GB/T9113 Type13 F304 PN16 RF Threaded Flange is hot-forged integral screwed pipe flange, the most cost-effective weld-free piping connector for low-medium pressure corrosive pipelines. Different from welding-type WN/slip-on flange, it adopts precision internal BSPT tapered thread structure, no on-site welding required, solving construction pain points of fire prohibition, narrow space, pipeline frequent disassembly. It owns 5 exclusive core advantages: full weld-free assembly, high-precision leak-proof thread, one-piece forged high rigidity, easy repeated maintenance, universal gasket sealing.
Made of virgin ASTM A182 F304 austenitic stainless steel, no recycled scrap doping, passed full spectral composition inspection. Natural chromium passive film provides stable anti-rust, weak acid and humid environment corrosion resistance, service life over 14 years for water treatment, workshop circulating water and municipal indoor piping. Standard BSPT British tapered thread features self-locking compression performance, tighter fit during screwing, effectively prevent medium backflow and thread loosening caused by pipeline micro-vibration.
CNC one-time integrated thread turning, thread tooth uniform, tooth depth standard, match national standard male threaded pipe perfectly without thread modification. Ra3.2 fine turned RF raised sealing face, compatible with rubber, PTFE common gaskets, stable sealing for water and neutral medium. Whole body acid pickling passivation enhances surface anti-corrosion. Factory triple inspection: thread tolerance test, hydraulic tightness test, appearance flaw inspection. DN15-DN600 in stock, PN16 1.6MPa rated pressure. Support custom thread depth, logo engraving, non-standard hole pitch. 15-month factory warranty, complete MTC material certificate, neutral export packing.
Core Product Advantages:1.100% weld-free, fire-free safe installation;2.BSPT self-locking thread anti-loosening;3.Integral forged crack-free body;4.Repeated disassembly no thread damage;5.Low on-site labor cost
Core Spec: Standard: GB/T9113; Pressure: PN16; Face: RF; Thread: BSPT; Material: F304 Stainless Steel; Process: Die Forged + CNC Threading; Size: DN15-DN600
FAQ: Q: Threaded flange vs welded flange which is better?
A: Threaded flange is better for fire-ban area, frequent maintenance and short-term pipeline project.
