Butt Weld Union
Product Details
Zhejiang Leadtek Fluid Technology Co., Ltd. is one of the most experienced manufacturers and suppliers of butt weld union in China. Please feel free to buy customized butt weld union at competitive price from our factory. Also, free sample is available.
Professional Manufacturer of weld on union
Item No:
The Butt Weld Union is a precision stainless steel pipe fitting designed to create a permanent, weld-on connection between two sections of pipe. Two body halves are welded directly to the pipe ends, then joined through a union nut and PTFE seal, allowing the line to be opened for maintenance without cutting or re-welding the pipe. This makes the Butt Weld Pipe Union a practical choice for stainless steel piping systems that require both a leak-tight weld joint and the option for future disassembly.
Specification
| No. | Parts | Material | |
| 1 | Male | 304 / 316 | |
| 2 | Gasket | PTFE/EPDM/Concial | |
| 3 | Liner | 304 / 316 | |
| 4 | Nut | 304 / 316 |
| Size T1 | DN | ØD | L | m | SW |
| 1/8" | 6 | 10.5 | 30 | 13 | 26 |
| 1/4" | 8 | 13.8 | 33 | 14 | 29 |
| 3/8" | 10 | 17.3 | 36 | 14.5 | 33 |
| 1/2" | 15 | 21.7 | 39.5 | 16.5 | 38 |
| 3/4" | 20 | 27.2 | 42.5 | 17.5 | 46 |
| 1" | 25 | 34 | 46.5 | 18.5 | 54 |
| 1 1/4" | 32 | 42.7 | 53 | 21 | 64 |
| 1 1/2" | 40 | 48.6 | 57 | 23 | 71 |
| 2" | 50 | 60.5 | 63 | 25 | 85 |
| 2 1/2" | 65 | 76.1 | 71 | 27 | 107 |
| 3" | 80 | 88.9 | 79 | 29 | 120 |
| 4" | 100 | 114.3 | 89 | 31 | 146 |
Product Features
Permanent Weld Connection with Disassembly Option
Both halves of the Butt Weld Union are welded directly to the pipe, eliminating threaded or flanged joints at the pipe ends. The union coupling itself can still be opened, giving maintenance teams access to the line without cutting the pipe.
Flat Seal, Leak-Resistant Design
The BW-BW flat seal configuration with PTFE, EPDM, or Concical gasket options resists vibration and pressure fluctuation, helping the seal stay tight under continuous operating conditions.
Material Options for Different Media
Available in 304 and 316 stainless steel to match the corrosion resistance requirements of water, chemical, food-grade, and industrial fluid systems.
Octagon and Decagon Nut Designs
Sizes 1/8" to 2" use an octagon nut profile, while sizes 2-1/2" to 4" use a decagon profile, both designed for secure wrench engagement during installation and maintenance.
Hose fittings are commonly used for flexible tubing, but for rigid stainless steel pipelines that need both a welded joint and a serviceable connection point, a Butt Weld Union is the standard solution.
Packaging & Shipping
Each unit is packed to protect against moisture, dust, and transit damage. Standard packaging options include individual poly bags with carton boxes, suitable for both small sample orders and bulk shipments. For larger orders, products are packed on pallets or in wooden crates to ensure stability during international freight.
Packaging can be adjusted according to order quantity, shipping method (sea, air, or express), and customer requirements. For specific packaging details or custom labeling needs, please contact our sales team when placing an order.
If you can confirm actual packaging methods used (even roughly), I can tighten this with real specifics instead of these general statements.
Products Description
Zhejiang Leadtek Fluid Technology Co., Ltd. is a manufacturer of stainless steel valves and pipe fittings based in Quzhou, Zhejiang, China, operating a 37,000 sq.m production base that integrates precision casting, CNC machining, assembly, and testing. The product is produced on this same production line, with each batch passing through multi-stage inspection and 100% air pressure leak testing before shipment.
LEADTEK holds ISO 9001 and ISO 14001 certifications along with CE and other international approvals, and maintains an in-house import/export team to support international orders. For buyers with project-specific requirements, custom sizes, materials, and seal types for the Butt Weld Pipe Union can be arranged through direct consultation with our engineering and sales team.
Products Description
Q: How should the Butt Weld Union be stored before installation?
A: Store in a dry, indoor area away from direct contact with the ground or moisture. Keep the original packaging intact until installation to protect the sealing surfaces and threads from dust and corrosion during storage.
Q: Can it be used in food-grade or sanitary applications?
A: The 316 stainless steel version with an EPDM or PTFE gasket can be suitable for food and beverage piping, depending on the specific hygiene standards required by your project. Please share your application details so we can confirm the right material and seal combination.
Q: What is the minimum order quantity?
A: MOQ depends on the size and material required. Please contact our sales team with your target size, material, and quantity so we can provide accurate MOQ and pricing information.
Q: Can it be marked with a customer's logo or part number?
A: Custom marking such as a logo, part number, or batch code can be arranged for OEM orders, depending on the marking method and minimum quantity. Please confirm your requirements with our sales team for feasibility and lead time.
Q: Does LEADTEK provide a warranty for this product?
A: Please contact our sales team to discuss warranty terms, as these may vary depending on the order specification and application.
Hot Tags: butt weld union, China butt weld union manufacturers, suppliers, factory, tee 45, square tube end plugs, unequal tee pipe fitting, stainless steel bulkhead fittings, hex cap, Stainless Steel 45 Degree Elbow
Previous
90 Degree Union ElbowNext
Union Male MaleSend Inquiry
