--- product_id: 29212918 title: "40 cu ft Steel Oxygen Cylinder - CGA540 Valve - DOT Approved" brand: "teayir" price: "S$620" currency: SGD in_stock: true reviews_count: 8 url: https://www.desertcart.sg/products/29212918-40-cu-ft-steel-oxygen-cylinder-cga540-valve-dot-approved store_origin: SG region: Singapore --- # CGA540 valve - industry-standard oxygen connection Heavy-duty DOT-approved steel with green finish 40 cu ft capacity for extended use 40 cu ft Steel Oxygen Cylinder - CGA540 Valve - DOT Approved **Brand:** teayir **Price:** S$620 **Availability:** βœ… In Stock ## Summary > πŸ› οΈ Power your precision with the pro-grade oxygen cylinder everyone’s talking about! ## Quick Answers - **What is this?** 40 cu ft Steel Oxygen Cylinder - CGA540 Valve - DOT Approved by teayir - **How much does it cost?** S$620 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/29212918-40-cu-ft-steel-oxygen-cylinder-cga540-valve-dot-approved) ## Best For - teayir enthusiasts ## Why This Product - Trusted teayir brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Rugged & Reliable:** Thick-walled steel construction with DOT approval for maximum safety and durability on any job site. - β€’ **Portable Powerhouse:** Compact 7" diameter and 24 lb weight make it easy to transport without sacrificing capacity. - β€’ **Versatile Application:** Ideal for oxy-acetylene welding, metal cutting, industrial tasks, and medical oxygen needs (prescription required). - β€’ **Extended Oxygen Supply:** 40 cubic feet capacity ensures longer, uninterrupted welding or medical use. - β€’ **Precision Oxygen Delivery:** Pre-installed CGA540 valve guarantees safe, standardized oxygen flow with compatible equipment. ## Overview This 40 cu ft steel oxygen cylinder features a DOT-approved heavy-duty steel body and a pre-installed CGA540 valve, ensuring safe and standardized oxygen delivery. Designed for professional oxy-acetylene welding, metal cutting, and medical use, it offers a portable 24 lb design with a compact 7" diameter. Ships empty for safe transport and requires oxygen-compatible regulators and fittings. ## Description New 40 cu ft steel oxygen cylinder with pre-installed CGA540 valve. Perfect for oxy-acetylene welding and cutting, torch work, metal fabrication, industrial processes, and medical use. Oxygen is widely used in welding applications, typically added in small amounts (2-5%) to argon to enhance arc stability and improve metal wetting. Portable at 24 lbs with 7" diameter for mobile welding and job site work. The CGA540 valve is designed specifically for oxygen service and must be used only with oxygen-compatible regulators and equipment. Heavy-duty steel construction with green painted finish, DOT approved. Ships empty per shipping regulations - fill at certified compressed gas supplier. Medical oxygen requires doctor's prescription. Never use with oil or grease. Refillable for long-term oxygen delivery. ## Features - 40 CU FT OXYGEN CYLINDER - Mid-size steel oxygen tank for oxy-acetylene welding, metal cutting, medical use, and industrial applications. 2015 PSI service pressure. Portable design with 7" diameter x 22.3" height, 24 lb tare weight. Letter designation: B. Green painted finish standard for oxygen cylinders - NEW CGA540 OXYGEN VALVE - Pre-installed CGA540 valve designed specifically for oxygen service. Standard 3/4" NGT threading. Use ONLY with oxygen-compatible regulators and equipment. CGA540 is the industry-standard connection for oxygen cylinders to ensure safe oxygen delivery - HEAVY-DUTY STEEL CONSTRUCTION - Durable thick-walled steel with green painted finish. DOT approved for safe oxygen transport and storage. Test pressure 3360 PSI. Professional-grade quality built for demanding industrial and welding environments - OXY-FUEL WELDING & CUTTING - Perfect for oxy-acetylene welding and cutting, torch work, metal fabrication, industrial processes, and medical oxygen (prescription required). Oxygen enhances