Goulds Pumps 3180-86 - IOM - Manual (Page 19)

Seal chamber option Description
TaperBore ™ PLUS with
packing conversion sleeve
• Only used with the 3181 and 3186
• Used with packing during startup, then converted to mechanical seal
Dynamic seal (not available
on XL1, XL2-S, and XL2)
• Only used with the S, M, L, and XL 3180 and 3185
• Used for tough applications where conventional mechanical seals or
packing require outside flush
• Contains a repeller mounted between the impeller and stuffing box cover
to pump the liquid out of the stuffing box while the pump is running
• Provides a static seal to prevent pumped fluid from leaking when the pump
is shut down
Power end
Part Description
Bearing
frame and
housing
For the S, M, L, and XL groups:
• The bearing frame and housing are constructed of cast iron.
• The frame is bolted and rabbeted to the stuffing box cover.
• The frame is sealed with labyrinth seals.
• No special parts are required to convert from grease to oil lubrication.
• The bearing frame cooling can be supplied as an option with oil lubrication.
• The bearing locknut and coupling extension are dimensioned in inches for models 3180 and
in millimeters for models 3185 and 3186.
For the XL1, XL2-S, and XL2 groups:
• The bearing frame and housing are constructed of cast iron.
• The frame is bolted and rabbeted to the frame adapter.
• The frame is sealed with labyrinth seals.
• Grease lubrication and bearing frame cooling are not available.
• The bearing locknut is in millimeters.
• The coupling extension is in inches.
Shaft
sleeve
For the S, M, L, and XL groups:
• The shaft sleeve is a renewable hook type, positively driven by the impeller key.
• One end is free to expand with possible temperature variations.
• A Teflon O-ring prevents leaks under the sleeve.
• The sleeve is dimensioned in inches for models 3180 and 3181 and in millimeters for
models 3185 and 3186.
For the XL1, XL2-S, and XL2 groups:
• The shaft sleeve is a renewable hook type, positively driven by the impeller key.
• One end is free to expand with possible temperature variations.
• A Teflon O-ring prevents leaks under the sleeve.
• The packing sleeve is dimensioned in millimeters, and the mechanical seal sleeve is
dimensioned in inches.
Bearings • The inboard bearing carries only radial loads.
• The inboard bearing is free to float axially in the frame.
• The outboard bearings are a 40° angular-contact, duplex set, mounted back-to-back.
• The outboard bearings carry both radial and axial loads.
• The outboard bearings are locked onto the shaft by a threaded locknut.
Hardware
All fasteners and tapped connections are metric.
Direction of rotation
The direction of rotation is clockwise (right hand) when viewed from the driver end.
Product Description
Models 3180, 3181, 3185, and 3186 Installation, Operation, and Maintenance Manual 17