Description for
Yanmar N330 Inlet Valve:
1. Materials: SUH37(12-12N)+ seat stellite welded + over all Nitrided(Tufftrided)
(comply to Japan Standard JIS G4311)
2. Upset forging and die pressing for grain flow along head profile.
3. Close controlled heat treatment for achieving proper mechanical properties and metallurgical structure.
4. Stress released completely for microstructure and dimensional stability.
5. Supersonic detection for welded seat, dye penetrant or magnetic particle inspection for entire valve.
6. LR, BV, CCS Certificate depends on needs.
7. Proven Reliability by European customers.