Today we cont. with material selection.
The important part to manufacture the valve is material selection.
Normally customer requested based on their fluid service & resistance of corrosion.. As normal practice, all manufacture of valve followed guideline from API & ASME..
Apa yang aku boleh ringkas secara general, material devided by four.
1. Carbon Steel
2. Stainless Steel
3. Duplex Stainless Steel
4. Super Duplex Stainless Steel.
Itu sahaja buat masa ini.