TM 9-6115-604-34
NAVFAC P-8-633-34
CROSS-SECTION OF THE VALVE SEAT INSERT
A - MINIMUM VALVE SEAT WIDTH
0.060 INCH (1.52 mm)
B - MAXIMUM VALVE SEAT WIDTH
0.100 INCH (2.54 mm)
C - NARROWING AREA
D - NARROWING AREA
VALVE SEAT ANGLE
30 DEGREES FROM HORIZONTAL
TOP NARROWING ANGLE
15 DEGREES FROM HORIZONTAL
THROAT NARROWING ANGLE
30 DEGREES FROM VERTICAL
(60 DEGREES INCLUDED)
Figure 9-9. Cross-Section of Valve Seat Insert
9-15
