Slip-on flat welding flange

Product Introduction

Slip-on flat‑weld flanges are among the most widely used pipe‑fitting components in industrial piping systems. The product features a short neck and an internal shoulder, allowing the pipe to be easily slipped over the flange for quick positioning and assembly.
Compared with plate-type flat‑weld flanges, this product offers superior structural rigidity, enhanced pressure‑bearing capacity, and more reliable sealing performance. Its double‑sided welding process effectively reduces stress concentrations, thereby improving the operational safety of the entire piping system.
Processing technology: Forging, hot forging, CNC precision machining
Specifications and dimensions: 1/2 inch to 48 inches / DN15 to DN1200
Pressure rating: 150#～2500#
Material: ASTM A105N carbon steel, A182 F304/L and F316/L stainless steels, cryogenic steels, and alloy steels; special materials compliant with NACE standards are also available.
Implementation Standard: ASME B16.5, ASME B16.47, National Standard GB/T, Chemical Industry Standard HG/T, European Standard EN 1092, and Petrochemical SH/T series standards
Test items: Ultrasonic, magnetic particle, penetrant, and radiographic nondestructive testing, hydrostatic pressure testing, as well as chemical composition and mechanical property analysis—providing end-to-end quality control.
Scope of application: Widely used in petrochemicals, natural gas transmission, power plants, water treatment, shipbuilding, and various general‑purpose industrial piping projects.
Customized Services
We can customize non-standard dimensions, special pressure ratings, specialized materials, and various sealing face configurations according to customer drawings. Additionally, we offer tailored services such as custom painting, hot-dip galvanizing, product marking and engraving, exclusive packaging, and third-party testing support.