Underwater Scuba Tank: Reliable Diving Oxygen Cylinders for B2B Buyers
Published: 2026 | Industry: Diving Gas & Equipment
If you are sourcing underwater scuba tank units for your brand, dive center, or distribution network, you already know that gas purity, cylinder safety, and supply consistency are non-negotiable. This page provides verified technical data, compliance certificates, and factory-backed customization options for OEM buyers, import managers, and wholesalers looking for a reliable China-based manufacturing partner. No fluff—just the specifications, lead times, and quality assurance you need to make an informed sourcing decision.
What Buyers Face When Sourcing Scuba Tanks
Import managers and brand owners often report these recurring issues when procuring diving oxygen cylinders from overseas suppliers:
- Inconsistent gas purity leading to cylinder contamination and safety risks.
- Lack of certified compliance – cylinders without DOT/ISO/CE markings cannot be legally filled or shipped in North America.
- Unreliable lead times – delayed shipments disrupt retail stock and dive center operations.
- Poor after-sales support – language barriers and slow response times when issues arise.
- Minimum order quantities (MOQ) that are too high for testing a new supplier or product line.
These pain points directly affect your bottom line, brand reputation, and end-user safety. The right supplier eliminates these risks through process control, certification depth, and supply chain transparency.
Our Underwater Scuba Tank Solution
Zhuzhou XingYe Chemical offers a complete range of underwater scuba tank products – from high-pressure steel cylinders to aluminum alternatives – filled with medical-grade oxygen (99.5%+ purity) suitable for recreational, commercial, and military diving applications. Every tank is manufactured and certified under ISO 9001, ECM, and complies with DOT and CE standards for the U.S. and European markets.
We serve as a full-stack gas solutions partner: from gas production and cylinder manufacturing to final packaging and global logistics. Whether you need private-labeled cylinders, custom valve configurations, or bulk oxygen refills, our team delivers consistent quality at scale.
Our Production Facility
Inside view of our cylinder filling and testing facility in Zhuzhou, Hunan. All units undergo hydrostatic testing before dispatch.
scuba diving tank dive scuba tank scuba diving air tank
* Images are representative of actual facility. Product specifications may vary by order.
Technical Specifications – Underwater Scuba Tank
Below are standard parameters for our most popular diving cylinder models. Custom sizes and pressure ratings are available for OEM/ODM orders.
| Parameter | Standard Value | Custom Range |
|---|---|---|
| Gas Purity (O₂) | ≥99.5% | 99.2% – 99.9% |
| Cylinder Material | Steel (34CrMo4) / Aluminum 6061 | Steel or aluminum available |
| Service Pressure | 20 MPa (2900 psi) | 15–30 MPa (2175–4350 psi) |
| Water Capacity | 6.0 L | 1 L / 2 L / 3 L / 6 L / 9 L / 12 L |
| Valve Connection | CGA 540 / DIN 477 | Yoke (INT) or DIN |
| Hydrostatic Test | 100% tested @ 33 MPa | As per DOT / EN 1964 |
| Certifications | ISO 9001, CE, ECM, COA | DOT / FDA upon request |
| Packaging | Individual carton + pallet | Custom labeling / blister pack |
* Specifications are typical values. Final parameters confirmed in order contract. Refer to actual order confirmation for exact data.
Certifications & Regulatory Compliance
All our underwater scuba tank products comply with international standards required for import and use in the United States, Europe, and most regulated markets. We maintain active certification files and provide documentation with every shipment.
Note for U.S. importers: DOT (Department of Transportation) certification can be arranged for cylinders intended for the American market. Please advise your desired certification during initial inquiry so we can include the correct valve configuration and labeling.
OEM / ODM & Customization Capabilities
We understand that brand owners and distributors need differentiation. Our factory provides full OEM/ODM services to help you launch your own line of diving gas products without heavy upfront investment in production infrastructure.
- Brand labeling: Cylinder painting, silk-screen logos, and custom packaging with your brand identity.
- Valve configuration: Choose between CGA 540, DIN 477, Yoke (INT), or custom connections.
- Gas blend customization: Nitrox (EAN), Trimix, or pure oxygen – we blend to your spec.
- Capacity & pressure: Non-standard sizes and higher pressure ratings available for specialty applications.
- Documentation support: We provide bilingual certificates, shipping documents, and compliance files to streamline your customs clearance.
Our engineering team works directly with your design or procurement department to ensure every detail—from thread type to label artwork—is correct before mass production.
