The main components of materials
No. Part Name gray cast stainless steel acid resistant stainless steel ultra-low carbon steel
Z C P R PL RL
A body / bonnet HT250 WCB CF8 CF8M CF3 CF3M
2 disc WCB CF8 CF8M CF3 CF3M
3 stem 1Cr13 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 00Cr18Ni10 000Cr17Ni14Mo2
4 lining / seat PTFE (F4), PCTEF (F3), FEP (F46), PFA (soluble F4), PP, PO
5 fastening pin 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 00Cr18Ni10 000Cr17Ni14Mo2
6 Packing PTFE (F4)
7 gland WCB CF8 CF8M CF3 CF8
8 Bracket WCB CF8 CF8
9 fastening bolts 35 1Cr17Ni2 1Cr18Ni2
10 Nuts