If you are sourcing a portable oxygen tank for breathe underwater applications — for recreational diving, commercial operations, or emergency preparedness — you need a partner who delivers consistent purity, certified compliance, and scalable supply. At Zhuzhou XingYe Chemical, we engineer high-purity diving oxygen (≥99.5%) in portable tank configurations specifically for underwater breathing systems. With over 10 years of manufacturing expertise, FDA/ISO-compliant quality systems, and full OEM/ODM flexibility, we help import managers, brand owners, and wholesalers secure reliable gas solutions from China’s most efficient supply chain. Let’s match your tank specs to your market demand.
Why B2B Buyers Struggle to Source Diving Oxygen Tanks
The global diving market is expanding, with the recreational diving equipment segment projected to grow steadily through 2026 and beyond. Yet import managers and brand owners consistently face three core challenges when sourcing portable oxygen tanks for underwater breathing:
- Purity inconsistency — Tanks labeled “oxygen” may contain moisture, trace hydrocarbons, or particulate matter that compromise diver safety and equipment longevity.
- Certification gaps — Many suppliers cannot provide valid DOT (USA), ISO 9809, or CE documentation, creating delays at customs and liability risks for downstream sellers.
- Unreliable lead times — Without vertically integrated manufacturing, buyers often face 60-90 day delays that derail seasonal retail windows or project deadlines.
These pain points are not hypothetical — they directly affect your cost per unit, inventory turnover, and end-user confidence. The solution begins with a manufacturer who treats gas purity and cylinder integrity as non-negotiable.
Our Solution: Portable Oxygen Tanks Engineered for Underwater Breathing
portable underwater oxygen tank portable oxygen tank for diving portable diving oxygen tank
At Zhuzhou XingYe Chemical, we produce portable oxygen tanks for breathe underwater that meet the strictest international standards. Here is how we address each pain point:
Verified Purity ≥99.5%
Each batch is tested with gas chromatography. Our oxygen meets USP/NF and breathing-grade specifications, with Certificate of Analysis (COA) for every fill.
Full Compliance Package
DOT 3AL / 3AA, ISO 9809, CE (PED 2014/68/EU), FDA listing, and MSDS documentation provided with every order. No customs surprises.
30-Day Lead Time
Our factory integration — from cylinder forming to gas filling — enables standard delivery in 25–35 days. Rush orders available for repeat clients.
Comparison: Typical Supplier vs. Zhuzhou XingYe
| Parameter | Average Market Supplier | Zhuzhou XingYe Chemical |
|---|---|---|
| Oxygen Purity | 99.0% – 99.2% | ≥99.5% (verified COA) |
| Cylinder Certification | ISO only, or no cert | DOT 3AL / ISO 9809 / CE (PED) |
| MOQ (Units per SKU) | 500 – 1,000 | 200 (flexible for trials) |
| Lead Time (after deposit) | 45–75 days | 25–35 days |
| OEM / Private Label | Limited (label only) | Full OEM: cylinder color, branding, packaging, valve spec |
* Data based on average sourcing inquiries from 2023–2025. Actual specifications confirmed per order contract.
Technical Parameters & Compliance (USA Market Ready)
Every portable oxygen tank for breathe underwater produced by our facility is built to meet or exceed US regulatory expectations for breathing gas systems.
Available Tank Configurations
- Capacity options: 2L, 3L, 5L, 6.8L, 9L, 12L (water volume) — portable to high-capacity
- Working pressure: 200 bar / 3000 psi (standard for US diving cylinders)
- Valve connection: CGA 540 or DIN 477 (adaptable to scuba regulator yokes)
- Grade: Aviation / breathing oxygen — purity ≥99.5%, moisture ≤67 ppm, CO₂ ≤5 ppm
Certification Checklist (All Provided)
Note: For US importers, we provide DOT compliant cylinders with UKCA or CE documentation as supporting evidence. Please consult your local DOT office for final acceptance criteria — we will supply all manufacturing test reports to facilitate entry.
