Page 426 - Practical Machinery Management for Process Plants Major Process Equipment Maintenance and Repair

404 Major Process Equipment Maintenance and Repair

QOVERNOR VALVE
QOVERNOR VALVE

QOVE
VALVE

0
EU
CONNECTION

Detail "E" d#m Qw- v.lw
Dot8il "A" shows QOWmor VrlW cover ad pvklng rrrrngornm for
corn md packing arrangement usu- iniat rtmm conditions above 250 psig
ally usod for inlet stmm condltions [17.2 bar]. The paking arrange
below 250 palg p7.2 bar]. The pack- ment conslsls of 7 packing rings, a
Ing arrangmmont consists 01 7 pvk- iantam rinQ. foliowed by 1 packing
lng rings. ring.
DETAIL "A" DETAIL "E"
Figure 8-14. Governor valve packing arrangement.

ROTOR SHAFT ~ INSPECTION PLUG

LUBRlCATlNQ OIL COOLING WATER

Flgure 8-15. Oil ring lubrication.