 |
|||
|
|
|||
| ||||||||||
|
| MIL-P-19131(SHIPS)
3.3.7.2 Each horizontal pump and driving unit shall be mounted on a common
bedplate.
3.3.7.3 Unless otherwise specified in the contract or order, each vertical pump
and driving unit shall be base mounted or table mounted, as specified (see 6.1).
3.3.7.4 For the base mounted units, the base may be either integral with the
pump casing or a separate piece, and the base shall have provision for bolting to a
foundation.
3.3.7.5 For the table mounted units, the table mount may be either integral
with the pump casing or bracket, or it may be a separatepiece.
3. 3.7.6 A suitable bracket shall be provided between the pump and driver of
vertical units.
3.3.7.7 When so specified, class N-4 and O-3 pumps may be attached directly
to the units being served (such as an engine or purifier) instead of having their own
bedplates. These pumps may also be driven by the units served.
3. 3.7.8 Bedplates, bases, table mounts and brackets shall be designed so that
they shall be sufficiently rigid to permit handling, shipment and installation of the
unit onboard ship, without disturbing the alignment of the assembled units, and such
that the norm al distortion, w eaving or vibration of the supporting structures
onboard ship cannot cause misalignment between the pumps and driving units,
3.3.7.9 Each component part of an assembled unit supported directly by the
bedplate, base, table mount, or bracket, shall be doweled thereto to facilitate
reassembly and maintenance of alignment.
3.3.7.10 All bearing and seating surfaces of bedplates, bases, table mounts,
or brackets shall be finished machined.
3.3.7.11 In the event special bulkhead mounting is required, sideplates shall
be furnished subject to all the conditions specified for bedplates.
3.3.7.12 Horizontal class O-2 and N-2 pumps shall be designed so that all
bearings rotors, and shafts may be removed and replaced without disconnecting
piping, except stuffing box gland seal piping, and without removing the pump or its
driving unit from the bedplate or base.
9
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals