Stainless Steel Threaded Fittings

Grande-Tek threaded fittings include casting threaded fittings and pipe nipples. Both of them are made of stainless steel which has high quality to resist acid and alkali to prevent corrosion. They have threads on one end or both ends which is simple and fast to install, so they are popular and common used.

Stainless steel can be used more longer and can protect the environment compared to the traditional carbon steel, aluminum, copper products, so they are used widely, mostly used through pipelines in plumbing, construction, water recycle, pharmacy, food industry, gas, oil and petrochemical industries.

Pipe Nipples

Pipe fittings are a short seam or seamless pipes with internal or external thread. They include barrel nipples, welding nipples, close nipples and couplings or sockets. Grande-Tek manufacture pipe fittings from 1/8” to 6” as to international standard.They are mostly machined in parallel or taper thread as to different working environment in plumbing engineering systems, water treatment systems, alcohol production, food industry, gas, oil and petrochemical industries.


  • Pressure: Class150#

  • Size: 1/8″-6″(DN6-DN150)

  • Material: ASTM A312/TP304&TP316L

  • Standard: Nipple SCH20&SCH40&SCH80, Coupling/Socket ISO4144&DIN2986&SP114

  • Thread: ISO7-1&ISO228-1&DIN2999&BSPP/BSPT&NPT

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