304 Stainless Steel Female Thread Union Pipe Fitting Threaded Coupling Connector For Water Gas Oil Plumbing Industrial Pipeline
- Premium 304 Stainless Steel Material Marked 304 stamp on body, 18Cr-8Ni alloy, outstanding rust & corrosion resistance, anti-oxidation, long service life for indoor & outdoor piping.
- Double Female Thread (FF Union) Design Two internal female thread ends, easy to connect two male threaded pipes; detachable union nut design for quick pipeline disassembly & maintenance without cutting tubes.
- Precision Deep Thread Machining Uniform, smooth inner threads, tight matching with standard NPT/BSP pipes, no slip thread, equipped with sealed gasket to fully prevent liquid/gas leakage under normal working pressure.
- Investment Casting Integrated Forming One-piece casting structure, thickened hexagonal body, high pressure resistance, not easy to crack or deform under water, gas, oil medium transmission.
- Wide Compatibility & Multi-size Options Full size range from 1/8″ to 4″, support NPT / BSPP / BSPT thread standards; suitable for plumbing, heating, industrial water, natural gas, light chemical pipelines.
- Factory Direct OEM & ODM Service Custom logo stamping, customized thread standards, special size machining available; strict raw material inspection & finished product pressure test before delivery.
- Stable Export Quality & Complete Certifications Pass raw material composition test & hydraulic pressure leakage test; professional export packaging, stable supply capacity for bulk orders, rich experience serving global plumbing wholesalers.
- Quality assured: strict inspection, stable export
- Non-standard custom: made to drawings, flexible
- Fast delivery: in stock, reliable lead time
- Professional service: 20+ years, full support