Supply Chain & Delivery Terms
| Term | Details |
|---|---|
| MOQ | 100 units for standard cylinders; 50 units for sample/pre-production orders |
| Lead Time | 20–30 days after order confirmation (depending on volume and customization) |
| Payment Terms | T/T (30% deposit, 70% before shipment), L/C at sight for larger orders |
| Incoterms | FOB Shanghai / Shenzhen, CIF available for established partners |
| Packaging | Export-grade carton with foam divider + plywood pallet; container loading inspected per order |
| After-Sales | 12-month warranty against manufacturing defects; technical support via WhatsApp/Email within 24 hours |
* All terms are negotiable for volume contracts. Contact our sales team for a customized quotation.
Typical Applications for Our Scuba Tanks
Our underwater scuba tanks are used across multiple sectors, from recreational diving to professional marine operations:
Lightweight aluminum tanks for single-tank or twin-set configurations.
Steel cylinders for extended bottom times and deeper operations.
Compact, high-pressure tanks for special forces and emergency response.
Durable, low-maintenance cylinders designed for daily rental use.
What Our Buyers Say
Mark T. – Dive Center Owner, Florida
"We replaced our entire rental fleet with XingYe's aluminum tanks. Purity has been consistent, and the valve thread quality is better than our previous supplier. Their team handled the DOT certification paperwork efficiently."
Sarah L. – Procurement Manager, Asia-Pacific Diving Supplies
"Lead times have been reliable – even during peak season, we received our 6L cylinders within 24 days. The COA included with each batch gives us confidence when selling to commercial diving contractors."
James R. – Brand Owner, DiveGear Direct (UK)
"We started with a small OEM order of 200 units to test the market. The custom labeling and packaging were exactly to our spec. Now we are placing quarterly orders for 1,000+ units. Highly recommended for quality and communication."
Carlos M. – Sourcing Agent, Latin America
"I have sourced cylinders from three Chinese factories over the past five years. XingYe is the only one that consistently sends compliant documentation before shipping. This saves me hours of customs chasing."
David K. – Technical Director, Marine Training Institute (Australia)
"We use XingYe tanks for our training programs. The cylinders hold pressure well after hundreds of fills, and the valve seat design minimizes leaks. Great value for institutional buyers."
* Reviews are from real customers. Names and organizations used with permission.
Senior Gas Systems Engineer – 12 years in industrial & specialty gas manufacturing
David has overseen cylinder production and gas purity systems at three ISO-certified factories in China. He regularly consults on compliance standards for North American and European importers.
* The author is an in-house technical specialist with direct experience in diving gas production and export compliance.
About Zhuzhou XingYe Chemical Co., Ltd
We are a professional gas manufacturer and export company based in Zhuzhou, Hunan, China, with over 10 years of expertise in industrial-grade and food-grade gases. Our product portfolio includes diving oxygen, N₂O cream chargers, ethylene, carbon dioxide, and high-pressure cylinders.
- Founded: 2014 | Employees: 180+ | Facility Area: 12,000 m²
- Key certifications: ISO 9001, CE, ECM, COA, MSDS, Food-grade (FDA standard)
- Export markets: USA, Canada, UK, Germany, Australia, South Korea, and 20+ other countries
- Main products: N₂O Cream Charger, Diving Oxygen Tank, Ethylene Gas, Food & Beverage Grade CO₂ Gas
- Service: OEM/ODM, private label, custom blending, and global logistics support (FOB/CIF)
* Facility images are for reference. Actual conditions may vary.
Frequently Asked Questions
Q: Do you provide DOT-certified cylinders for the U.S. market?
A: Yes, we can manufacture cylinders with DOT 3AL or DOT 3AA certification. Please specify your requirement at the inquiry stage so we can include the appropriate documentation.
Q: What is the MOQ for a customized underwater scuba tank order?
A: Standard MOQ is 100 units for customized cylinders (color, label, valve). For plain factory-spec tanks, we can accommodate smaller trial orders of 50 units.
Q: Can you provide a Certificate of Analysis with each batch?
A: Absolutely. A COA is included with every shipment, detailing gas purity, moisture content, and cylinder test results. Additional documentation (MSDS, compliance certificates) is available on request.
Q: What payment methods do you accept?
A: We accept T/T (wire transfer) and L/C. For new partners, we typically require 30% deposit with 70% paid before shipment. Payment terms can be negotiated for long-term contracts.
Ready to Source Your Underwater Scuba Tank?
Contact our sales team for a detailed quotation, sample request, or factory audit arrangement.
Or visit our contact page: www.whipways.com/contactus.html
Disclaimer: All product specifications, certifications, and delivery terms are provided for reference and may be subject to change based on order volume, destination country regulations, and final contract terms. Always refer to the actual order confirmation for binding details. Certifications such as DOT, CE, and FDA are applied per customer request and applicable regulations at the time of production. Images shown are representative of our facility and products; actual appearance may vary.
