Trunnion Ball For Ball Valves

Trunnion Ball Valves
nominal size: dn6"-60"(dn150-1500)
pressure rating: ansi 150-2500(pn16-420)
base material:
-ferrite steel: astm a105,a105n; a350 lf2
-austenitic steel: a182 f304,f304l,f316,f316l,f317,f317l,f321
-duplex, super steel: a182 f51f53f55f60
-martensite steel: a182 f6aaisi 410
-nickel alloy steel: monel, inconel, hastelloy,
-precipitation hardening steel:17-4pha564 gr.630
coating:
-enp
-chrome plating
- tin coating titanium nitride coating
-tcc(tungsten carbide coated)
-chrome carbide
-stellite coated
-inconel coated
-special coated
sphericity: ra0.2-0.4 on spherical surface
for metal seat ball valves, aea have rich experiences on the kit's seats and balls, lapping and grinding are carried out after the coating operation.