Product Description
MAN 40/54 Exaust Valve
:
1. The
MAN 40/54 exhaust valve
can be in standard or in alternative materials as below:
(comply with European Standard EN10090: 1998 Valve Steels and Alloys for Internal Combustion Engines).
A. Valve head
Nimonic 80A
(NiCr20TiAl + friction welded stem1.4718(X45CrSi9-3) + stem chrome plated
B. Entire in
Nimonic 80A
(NiCr20TiAl) + stem chrome plated.
C. Spindle 1.4866(X33CrNiMnN23-8 or
23-8N
) + seat stellite welded + stem chrome plated
D. Spindle 1.4731(X40CrSiMo10-2) + seat stellite welded + stem chrome plated
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.