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|  MIL-P-17639F(SH)
(a)
Lubrication schedule including lubricant and procedure.
(b)
A statement directing the user of the technical manual
to see the Centrifugal Pump Chapter of the Naval Ships
Technical Manual for the criteria for replacing mechan-
ical seals due to leakage. The pump technical manual
shall not redundantly specify the same or different
criteria.
(c)
Torque values and sequence required to maintain proper
seal and alinement.
In-field dynamic balancing instructions.
(d)
(e)
The mechanical seal installation procedure including
complete information regarding adhesive, the adhesive
time limits and lubricant (see 3.6.1.4), and any
additional guidance needed to avoid causing an excessive
preload on the mechanical seal.
3.7.6 The quantity and distribution of manuals shall be as specified
(see 6.2.1).
3.8 Design data and calculations. Design data and calculations and design
records shall be submitted for approval of the design review agency for each pump
class, design and size, Submittal shall be not later than submittal of design
drawings for approval. It is intended that the design data and calculations
shall be in sufficient detail to describe the design, physical appearance and
internal assembly to permit release for manufacture. References listing the
author, publication, volume or text for all assumptions made in the calculations
and for all formulae or methods of computation not readily identifiable shall be
cited.
3.8.1 Design performance curves.
The following curves shall be provided:
(a)
Head versus flow.
(b)
Hydraulic efficiency versus flow.
(c)
Net positive suction head required versus flow.
(d)
Brake hp versus flow. This curve shall demonstrate that the
motor is not overloaded under any condition of suction head,
discharge head or free delivery possible within the pump
application.
A discussion of the following design features shall
3.8.2 Design features.
be provided:
(a)
Number of stages and reasons for selection.
(b)
Method of shaft sealing.
(c)
Type of coupling including previous service experience.
Those areas in which system design conditions, as furnished by -
(d)
the design review agency, adversely affect pump reliability
or result in abnormal design features.
(e) Steps required for disassembly and reassembly (including
alinement) to perform routine maintenance.
(f) For sea water pumps the galvanic, wear, and galling compatibility
of the materials used for parts in contact with the pumped fluid.
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