MAN B&W intake valve

MAN B&W 21/31 VALVE SPINDLES

21/31
INTAKE VALVE SPINDLE & EXHAUST VALVE SPINDLE
Quantity
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Description

Engine Model

 Description

  Dimension

 Part Number

21/31

in/exh valve spindle

￠72×￠16×338×120°

D11.11457-0545,      50502-07-274

21/31

inlet valve seat

￠78×￠56×15×120°

E11.05540-0333

21/31

exhaust valve seat

￠80×￠53×43×120°

D11.05540-0332

MATERIAL FOR VAVE SPINDLE: 1. 4Cr10Si2Mo with Stellite.

  1. 23-8N with Stellite.
  2. Nimonic 80A

MATERIAL FOR VAVLE SEAT: 42CrMo with stellite