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Product Description
The straight tee is a three-way fitting used to create a perpendicular connection to a pipe. Its name is derived from its resemblance to the letter "T." The straight cross, on the other hand, is a four-way fitting that makes two perpendicular connections to the pipe, resembling a crossroads. The pipes connecting to the main run are referred to as branches, while the main run itself is called the header. The term straight indicates that all three outlets (for the tee) or four outlets (for the cross) are of the same pipe size. We provide different types of butt-weld pipe fittings, including: Elbow,Tee,Cross,Reducer, Coupling,Cap,Stub end
| Size： | 1/2″ – 48″ | |||||||
| Connect Type: | Butt Welded | |||||||
| Certification: | ISO, CE | |||||||
| Standard: | ANSI B16.9、 ANSI B16.28、 DIN2605/ 2615/ 2616/ 2617、 JIS B2311、 GOST 17375/ 17376/ 17377/ 17378. | |||||||
| Wall Thickness: | SCH10, SCH20, SCH30, STD, SCH40, SCH60, XS, SCH80, SCH100, SCH120, SCH140, SCH160, XXS, JIS, DIN | |||||||
| Surface Treatment: | Black paint, light oil, hot dip Galvanized. | |||||||
| Material:Stainless steel: | 304/304L, 316/316L；Carbon steel: ASTM A234 WPB / 20#/ P265GH/ST37.2 | |||||||
| Industry applications: oil and gas, chemical industry, food processing, pharmaceuticals, construction, energy, etc. Standard drawing of Straight Tee & Cross.
*NPS: Nominal Pipe Size; O.D: Outside Diameter at Bevel; C: Center-to-End, Run; M: Center-to-End, Outlet. Manufacturing Process of Stainless Steel Butt-Welding Fittings 1、Material Selection: Choose appropriate stainless steel grades like 304, 316, or 316L, based on corrosion resistance and temperature requirements. 2、Cutting and Shaping: Cut the pipes or sheets to the required lengths and shapes. For fittings like elbows and tees, use molding or bending processes. 3、Preparation: Clean the surfaces of fittings and pipes to remove oil, rust, and other contaminants. Ensure precise alignment before welding. 4、Welding: Use TIG (Tungsten Inert Gas) or MIG (Metal Inert Gas) welding methods. Set the right welding parameters (temperature, speed, current) to ensure strong, high-quality welds. 5、Post-Welding Treatment: Remove slag and oxide from the weld area, then perform heat treatment or annealing to relieve stress and improve the strength of the weld. 6、Quality Control: Inspect the welds visually and with non-destructive testing (NDT) methods like X-rays or ultrasonic tests to ensure no internal defects. 7、Packaging and Shipping: Once approved, package the fittings carefully to avoid damage during transportation. Installation Precautions for Stainless Steel Butt-Welding Fittings 1、Proper Alignment: Ensure fittings and pipes are correctly aligned before welding to avoid misalignment during installation. 2、Clean Environment: Perform welding in a clean, dry environment, free from contaminants like dust or moisture, to ensure high-quality welds. 3、Welding Temperature Control: Avoid overheating the material during welding to prevent issues like grain growth or weakening of the stainless steel. 4、Welding Sequence: Follow a proper welding sequence to minimize stress and distortion. Start from the ends and move toward the center. 5、Post-Welding Inspection: After welding, check the welds for defects like cracks, voids, or undercuts. Use non-destructive testing methods if necessary. 6、Pipe Support: Ensure the pipes are properly supported to prevent sagging or deformation during installation. Use clamps or brackets for secure mounting. 7、Pressure Testing: After installation, conduct pressure tests to ensure the system’s integrity and leak-free performance. 8、Corrosion Prevention: Periodically inspect and clean the welds to avoid corrosion, and apply protective coatings if exposed to harsh environments. | ||||||||
