (e.g., for transporting low-density ethylene glycol) of single-use liquid bags (1PP+4PE). 
40-foot container: 
The recommended actual dimensions are 12 * 2.3 * 2.3 m, with a volume of 58 cubic meters; the recommended safe working load is within 28 tons. If opting for a single-use solution, we recommend stacking two 16-cubic-meter liquid bags vertically , which is the most stable configuration for a 40-foot container. Similarly, if recycling is an option, you can also customize PVC/TPU container-integrated soft bags that can be reused approximately 50 times.

Q: Is there an upper limit to the custom dimensions of your products? What is the maximum thickness you can achieve?
A: Theoretically, there is no upper limit to our custom dimensions. Whether it’s length, width, or height, we can tailor the design to your specific site conditions or capacity requirements. 
· 
TPU Material Available thickness range: 1.0mm-1.2mm (0.9mm,1.0mm, and 1.2mm) are available for water storage applications. 
· 
· 
PVC Material Available Thickness Range: 0.85 mm – 1.2 mm (0.7 mm or 1.5 mm also available for standard conical tanks or biogas digesters).

Q: Why don’t you offer water bladders made of PES material?
A: Due to its high rigidity and inability to be folded, PES (polyethersulfone) does not meet the core requirements of a water bladder—portability, flexibility, and foldability (PES is primarily used in medical devices, high-temperature filtration membranes, etc.). Therefore, we have chosen PVC and TPU , which offer superior mechanical properties and flexibility, as the core solutions for flexible water/oil storage.

Q: What is the typical lifespan of your products? How do they withstand extreme weather conditions?
A: Whether made of TPU or PVC, the normal lifespan of our products ranges from 10to 12 years , depending on usage frequency and the number of times they are folded. The products have excellent weather resistance; their performance remains unaffected even when exposed to heavy rain, snowstorms, or extreme temperatures.

Q: Do your products have relevant industry quality certifications?
A: Yes, you need not worry about quality or compliance issues. For export, we provide corresponding test reports and international system certifications. For example, our food-grade TPU material is FDA-certified , poses no risk of plasticizer migration, and is safe for contact with juices, dairy products, alcoholic beverages, and more; our military-grade TPU products comply with MIL-STD standards and can be used for field medical applications and military fuel transport.

Q: What are the key advantages of flexible storage tanks compared to traditional steel storage bladder?
A: Flexible storage tanks are gradually replacing steel tanks in modern industry and logistics. Key advantages include: 
Lightweight and Foldable: Extremely lightweight; when emptied and folded, they occupy minimal space (e.g., a 20,000L water bag takes up only 1 square meter when folded), making them easy to store and transport. 
Increased Output and Reduced Costs: Replacing steel tanks in maritime transport can increase cargo capacity by up to 40% , boosting per-vessel profits by 15% . 
Quick Installation and Durability: No complex foundations are required; they can be deployed and put into use immediately after rapid installation. They are rust-proof, corrosion-resistant, and pressure-resistant (capable of being stacked three layers high under static full load and withstanding dynamic transport impacts of up to 9.8m/s²)

Q: What are the main materials you use for production? What are their respective advantages and suitable applications?
A: Our products primarily utilise the following four high-performance materials to meet liquid storage and transportation needs in various environments: 
TPU (Polyester-based / Polyether-based): 
A top-tier material. The polyester-based variant is specifically designed for the storage and transportation of gasoline, diesel, engine oil, and edible oils; the polyether-based variant complies with international water storage standards, is non-toxic and odourless, and offers excellent cold resistance (withstanding temperatures from -50^circtext{C} to +100^circtext{C}). 
PVC: 
A standard material for industrial and water storage applications. Primarily used for non-food water storage (small, medium, and large-scale), firefighting, pre-stressing in construction and bridges, and chemical wastewater treatment. It offers excellent resistance to oxidation and UV radiation. 
HDPE: 
Specifically designed for high-quality geomembrane liners (black membrane), offering exceptional corrosion resistance and leak-proofing capabilities. 
PP + PE: 
Primarily used to manufacture disposable containerised liquid bags (typically a 1-layer PP + 4-layer PE structure or a thicker 3-layer PP + 2-layer PE structure), offering high strength and impact resistance.

Q: How long does it typically take for you to respond after an initial inquiry or message?
A: We commit to providing a detailed response and technical support within 24 hours of receiving your email or WhatsApp message.

Q: Do you support customizing our company’s logo on the products?
A: Absolutely. As a direct-to-manufacturer custom factory, we have no restrictions and can add your company’s logo, name, or any specified commercial mark to the product surface according to your requirements.

Q: What kind of factory is Henan Zonghai Plastic Industry Co., Ltd.?
A: We are a state-of-the-art manufacturing facility (located in Anyang City, Henan Province) that integrates in-house R&D, custom design, professional production, and sales . Equipped with precision temperature- and time-controlled machinery and semi-automated production lines, we specialize in manufacturing high-quality flexible water/oil storage bladders, liquid bags, containerized liquid bags, flexible biogas digesters, and inflatable amusement equipment. Our products are exported to over 30 countries worldwide.

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