arc stability and improves metal wetting in welding gas mixes when added in small amounts to argon - SHIPS EMPTY & REQUIRES OXYGEN-SAFE EQUIPMENT - Arrives unfilled per shipping regulations. Fill at certified compressed gas supplier. Use ONLY oxygen-compatible regulators and fittings. Never use with oil or grease. Medical oxygen requires doctor's prescription. Refillable for cost-effective operation ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B01E2T4V2W | | Best Sellers Rank | #904,709 in Automotive (See Top 100 in Automotive) #876 in TIG Welding Equipment | | Brand Name | TEAYIR | | Connector Type | Threaded | | Customer Reviews | 4.4 4.4 out of 5 stars (90) 4.4 out of 5 stars | | Exterior Finish | Painted | | Inlet Connection Size | 1 inches | | Inlet Connection Type | Threaded | | Item Dimensions | 7 x 7 x 17.25 inches | | Item Weight | 30 pounds | | Manufacturer | Varies | | Manufacturer Part Number | 40STEEL-540 | | Material Type | Steel | | Maximum Pressure | 2015 psi | | Model Number | 40STEEL-540 | | Number Of Items | 1 | | Number Of Packs | 1 | | Number Of Pieces | 1 | | Number Of Ports | 2 | | Outlet Connection Size | 0.75 inches | | Outlet Connection Type | NGT | | Set Name | 40 cubic feet | | Size | 7 inches x 7 inches x 17.25 inches | | Specification Met | DOT | | Thread Size | 1 inches | | Thread Type | NPT | | Unit Count | 1 Count | | Upc | 633131433777 | | Valve Type | Globe Valve | ## Product Details - **Brand:** TEAYIR - **Exterior Finish:** Painted - **Inlet Connection Size:** 1 inches - **Inlet Connection Type:** Threaded - **Item dimensions L x W x H:** 7 x 7 x 17.25 inches - **Material:** Steel - **Maximum Operating Pressure:** 2015 psi - **Number of Ports:** 2 - **Outlet Connection Size:** 0.75 inches - **Outlet Connection Type:** NGT ## Images ![40 cu ft Steel Oxygen Cylinder - CGA540 Valve - DOT Approved - Image 1](https://m.media-amazon.com/images/I/41WzyFuYO-L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great tank *by on Reviewed in the United States May 14, 2024* Very nice quality tank ### ⭐⭐⭐⭐⭐ What They Say is Right On The Money *by on Reviewed in the United States February 4, 2020* The best aspect of this sale was the little green slip in the box, with all sorts of telephone numbers to call and websites to access if the Buyer encounters difficulty. In my case I've tried two or three times to get outside vendor oxygen cylinders filled and have been told "no way" by my gas vendor.So I needed to get a 40-pounder and this Seller specifically says "DOT," etc., in the ad word.I took it in to the gas vendor and he did his best to disqualify me for the fourth time. (Please notemy gas vendor COULD NOT come up with a new cylinder even though their store is coast-to-coast.)But, try as he might, he could not refuse to fill this time, because this tank had ALL the requisitestamped legends, dates, approvals, and whatever is needed to qualify a tank. PERIOD.When this seller says they will support the sale, they mean they will step up to the plate for their customers. ### ⭐⭐⭐⭐⭐ Heavy duty yet light weight for medium jobs *by on Reviewed in the United States September 4, 2019* This is excellent quality, brand new condition and best of all it is heavy duty yet light weight, so I can weld all I want in my smaller garage for long periods of time, which is just what I needed.I'll be purchasing again for sure. ## Frequently Bought Together - New 40 cu ft Steel Oxygen Cylinder Tank with CGA540 Valve - Portable Sauna, Sauna Box for Home, Personal Steam Sauna, Foldable Sauna with 3L, up to 90min,800W Steam Sauna Generator with Safety Protection, Remote Control & Portable Chair, UL Certified --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sg/products/29212918-40-cu-ft-steel-oxygen-cylinder-cga540-valve-dot-approved](https://www.desertcart.sg/products/29212918-40-cu-ft-steel-oxygen-cylinder-cga540-valve-dot-approved) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-10-13*