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API RP 686:2009 pdf download

API RP 686:2009 pdf download.Recommended Practice for Machinery Installation and lnstallation Design.
critical service
Critical service is typically defined as those applications that are unspared /single-train installations whereby loss of operation would result in significant loss of production, loss of primary process containment, or threat to personnel safety.
A length of piping with no flow.
drop point
A vertical section of oil rrwst distribution piping that is usually smaller in diameter than the main oil mist header. This
piping rises out of a tee in the main oil mist header, turns horizontally, and extends downward to the machinery being
elastomeric coupling
A coupling that obtains its flexibility from the flexing of an elastomeric element.
engineering designer
The person or organization charged with the project responsibility of supplying installation drawings and procedures for installing machinery in a user facility after machinery has been delivered. In general, but not always, the engineering designer specifies machinery in the user facility.
epoxy grout
A type of grout material that consists of a resin base that is mixed with a curing agent (hardener) and usually an
aggregate filler.
equipment installer
The person or organization charged with providing engineering services and labor required to install machinery in a user facility after machinery has been delivered. In general. but not always, the installer is the project construction contractor.
equipment train
Two or more rotating equipment machinery elements consisting of at least one driver and one driven element joined together by a coupling.
equipment user
The person or organization charged with operation of the rotating machinery. In general, but not always, the equipment user owns and maintains the rotating machinery after the project is complete.
final alignment
The aligning of two adjacent machinery shafts after the measurement of piping-imposed strains on the machinery are verified as being within the specified tolerances.
flexible-element coupling
A type of rotating machinery coupling that descnbes both disk and diaphragm couplings. A flexible-element coupling
obtains its flexibility from the flexing of thin disks or diaphragm elements.
gear coupling
A type of rotating machinery coupling that obtains its flexibility by relative rocking and sliding motion between mating,
profiled gear teeth.
Refers to an application that is usually spared or is in noncntical service.
general-purpose equipment trains
Those trains that have all general-purpose elements in the train. They are usually spared, relatively small in size (power), or in noncritical service. They are intended for applications where process conditions will not exceed 48 bar gauge (700 lb/in.2 gauge) pressure or 205 °C (400 °F) temperature (excluding steam turbines), or both, and where speed will not exceed 5000 revolutions per minute (rpm).
NOTE General-purpose equipment trains have all elements that are either manufacturers standard or are covered by standards such as the following: ASME B73 pumps, small API 610 pumps. fans. API 611 steam turbines, API 672 air compressors, API 677 general-purpose gears. API 674 reciprocating pumps. API 676 rotary positive displacement pumps. API 680 reciprocating air compressors, and NEMA frame motors.
An epoxy or cementatious material used to provide a uniform foundation support and load transfer link for the installation of rotating machinery. This material is typically placed between a piece of equipment’s concrete foundation and its mounting plate (see 2.32).
grout pin
A metallic pin or dowel used to tie an epoxy grout pour to its concrete foundation to prevent delamination (or edge
lifting) due to differential thermal expansion between the grout and the concrete.
head box
A device used to funnel grout into a baseplate grout fill-hole so as to provide a static head to aid in filling all baseplate
cavities with grout.
isolation block valve
A valve used to isolate a process machine preparatory to maintenance. Also known as a block valve or Isolation
mechanical piping analysis
An analysis of the piping connected to a machine to determine the stresses and deflections of the piping resulting from temperature, pressure, and dynamic loadings such as pulsating flow (mixed phased flow). Determination of the type, location, and orientation of piping supports and piping guides results from this analysis.


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