Goulds Pumps 3600 - IOM - Manual (Page 44)

Commissioning, Startup, Operation, and Shutdown
Note that only one of the two connection ports in the radial bearing housing (134) is used
(immediately above the single row radial bearing). You must connect to both connections
on the thrust bearing housing, because there are two rows of bearings.
Oil-mist connections
A. Radial and thrust
B. Thrust only
C. Radial and thrust drain
3. For pure-oil mist, connect the drain lines to the outlet connections.
This is not required for purge-oil mist.
Convert to oil-mist lubrication
NOTICE:
Make sure that pipe threads are clean and apply thread sealant to plugs and fittings.
You can convert from ring-oil lubrication to oil-mist lubrication in pumps with ball bearing
construction. The radial and thrust end bearing housings (134) have pre-drilled connections for
oil misting:
• 1/4 in. NPT connection on the inboard side of the housing
• 1/2 in. NPT connection on the outboard side
Purge-oil mist lubrication provides intermittent oil mist in the bearing housing. This system uses
the oil sump in the housing, and requires the oil ring and the constant-level oiler.
Pure-oil mist lubrication provides constant oil mist in the bearing housing. This system does not
use the oil sump, oil ring, or constant-level oiler. The drain connections in the bearing housing
are used as part of the oil recirculation system.
1. On the radial housing, replace the 1/4 in. NPT plug with an oil-mist fitting provided by the
oil-mist system manufacturer.
The 1/2 in. NPT connections remains plugged because it is not required in the oil-mist
system.
42 Model 3600, API 610 8th, 9th, 10th & 11th Editions (ISO 13709) Installation, Operation, and Maintenance Manual