Slip-on flange
A loose‑flange assembly consists of two components: a loose flange ring and a short stub end with a rolled edge. The flange ring can rotate freely at the pipe end, significantly simplifying the alignment of bolt holes during equipment installation and removal.
This flange is widely suitable for piping systems that require frequent maintenance, repeated disassembly and reassembly, and on-site positional adjustments.
Processing technology
Forging, hot forging, CNC precision machining
Specification Range
Nominal diameter DN15–DN3000
Pressure rating
150-pound class to 2,500-pound class
Material
Carbon steel, stainless steel, alloy steel, low-temperature steel, and other special materials
Implementation Standard
ASME B16.5, ASME B16.47, National Standard GB/T, Chemical Industry Standard HG/T, European Union EN Standard
Quality Inspection
Ultrasonic nondestructive testing (UT), magnetic particle nondestructive testing (MT), penetrant nondestructive testing (PT), radiographic nondestructive testing (RT), hydrostatic testing, chemical composition analysis, and mechanical property testing.
Application areas
Suitable for petrochemical, natural gas, power engineering, water supply and drainage, shipbuilding, and various industrial piping projects.
Customized Services
Customization is available to meet customer‑specific drawings and operating conditions, including non‑standard dimensions, special pressure ratings, specialized materials, and unique sealing‑face configurations. We also offer tailored anti‑corrosion coatings, product marking and engraving, custom packaging, and third‑party testing services.
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Slip-on flange
A loose‑flange assembly consists of two components: a loose flange ring and a short stub end with a rolled edge. The flange ring can rotate freely at the pipe end, significantly simplifying the alignment of bolt holes during equipment installation and removal.
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