Glossary C1


Cantilevered pump  - a pump whose impeller is cantilevered from its bearing
assembly, or a pump with only one bearing housing assembly as opposed to a
"between-bearing" pump which has two bearing housing assemblies mounted
on opposite sides of the pump casing. A cantilevered pump, which typically is also
a radial split pump, can be either a horizontal or a vertical pump. It is also known
as
overhung pump.


Cartridge seal - A self contained mechanical seal assembly, including the seal,
sleeve, gland, mating ring, etc., that is pre-assembled and preset for installation
as a unit.


Case  - the pressure-containment part  of a pump that has the volute (or diffuser)
chamber that encloses the impeller, or impellers. The case can be axial or radial
split. For radial split case, a cover is required to complete the pump casing.


Case crowning - refers to the method or style of machining the horizontal split-line
surface of the upper half case of a horizontal pump with a very small angle, or
taper. The purpose of case crowning is to transfer a higher amount of the bolt load
towards the case bore to pinch the case gasket and prevent washout especially
around the volute areas.


Case retiring thickness - the minimum thickness in which a pump casing has to
be replaced, or
retired, due to loss of metal thickness caused by erosion or
corrosion over a period of time.


Certified material test report (CMTR)


Close-coupled pump - a pump whose impeller is mounted directly on the driver
shaft. The driver is designed with a special extended shaft to accommodate the
impeller. Close-coupled pumps are popular for its small footprint and light weight  
but are limited in sizes. See
flexible-coupled pump.


Closed impeller - an impeller with two shrouds or disks – on front and back side -
which enclosed the vanes; also referred to as enclosed impeller.


Next page for Glossary C


R: 0811-GLOC1
C: glossary
F: glossary C1

Beta version
CENTRIFUGAL-PUMP.ORG
TECHNICAL

Concepts

Parts

Auxiliaries

Glossary

Engineering data

Library

Bulletin board




Go to our Sitemap
for list of articles



By accessing this site
you agree to our
Terms of Use and
Legal Disclaimer



Copyright notice
Privacy policy
Glossary starting with letter:

A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z

A2  B2  C2  D2  E2  F2  G2  H2  I2  K2  L2  M2  N2  O2  P2  R2  S2  T2  U2  V2  W2
Custom Search