2
IMPORTANT NOTE
The importance of seal chamber priming cannot be overemphasized. Due to the prevalence
of seal damage and leakage caused by not filling the seal chamber with liquid before
putting a pump in service, this page is located at the beginning of this document.
SEAL CHAMBER PRIMING
Fill mechanical seal chamber with liquid to insure seal does not start dry. This can be done by removing seal
vent set-screw and pouring liquid into vent passageway before opening pump inlet. Alternately, seal
chamber can be vented in situations where inlet pressure is above atmospheric by opening inlet and
discharge valves and then loosening seal vent plug to allow positive inlet pressure to push air out of seal
chamber until oil flows from it.
See figure below.
Filling or Venting Seal Cavity Using Seal Vent
CAUTION
Failure to fill or vent seal chamber as described above may cause damage to seal running
faces which may result in seal leakage.
Summary of Contents for *G3D-187
Page 18: ...18 Figure 12 Type 2 8 1 O ring Seat Rotor Size 250...
Page 20: ...20 Figure 14 Type 2 81 and O ring Seat Rotor Size 250...
Page 21: ...21 Figure15 Type BX Rotor Size 187 through 250...
Page 22: ...22 Figure16 Type 9B3 Rotor Size 187...
Page 23: ...23 Figure 17 No Seal Rotor Sizes 187 through 312...
Page 27: ...27 Note Idler Cups 20 not required on some designs...
Page 28: ...28 Note Idler Cups 20 not required on some designs...
Page 29: ...29 Note Idler Cups 20 not required on some designs...
Page 30: ...30 Note Idler Cups 20 not required on some designs...
Page 31: ...31 Note Idler Cups 20 not required on some designs...
Page 32: ...32 Note Idler Cups 20 not required on some designs...
Page 33: ...33...
Page 34: ...34...
Page 35: ...35...
