Threaded Fittings

Stainless Steel Threaded Fittings

GD standard pattern CLASS 150 stainless steel threaded fittings are manufactured to the ISO4144 and SP114 and custom design. All SS fittings are inspected by our professional QC personnel according to the applicable standards and specifications.

Stainless steel offers excellent protection against corrosion and rust ,they will prevent contamination making it useful to many professionals also. 304 &316 stainless steel which chromium-nickel material that offers very good corrosion resistance. So, GD stainless steel threaded fitting is the preferred choice for plumbers.

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  • Water
  • Drinking water
  • Chemical substances
  • Food sector


  • DIN EN ISO 228 G
  • ASME/ANSI B1.20.1 NPT
  • DIN EN10226-1(ISO7-1)


  • Casting Fittings
  • Pipe Fittings
  • Camlock
  • Flange
  • Customized
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Product features

  • Precision cast stainless steel according to material ASTM351-CF8&CF8M.
  • Seamless Stainless steel pipe according to ASTM A312-TP304&TP316L.
  • Max pressure : 20 bar up to 40° C or 16 bar up to 100° C.
  • Fittings size 1/8″-4″(DN6-DN100),5″&6″can be choose for pipe nipples.
  • High levelcorrosion resistance against acids.


Quality is part of Grande-tek culture – it help GD product development team go farther and develop more products that meet our existing standards.

All production process of us are independently assessed quality management system, register under ISO9001:2015, all other products you interesed in which from Grande-tek will meet these same high standards too. As a socially responsible business, we are equally proud to conform to ISO 14001, which means doing business with Grande-tek doesn’t cost the earth in more ways than one.In addition to these we also operate a health and safety management system that has been successfully assessed against ISO18001 standard.


It’s difficult to quantify the excellent service, but we insist one thing that service depends on the people we employ and the management method adapted. We insist to supply the safe & reliable & efficient service for each customer.

We have 15% employee with more than 10 years of working experience to keep the stable products output.36 QC Staff with Degrees or above helps us to fulfil the inspection for each process.

To control over 3000 skus , we developed our own production management and ERP system. all the production records, customer special requirements, and stock availability – all at the touch of a button. These all help us to keep100% accuracy for customers’ ordering,90% on-time rate for shipment.

Safety, efficiency and reliability have always been the unremitting pursuit of Grande-tek to serve the fluid industry.

What our customers say

” I am lucky to be a customer of Grande-Tek. We have cooperate together for more than 5 years and they never let me down no matter in product quality, price and after-sales service.”
” The sales staff were very kind and helpful. They are professional on market and products. Their products are competitve in the market.”
Mike L
“Quick feedback is one impression on me, especially when I have an urgent matter. Very good service and happy to cooperate with them.”

Any kind of business solution or consultation don’t hesitate to contact.

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