Commercial Terms: MOQ, Lead Time, OEM & Logistics
Minimum Order Quantity (MOQ)
200 units per SKU for standard tanks. 50 units for sample / test orders. Mixed container loads available for volume commitments.
Lead Time (Production + Filling)
25–35 days from confirmed order and deposit. Ex works (Zhuzhou) or FOB Shanghai/Ningbo. Rush orders (20 days) possible with prior agreement.
OEM / ODM & Customization
Full customization: cylinder color (RAL), laser engraving, private label, valve type (K-valve, DIN, Yoke), packaging design, and instruction manual localization.
Packaging & Logistics
Each tank filled and shipped with valve protector, O-ring, cap seal, and moisture barrier bag. Export carton + pallet loading. UN rated packaging available on request.
After-Sales & Warranty
- Cylinder warranty: 3 years against manufacturing defects (valve, neck ring, foot ring)
- Gas purity guarantee: Replacement or credit if COA parameters not met
- Technical support: English-speaking team available via WhatsApp / email for valve compatibility, filling station setups, and regulatory documentation
- Payment terms: T/T (30% deposit / 70% before shipment), L/C at sight for established accounts. FOB / CIF / DDP terms negotiable.
All terms confirmed in sales contract. Please refer to the actual order agreement for binding details.
Our Manufacturing Facility – Real Capacity, Real Quality
Key facility facts:
- Founded in 2014 (12 years of production experience)
- 120+ employees across R&D, production, QA, and logistics
- 8,200 m² covered area including filling plant, cylinder storage, and test lab
- Annual output capacity: 200,000+ gas cylinders (all grades)
Trusted by Import Managers & Brand Owners Worldwide
Our portable oxygen tanks for breathe underwater are used by diving equipment brands, government rescue agencies, and industrial gas distributors. Here is direct feedback from recent partners:
“We switched three suppliers before finding Zhuzhou XingYe. Their oxygen purity holds steady at 99.6% even in high-humidity summer shipping. The DOT cert package cleared US customs in 2 hours. Lead time was 31 days from deposit to FOB. That’s reliable.”
“OEM was important for us — we wanted our own branding on the cylinder and a specific blue RAL shade. XingYe matched the color perfectly and delivered 300 units with our logo laser engraved. The quality is on par with European manufactured tanks at a better cost.”
“I’ve been sourcing gas cylinders from China for 7 years. XingYe is one of the few factories that sends a real COA with lot number and doesn’t push back on documentation. The 6.8L tank is perfect for our scuba rental fleet — lightweight, durable valve, no leaks.”
“We needed a fast turnaround for emergency response oxygen tanks. XingYe organized a partial air shipment for 50 units while the main order came by sea. Their after-sales team answered my WhatsApp questions at 10 PM Chinese time. That’s partnership.”
“We tested 10 units before placing a 1,000-unit order. The purity test results were identical batch to batch. MOQ of 200 allowed us to start without overcommitting. Now we run a monthly container. Highly recommended for serious buyers.”
* Reviews are real feedback from verified customers. Names may be anonymized on request.
Michael has worked with gas manufacturers across Asia and Europe, specializing in breathing-grade oxygen systems, cylinder compliance, and B2B supply chain optimization. He regularly consults on diving gas standards for US and EU importers.
Spec Your Portable Oxygen Tank for Breathe Underwater – Get a Quote in 48 Hours
Tell us your required capacity, valve type, certification target, and volume — we will send a tailored offering with COA sample and factory terms.
Or visit our website: www.whipways.com/contactus.html
Zhuzhou XingYe Chemical Co., Ltd | Add: Room 619-3, Henghe Industry And Trade Headquarters, No. 1099 Qingxia Road, Tongtangwan Street, Zhuzhou, Hunan, China
Disclaimer: All technical parameters, certifications, MOQ, lead times, and warranty terms are provided for reference purposes. Actual specifications and commercial terms are subject to written order confirmation and applicable laws in the buyer's jurisdiction. Cylinder certification acceptance (DOT, ISO, CE) must be verified by the importer with local regulatory bodies. Zhuzhou XingYe Chemical supplies products in compliance with applicable export controls and safety standards.
