5.16.2 Doweling for low differential temperature service
Use this method to dowel the drive end pump foot to the baseplate pedestal when there is not a high
temperature differential between the ambient temperature during setup and the temperature of the pump-
ed fluid.
NOTICE:
This procedure should not be followed if the pump and baseplate have been supplied with dif-
ferential temperature doweling (See Doweling for high differential temperature service).
Required tools
•
Two number 7 taper pins
•
One number 7 taper pin reamer
•
21/64 in. or Q size drill
•
Hardwood block or soft-faced hammer
NOTICE:
This procedure must be done only after the pump is properly aligned with the baseplate pedes-
tal.
1.
Confirm the pump is centered on its pedestal so that the hold-down studs are centered in the
pump foot clearance holes.
2.
Tighten the pump hold-down bolts.
3.
Drill two holes through the pump foot and pump pedestal. Position each hole between the hold-
down bolt and the end of the pump foot at the coupling end on both sides.
4.
Ream the holes with a number 7 taper pin reamer to the proper fit with the taper dowel pins. In-
sert the pins deep enough so that only the threaded portions are exposed when the pins are fully
seated.
5.
Seat the taper pins firmly in the holes with a hardwood block or soft-faced hammer.
If you should ever need to remove the dowel pins, tighten the hex nuts provided on the pins. If the pins
are not seated deeply enough, put a spacer under the hex nuts in order to lift the pins free when the hex
nuts are tightened.
NOTICE:
Always remove the dowel pins before removing the casing. Failure to do so can result in casing
damage.
5.16.3 Doweling for high differential temperature service
The factory will incorporate this method to dowel the pump to the baseplate pedestal if there is a high
temperature differential between the ambient temperature during setup and the temperature of the pump-
ed fluid.
When the differential is high the baseplate is supplied with provision to accommodate differential temper-
ature doweling. This design ensures the alignment between the pump and driver is maintained while al-
lowing the case to thermally move.
Differential temperature doweling uses a fixed dowel pin block (Detail 1) on the drive end of the pump to
maintain alignment to the driver. The non drive end of the pump uses a dowel pin block with a slot paral-
lel to the pump shaft (Detail 2) to allow the pump case to thermally move.
5.16 Doweling the pump casing
3640 i-FRAME API Type BB2 2-Stage / ISO 13709 2nd Ed. API 11th Ed. Installation, Operation, and Maintenance Man-
ual
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Содержание Goulds Pumps i-FRAME 3640
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